Academic Activity Peter Stallinga

Academic Activity of Peter Stallinga

University of The Algarve

updated: April 2010

1. Preface
2. CV
3. Scientific Activity
4. Pedagogic Activity
5. Administrative Activity
6. Graphical Design

1. Preface

This document is a description of my activity at the university of The Algarve. It was originally written for the application of the permanent-assignment position and includes a CV and the description of scientific and pedagogic work done. The document is written in the HTML format to facilitate the modern techniques of browsing through the document in an electronic fashion and is available online at http://w3.ualg.pt/~pjotr and on CD, where also a Portuguese version can be found. Where indicated, clicking on the associated icons will open documents in the formats of PDF

, Powerpoint presentation

and WinZip

(some documents only available on CD version). Public domain versions of Acrobat Reader (pdf) and WinZip are available at http://www.download.com.

Peter Stallinga, Faro, April 2010.

2. Curriculum Vitae

Name: Peter Stallinga
Gender: male
Place of birth: Amersfoort, The Netherlands
Date of birth: 28 May 1966
Nationality: Dutch
Passport: NG5696847 emitted by the Dutch Embassador in Lissabon
Marital status: married, 1 child
Institutional address: Universidade do Algarve, FCT-DEEI, Campus de Gambelas, 8005-139 Faro, Portugal
Tel: +351-289800100 Ext. 7756
FAX: +351-289800030
e-mail: e-mail

Private address: Vale da Amoreira, Lote 12, 6 esq., 8005-334 Faro, Portugal

Main scientific area of research: Physics of electronic materials
Other scientific areas of interest: Informatics, Electronics, Biotechnology

Academic degrees:
PhD in Physics, University of Amsterdam, 1994, thesis title “Investigation of selected paramagnetic centers in semiconductors”
drs in (informatics within) Physics, University of Amsterdam, 1988

Present position:
Professor Auxiliar with definitive assignment, Universidade do Algarve, Portugal, Faculty of Sciences and Technology, Department of Electronic Engineering and Informatica, 2000-

Previous positions:
Professor Auxiliar Convidado, University of The Algarve, Portugal, 1999-2000
PostDoc, University of The Algarve, Portugal, 1997-1999 Current subject, Electrical characterization of Organic semiconductors.
PostDoc, University of Aarhus, Denmark, 1995-1997 Magnetic resonance of hydrogen-related centers in silicon
PostDoc, University of California at Berkeley, USA, 1994-1995 Magnetic Resonance and optical characterization of defects in III-V semiconductors

Language skills:
   Dutch (native)
   English (fluent)
   Portuguese (fluent)
   German (speaking, writing)
   French (understanding)
   Polish (basic level)

List of Publications (all) in annex

3. Scientific Activity

Introduction
Most scientific work was carried out at the University of The Algarve (UAlg) in the laboratory of OptoEl (later embedded into the Center for Electronics Opto-Electronics and Telecommunications, CEOT).
I am at the moment 100% dedicated to CEOT, although many cooperations exists with other research groups in UAlg, Portugal (Lisboa) and Europe.

Highlights
The research up to April 2010 can be divided into the following branches (in chronological order)

Defects in Semiconductors (Magnetic Resonance)
Organic Electronics
Sensing
Electronic Instrumentation
Biotechnology
The Climate (hobby)

This was preformed in European research networks, such as SELOA and MONA-LISA and national projects with partners in Portugal. In total cooperations exist(ed) with Amsterdam (UvA), Bologna (CNR), Eindhoven (Univ. and Philips Research), Durham (Univ.), Marburg (Univ.), Thiais (Univ.), Wuppertal (Univ.), Pau (Univ.), Glasgow (Univ.), Würzburg (Univ.), Madrid (IMM), Bergen/Mons-Hainaut (Univ.), Cambridge (Univ.), Linköping (Univ.), Łódz (Univ.), Banska Bystrica (Univ.), and Lisboa and Aveiro (Univ.).

VH2 model

Defects in Semiconductors
Defects, intentionally or unintentionally introduced into the materials determine the electrical characteristics of semiconductors. The study and aquired knowledge of these defects has paved the way for the semiconductor technology to keep following Moore's law, with ever higher density of transistors and ever increasing speed of integrated circuits. As a PhD student in Amsterdam, I used Electron Paramagnetic Resonance (EPS) and related resonance techniques (ENDOR, FSE, etc) to study these defects in various semiconductor materials. The main topic was hydrogen in silicon, where the hydrogen was implanted by a 5 MeV particle accelerator into bulk silicon. As a highlight, the obtruse hydrogen molecule was for the first time detected in silicon (Phys. Rev. Lett. (1993)).
In two consecutive PostDoc positions, one in Berkeley (California) and one in Århus (Denmark), the work was continued. In Berkeley other materials and techniques were used, including Photo-luminescence (PL) and Magnetic Circular Dichroism (MCD). The long-stranding debate as to the origin of the Arsenic antisite in GaAs was solved (Phys. Rev. B (1998)).
In Århus I returned to the topic of hydrogen in silicon. This time not only with EPR but also FTIR (Fourrier-Transform InfraRed spectroscopy). Many new defects were discovered, some of them for years in vain tried to find by other groups in the world (Phys. Rev. Lett. 1997, 1998, Phys. Rev. B 2002).
For the electronic components of ultrafast modern computers, defects are no longer the limiting factor. Moreover, I realized that the reason for studying radiation defects mainly lies its military aspects. As such he was looking for a new, more society relevant research topic and switched his research area in a dramatic way to Electrical Measurements of Organic Materials at the University of the Algarve, a young and energetic university with high potential in research.

Energy diagram Schottky barrier

Organic Electronics
The idea in the organic electronics part of the research is characterizing new organic materials for modern electronics. Such "plastic electronics" should, in principle, find applications in low-cost areas such as electronic bar codes. However, plastics, as we all know, have properties that can be tailor made and thus also create their own market, in, for example, flexible electronics or displays. As an example is the major advance in printed electronics using standard printing techniques such as offset printing, etc. This kind of electronic devices can only be made with organic materials.
The applications of plastic electronics can thus be subdivided into light-emitting devices and current-control devices. The example for the first is LEDs (light-emitting diodes), while for the latter an FET (field-effect transistor) is the classical example. The research effort is more or less divided equally over these two areas. The OptoEl laboratory, in which I am working, is involved in both areas. The first years were spent on two-terminal devices (Schottky diodes and pn bipolar diodes) for optical applications using impedance spectroscopy. As a highlight, a system was built that could measure deep levels in organic devices. This variant of DLTS (deep-level transient spectroscopy) was at that time the first successful DLTS experiment in organic materials, whereas DLTS is a standard characterization technique for in-organic materials such as Si, AlGaAs and InP, see J. Appl. Phys. (2001).
In the latter years research was focused on three-terminal devices, namely thin-film FETs. Over the years it has become clear that organic materials in FETs behave similar to amorphous silicon. In particular, most organic materials cannot be grown easily in mono-crystalline form and they consequently are trap-ridden. This causes an efficient trapping of mobile charges onto deep levels from whence they are difficult to be removed. Side effects of these traps are 1) Non-exponentially decaying currents with times scales milliseconds to days. 2) Gate-bias dependent effective charge mobility. 3) Drain-bias dependent effective mobility. 4) Stressing (continuous increase of the threshold voltage on time in operation) 5) Thermally activated currents 6) Meyer-Neldel rule observation (activation energy of current depends on bias conditions). This has been summarized in publications in J. Appl. Phys (2004) and Org. Electr. (2006). Moreover, non-linear effects are often attributed to the contacts. While we have shown this to be incorrect (non-linear effects are a result of the Poole-Frenkel type of conduction), it left room for a correct description of the contacts, which are best decribed by metal-metal junctions, see Org. Electr. (2008).
During a visit to the research group of Dr. Michele Muccini, a light-emitting field-effect transistor (LE-FET) was fabricated and measured. This merits to be highlighted because it was, to our knowledge, the first such device in the world (Synth. Metals, 2004).
Recently, a cooperation was started with the University of Hong Kong for developing electronic devices based on DNA. In this approach, DNA is treated as any other organic material, with the advantage of the capability of DNA to self assemble and self organize. This will enable to bridge the gap to molecular electronics.
A metal transistor was preicted by me as a direct result of the way the thin-film transistor was modeled. Because the device with a metal for the active layer fully behaved as a transistor, with the source-drain current programmed by the gate-bias the device worked as a proof-of-principle for the Algarve Model for transistors.
As an unexpected side effect, in cooperation with electronics collegaues, the transistor is found to be much faster than state-of-the art silicon transistors of equal dimensions. The potential implications of this are of course enormous.
All these ideas were summarized in the book "Electrical Characterization of Organic Electronic Materials and Devices" (Wiley 2009).

Landmine explosion

Sensing
Building on the knowledge of electrical measurements described above two projects were started in the OptoEl lab.
Measuring living biological entities using impedance spectroscopy (Bio-FET) in a cooperation with Prof. Leonor Cancela of the Center of Marine Sciences (Centro de Ciências do Mar). The initial plan was to use FETs as sensing devices to measure the activity of living cells. Later it was discovered that using impedance spectroscopy in a micro-electrode array, the monitoring is much more effective. The interaction of antibodies of sea shells with parasites was measured in the evolution of loss-tangent (1/ωRC) (IEEE Sensors 2004).
In a contemporary project, FETs, based on the organic material sexithiophene (T6) were used in sensing the vapor of TNT commonly found in land mines. This research was driven by the need for a cheap and reliable (especially avoiding so-called "false negatives") sensors to remove the hundreds of millions of land mines still scattered over our planet, leftovers from less peaceful times. The use of FETs for the sensing is justified by their property of being multi-parametric. While simple resistors could, in principle, also respond to the TNT molecules, their response is less selective, since the only thing that can change is the resistance value. FETs have more parameters, such as mobility, threshold voltage and leakage current. Monitoring all parameters simultaneously increases the selectivity to, for instance, distinguish between exposure to oxygen and TNT (IEEE Sensors 2004).

Quartz Crystal Microbalance

Scientific Instrumentation
Optoel being a new laboratory, everything had to be set up nearly from scratch Moreover, my background was not in the electrical measurements area but magnetic resonance instead. As a postdoc in the period 1997-1999 I learned the electrical measurement techniques, specifically impedance measurements.
Over the years, a variety of measurement systems has been developed by me, thus turning OptoEl into an instrumentation experts group. These measurements systems include
- RCL (resistance, capacitance, inductance) Impedance measurements in the range 50 Hz - 1 MHz based on Fluke PM6306 RCL Bridge. Measuring: Spectra, RCV Curves and Transients.
- LF-RCL (low frequency RCL) Low frequency impedance measurements in the range of 1 mHz - 100 kHz home designed, based on a Stanford Research Systems Lock-In Detector SR830.
- FET (field effect transistor) measurement system, home built, based on a Keithley 487 picoammeter and a Hewlett Packard 6614C equipment, measuring IV curves, transfer curves and transients.
- TSC/TSCAP (temperature scanned current/capacitance) for determining traps and current processes in electronic materials.
- DLTS (deep-level transient-spectroscopy) system dedicated to low conductivity materials.
- Quartz Crystal Microbalance (QCM). Measuring resonance frequency with a Pendulum 666 frequency counter
- Measuring the full impedance spectrum with an HP 8712C Network Analyzer.
The latter two were used in a cooperation with the CBME (Centro de Biomedicina Molecular e Estrutural) research center to measure the kinetics of chemical reactions, in particular as detectors for DNA and antιbodies (Biosens. and Bioelectr. (2007), J. Molec. Recognit. (2009)). My PhD student, João Encarnação graduated in 2008 in this field.
Moreover, I have a background in informatics (studied Experimental Physics with Informatics branch in Amsterdam) and gained knowledge in "interfacing" (connecting equipment to computers for control and data acquisition). Especially the combination of knowledge in Informatics and one of the Natural Sciences is not often encountered. For this reason, I was often invited to help set up the technical equipment in other laboratories. As an example, often visits were made to the group of Prof. Jorge Morgado in Lisboa to help with their set-up. More elaborate projects were undertaken with the group of Dr. Michele Muccini in CNR Bologna. Custom-made applications were developed in LabVIEW, Visual Studio and PASCAL.

Global Warming

The Climate
For some time our society is pestered by a pessimistic outlook for the climate. How can that be? Not twenty years ago there was no such thing as Global Warming. 30 years ago the idea was Global Cooling. Moreover, how can it be that one of the most harmles substances on earth, carbon dioxide, is attributed the role of responsible agent? Passionate for the weather and climate since early childhood, I have been studying both sides of the debate and can only conclude that Global Warming is the result of the political way the subject is treated. With international political bodies such as the IPCC dictating the science, the outcome of 'research' is inevitable. The ideas were summarized in a book "De Mythe Van Klimaatsveranderingen" (Lulu 2010, in Dutch). This will hopefully reopen the discussion in the scientifically unhealthy area where saying anything against the models of Global Warming is considered a crime against humanity.

Cooperations / Networks

A cooperation was established with the research center CBME (Centro de Biomedicina Molecular e Estrutural) of the University of the Algarve, specifically with Prof. Guilherme Ferreira and Eng. João Encarnação. In this cooperation, a system was set up to measure the resonant frequency of quartz crystals with an immediate application the study of the kinetics of chemical reactions and sensors for DNA. A talk was given in the CEOT research center about the progress in February of 2005 (

). I regularly participated in the meetings of the CBME research center.

Two one-month visits were made to the Istituto di Spettroscopia Molecolare, Consiglio Nazionale delle Ricerche in Bologna, Italy, in the group of Dr. Michele Muccini:

July 2002 : In-situ measurements were carried out of field-effect transistors of BDT and tetracene.

July 2003 : A measurement system ("BolognaFET") was set up for field effect transistors. FETs of terrylene and tetracene were measured. A light-emitting field-effect-transistor, LE-FET (the first in the world) was fabricated and characterized. A system ("PulseFET") was set up for measuring FETs with ultra-short pulses (20 ns) which is based on a ultra-fast, high band width, oscillosope of LeCroy and a pulse generator of Agilent.

A cooperation was started with the Hong Kong University on the measurement of electronic devices based on DNA materials. This is still in very early stages. The first results are on a field-effect transistor. The person directly involved is Dr. V.A.L. Roy at The Department of Chemistry of The University of Hong Kong.
Another cooperation with them is the fabrication of the metal transistor.

De Universiteit van Amsterdam. During a sabbatical leave the Space Sperated Quantum Cutting was discovered and worked out.

List of Publications (LoP)

Title	Authors	Reference	Impact Factor*	pdf
Book (monograph) De Mythe van Klimaatsveranderingen (Dutch. The Myth of Climate Changes)	Peter Stallinga	Lulu (July 2010) ISBN: 978-1-4461-3493-1 (hardcopy) ISBN: 978-1-4457-6407-8 (paperback)	-
Book (monograph) Electrical Characterization of Organic Electronic Materials and Devices	Peter Stallinga	Wiley (9 December 2009) ISBN-10: 047075009X ISBN-13: 978-0470750094 link to amazon.com link to Wiley	-
Resistive switching in nanostructured thin films	H. Silva, H.L. Gomes, Yu.G. Pogorelov, P. Stallinga, D.M. de Leeuw, J.P. Araujo, J.B. Sousa, S.C.J. Meskers, G. Kakazei, S. Cardoso, P.P. Freitas	Appl. Phys. Lett. 94, 202107 (2009) doi: 10.1063/1.3134484	4.308
Determining carrier mobility with a metal-insulator-semiconductor structure	P. Stallinga, A.R.V. Benvenho, E.C.P. Smits, S.G.J. Mathijssen, M. Cölle, H.L. Gomes, D.M. de Leeuw	Org. Electr. 9, 735 (2008) doi: 10.1016/j.orgel.2008.05.007	3.636
Piezoelectric biosensors assisted with electroacoustic impedance spectroscopy: A tool for accurate quantitative molecular recognition analysis	João M. Encarnação, Peter Stallinga, Guilherme N.M. Ferreira	J. Molec. Recognit. 22, 129 (2009) doi: 10.1002/jmr.907	3.712
Metal-insulator-metal transistor	P. Stallinga, V.A.L. Roy, Z.-X. Xu, C.-M. Che	Advanced Materials 20, 2120 (2008) doi: 10.1002/adma.200702525	9.11
Modeling electrical characteristics of thin-film field-effect transistors. III: Normally-on devices	P. Stallinga, H.L. Gomes	Synthetic Metals 158, 473 (2008) doi: 10.1016/j.synthmet.2008.03.011	1.278
Space-separated quantum cutting with Si nanocrystals for photovoltaic applications	D. Timmerman, I. Izeddin, P. Stallinga, I.N. Yassievich, T. Gregorkiewicz	Nature Photonics 2, 105 (2008), doi: 10.1038/nphoton.2007.279	24.982
Switching in polymeric resistance random-access memories (RRAMS)	H.L. Gomes, A.R.V. Benvenho, D.M. de Leeuw, M. Cölle, P. Stallinga, F. Verbakel and D.M. Taylor	Organic Electronics 9, 119 (2008), doi: 10.1016/j.orgel.2007.10.002	3.636
Nanocomposite field effect transistors based on zinc oxide/polymer blends	Zong-Xiang Xu, V.A.L. Roy, Peter Stallinga, Michele Muccini, Chi-Ming Che	Appl. Phys. Lett. 90, 223509 (2007)	4.308
Metal contacts in thin-film transistors	P. Stallinga, H.L. Gomes	Org. Electr. 8, 300 (2007)	3.636
Thin-film field-effect transistors: the effects of traps on the bias and temperature dependence of field-effect mobility, including the Meyer-Neldel rule	P. Stallinga, H.L. Gomes	Org. Electr. 7, 592 (2006)	3.636
Modelling electrical characteristics of thin-film field-effect transistors. II: Effects of traps and impurities.	P. Stallinga, H.L. Gomes	Synthetic Metals 156, 1316 (2006)	1.278
Modelling electrical characteristics of thin-film field-effect transistors. I: Trap-free materials.	P. Stallinga, H.L. Gomes	Synthetic Metals 156, 1305 (2006)	1.278
Influence of electrolytes in the QCM response: Discrimination and quantification of the interference to correct microgravimetric data.	João M. Encarnação, Peter Stallinga, Guilherme N.M. Ferreira	Biosensors and Bioelectronics 22, 1351 (2007)	3.251
Electrical instabilities in organic semiconductors caused by trapped supercooled water	H.L. Gomes, P. Stallinga, M. Cölle, D.M. de Leeuw, and F. Biscarini	Appl. Phys. Lett. 88, 082101 (2006)	4.308
Traps states as an explanation for the Meyer-Neldel rule in organic semiconductors	P. Stallinga, H.L. Gomes	Org. Electr. 6, 137 (2005)	3.636
Tetracene-based organic light-emitting transistors: optoelectronic properties and electron injection mechanism	C. Santato, R. Capelli, M.A. Loi, M. Murgia, F. Cicoira, V.A.L. Roy, P. Stallinga, R. Zamboni, C. Rost, S.F. Karg, and M. Muccini	Synthetic Metals 146, 329 (2004)	1.278
Bias-Induced threshold voltages shift in thin-film organic transistors	H.L. Gomes, P. Stallinga, F. Dinelli, M. Murgia, F. Biscarini, D.M. De Leeuw, T. Muck, J. Geurts, L.W. Molenkamp, V. Wagner	Appl. Phys. Lett. 84, 3184 (2004)	4.308
Electronic transport in field-effect transistors of sexithiophene	P. Stallinga, H.L. Gomes, F. Biscarini, M. Murgia, D.M. de Leeuw	J. Appl. Phys. 96, 5277 (2004)	2.255
Silicon vacancy containing two hydrogen atoms studied with electron paramagnetic resonance and infrared absorption spectroscopy	P. Johannesen, R. Jakobsen, P. Stallinga, B.B. Nielsen, J.R. Byberg	Phys. Rev. B 66, 235201 (2002)	3.075
Interface state mapping in a Schottky barrier of the organic semiconductor terrylene	P. Stallinga, H.L. Gomes, M. Murgia, K. Müllen	Org. Electr. 3, 43 (2002)	3.636
Minority-carrier effects in poly-phenylenevinylene as studied by electrical characterization	P. Stallinga, H.L. Gomes, H. Rost, A.B. Holmes, M.G. Harrison, and R.H. Friend	J. Appl. Phys. 89, 1713 (2001)	2.255
Analysis of deep levels in a phenylenevinylene polymer by transient capacitance methods	H.L. Gomes, P. Stallinga, H. Rost, A.B. Holmes, M.G. Harrison, and R.H. Friend	Appl. Phys. Lett. 74, 1144 (1999)	4.308
Electron Paramagnetic Resonance Study of Hydrogen-Vacancy Defects in Crystalline Silicon	P. Stallinga, P. Johannesen, S. Herstrøm, K. Bonde Nielsen, B. Bech Nielsen, and J. R. Byberg	Phys. Rev. B 58, 3842 (1998)	3.075
Origin of the Magnetic Circular Dichroism of Absorption of the Arsenic Antisite in GaAs and Al_xGa_1-xAs	A. Prasad, P. Stallinga, X. Liu, E.R. Weber	Rapid Comm. of Phys. Rev. B 57, R4214 (1998)	3.075
Comment on "Microscopic Identification and Electronic Structure of a Di-Hydrogen-Vacancy Complex in Silicon by Optical Detection of Magnetic Resonance"	P. Stallinga, B.B. Nielsen	Phys. Rev. Lett. 80, 422 (1998)	7.218
Identification of the Silicon Vacancy Containing a Single Hydrogen Atom by EPR	B.B. Nielsen, P. Johannesen, P. Stallinga, K.B. Nielsen, and J.R. Byberg	Phys. Rev. Lett. 79, 1507 (1997)	7.218
Electron-paramagnetic-resonance Study of Se-Doped AlSb: Evidence for Negative-U of the DX Center	P. Stallinga, W. Walukiewicz, E.R. Weber, P. Becla, and J. Lagowski	Rapid Comm. of Phys. Rev. B 52, R8609 (1995)	3.075
Investigation Of Selected Paramagnetic Centers In Semiconductors	Peter Stallinga	Thesis, University of Amsterdam 1994	-
Electron Paramagnetic Resonance of Molecular Hydrogen in Silicon	P. Stallinga, T. Gregorkiewicz, C.A.J. Ammerlaan, and Yu.V. Gorelkinskii	Phys. Rev. Lett. 71, 117 (1993)	7.218
Electron Paramagnetic Resonance Study of the NL51 Spectrum in Hydrogen Implanted Silicon	P. Stallinga, T. Gregorkiewicz, C.A.J. Ammerlaan, and Yu.V. Gorelkinskii	Solid State Commun. 90, 401 (1994)	1.523
	K.L. Brower, S.M. Myers, A.H. Edwards, N.M. Johnson, P. Stallinga, T. Gregorkiewicz, and C.A.J. Ammerlaan	Phys. Rev. Lett. 73, 1456 (1994)	7.218
Magnetic Resonance Study of Tellurium-Doped Al_xGa_1-xAs	M. Surma, Z.R..Żytkiewicz, K. Fronc, P. Stallinga, and M. Godlewski	Phys. Rev. B 50, 2645 (1994)	3.075

* Impact Factor source: "Web of Knowledge, Journal Citation Reports" visited May 2006-March 2008.

Refereed publications related to conferences.

Title	Conference	Authors	Reference	Impact Factor*	pdf
Photocapacitance measurements in irradiated a-Si:H based detectors	ICANS-22	R. Schwarz, U. Mardolcar, Y. Vygranenko, M. Vieira, C. Casteleiro, P. Stallinga, H. Gomes	J. Non-Crystalline Solids 354, 2176 (2008)	1.264
Spatially-Resolved Photocapacitance Measurements to Study Defects in a-Si:H Based p-i-n Particle Detectors	E-MRS, Strasbourg 2006	C. Casteleiro, R. Schwarz, A. Maçarico, J. Martins, M. Vieira, F. Wuensch, M. Kunst, E. Morgado, P. Stallinga, H. Gomes	Thin Solid Films 516, 5118 (2008)	1.666
The effect of water related traps on the reliability of organic based transistors		H.L. Gomes, P. Stallinga, M. Cölle, F. Biscarini, and D.M. de Leeuw	J. Non-Crystalline Solids 352, 1761 (2006)	1.264
Organic Materials for Active Layers in Transistors: Study of the Electrical Stability Properties	Materiais 2005, Aveiro 2005	H.L. Gomes, P. Stallinga, and D.M. de Leeuw	Mater. Sci. Forum 514-516, 33 (2006)	0.498
Light-emitting thin-film field-effect transistors	invited talk at ASpect 2, Warsaw	P. Stallinga, H.L. Gomes	Optica Applicata 36, 373 (2006)	0.308
Meta-stability effects in organic based transistors	SPIE, Optics and Photonics 2005, San Diego (USA)	H.L. Gomes, P. Stallinga, M. Murgia, F. Biscarini, T. Muck, V. Wagner, E. Smits, D.M. de Leeuw	SPIE Int. Soc. Opt. Eng. vol. #5940-20		(CamReady)
Meta-stability effects in organic based transistors	Technologies for Polymer Electronics TPE04, Rudolstadt 2004	H L. Gomes, P. Stallinga, F. Dinnelli, M. Murgia, F. Biscarini, D.M. De Leeuw	Proceedings of the Intern. Symposium "Technologies of Polymer Electronics TPE 04", Rudolstadt/Germany, 28.-30.09.2004, p. 105-110
Explanation of the Meyer-Neldel rule	Technologies for Polymer Electronics TPE04, Rudolstadt 2004.	P. Stallinga and H.L. Gomes	Proceedings of the Intern. Symposium "Technologies of Polymer Electronics TPE 04", Rudolstadt/Germany, 28.-30.09.2004, p. 125-129
A microelectrode impedance method to measure interaction of cells	IEEE Sensors 2004, Vienna, 2004	H.L. Gomes, R.B. Leite, R. Afonso, P. Stallinga and M.L. Cancela	Proceedings of IEEE Sensors 2004, Vienna, p. 1011-1013 (2004)
Detection of explosive vapors using organic thin-film transistors	IEEE Sensors 2004, Vienna, 2004	E. Bentes, H.L. Gomes, P. Stallinga	Proceedings of IEEE Sensors 2004, Vienna, p. 766-769 (2004)
TNT sensor using organic thin film transistors	8th Portuguese-Spanish Congress in Electrical Engineering (2003)	E. Bentes, R. Luis, H.L. Gomes, P. Stallinga, L. Moura	8th Portuguese-Spanish Congress in Electrical Engineering (2003), 8CLEEE
Electrical characterization of organic-based transistors: stability issues	invited talk at PAT conference, Forth Lauderdale, USA, 2003.	H.L. Gomes, P. Stallinga, F. Dinelli, M. Murgia, F. Biscarini, D.M. de Leeuw, M. Muccini, K. Müllen	Polymers for Adv. Technol. 16, 227 (2005)	1.083
Electrical characterization of pn-junctions of PPV and silicon	ICSM, Gastein, Austria	P. Stallinga, H.L. Gomes, A. Charas, J. Morgado, and L. Alcácer	Synth. Metals 121, 1535 (2001)	1.278
Electrical characterization of CVD diamond-n+silicon junctions	Diamond and Related Materials, Pargue 2001	A.M. Rodrigues, H.L. Gomes, P. Stallinga, L. Pereira, E. Pereira	Diamond and Related Materials 10, 858 (2001)	1.670
Determination of deep and shallow levels in conjugated polymers by electrical methods	ICDS, Berkeley, California 1999	P. Stallinga, H.L. Gomes, H. Rost, A.B. Holmes, M.G. Harrison, R.H. Friend, F. Biscarini, C. Taliani, G.W. Jones, D.M. Taylor	Physica B 273-274, 923 (1999)	0.679
Electronic levels in MEH-PPV	ICEL-2, Sheffield, England	P. Stallinga, H.L. Gomes, H. Rost, A.B. Holmes, M.G. Harrison, and R.H. Friend,	Synthetic Metals 111, 535 (2000)	1.278
Electrical Study of Impurity States in Conjugated Polymers	ICSM, Montpellier, France	P. Stallinga, H.L. Gomes, G.W. Jones and D.M. Taylor	Synthetic Metals 101, 496 (1999)	1.278
Electrical Characterization of Semiconducting Polymers	Jaszowiecz XXVII, Poland	P. Stallinga, H.L. Gomes, G.W. Jones, and D.M. Taylor	Acta Phys. Pol. A 94, 545 (1998)	0.495
A Study of the Di-Hydrogen-Monovacancy defect in Silicon	Jaszowiecz XXVI, Poland	P. Stallinga and B.B. Nielsen	Acta Phys. Pol. A 92, 989 (1997)	0.495
Identification of VH in Silicon by EPR	ICDS 19, Aveiro 1997	P. Johannesen, J.R. Byberg, Brian Bech Nielsen, Peter Stallinga, and K. Bonde Nielsen	Mater. Sci. Forum 258-263, 515 (1997)	0.498
Electron Paramagnetic Resonance Study of Hydrogen-Implanted Silicon	ICPS 23, Berlin 1996	P. Stallinga, P. Johannesen, B.B. Nielsen, K.B. Nielsen, and J.R. Byberg	Proceedings p. 2589 (World Scientific, Singapore 1996)		coming soon
Magnetic Circular Dichroism of Low-Temperature-Grown Al_xGa_1-xAs	MRS Spring, San Francisco 1995	A. Prasad, X. Liu, P. Stallinga, E.R. Weber, A.K. Verma, and J.S. Smith	Mater. Res. Soc. Symp. Proc. 378, 207 (1995)
Electron-paramagnetic-resonance Study of Se-Doped AlSb: Evidence for Negative-U of the DX Center	Jaszowiec XXIV, Poland 1995	P. Stallinga, W. Walukiewicz, E.R. Weber, P. Becla, and J. Lagowski	Acta Phys. Pol. A 88, 1043 (1995)	0.495
Investigation of a Possible Relation Between the Silicon-Interface Pb and Molecular Hydrogen	ICPS 22, Vancouver 1994	P. Stallinga, T. Gregorkiewicz, and C.A.J. Ammerlaan	Proceedings 3, 2235 (1994)		coming soon
EPR Identification of Hydrogen Molecules in Bulk Silicon	invited talk at ICDS 17, Gmunden 1993	P. Stallinga, T. Gregorkiewicz, C.A.J. Ammerlaan, and Yu.V. Gorelkinskii	Mater. Sci. Forum 143-147, 853 (1994)	0.498
Trapping of Molecular Hydrogen in Porous Silicon and at Si/SiO₂ Interfaces and a possible reinterpretation of the P_b Center	MRS Fall, Boston 1993	Peter Stallinga, T. Gregorkiewicz, and C.A.J. Ammerlaan	Mat. Res. Soc. Symp. Proc. 324, 385 (1994)
Photo-ESR Study of the DX Shallow Donor Conversion in Te Doped Al_xGa_1-xAs	Jaszowiec XXIII, Poland	M. Surma, Z.R. Żytkiewicz, K. Fronc, P. Stallinga, and M. Godlewski	Acta Physica Polonica A 84, 757 (1993)	0.495
Electron Paramagnetic Resonance Study of New Centers in SiC	European MRS, Strasbourg	P. Stallinga, T. Gregorkiewicz, and C.A.J. Ammerlaan	Materials Science and Engineering B 11, 35 (1992)	0.924

* Impact Factor source: "Web of Knowledge, Journal Citation Reports" visited May 2006.

Projects

I am or was involved in the following projects (bold: P.I. [project leader/manager])

Acronym	Title	Participants	Grant	Official Pages (1)
SELOA	"Synthetic Electroactive Organic Architectures"	CNR Bologna Univ. Cambridge Univ. Durham Univ. Eindhoven Univ. Algarve Univ. Linköping Univ. Marburg Univ. Bergen/Mons-Hainaut Univ. Pau CNRS Thiais	ERB-FMRX-CT96-0083 (fourth framework)
MONA-LISA	"Development of novel conjugated molecular nano-structures by lithography and their transport scaling aspects"	CNR Bologna Univ. Thiais Univ. Wuppertal Univ. Würzburg IMM Madrid Philips Research Eindhoven Univ. Łódz Univ. Banska Bystrica	G5RD-CT-2000-00349 (fifth framework)
BIO-FET	"Field effect transistor array for monitoring electrical activity from single cells in culture"	CEOT Faro, CCMar Faro, IT Lisboa, Physics Aveiro	POCTI/34688/FIS/2000
Electronic Nose	"TNT sensors based in conjugated polymers", Sensores de polímeros semicondutores para a detecção de moléculas contendo TNT	Univ. Glasgow Univ. Cambridge	O Programa de Investigação e Desenvolvimento - Oceano e as Suas Margens - é financiado pelo Ministério da Defesa (Direcção-Geral de Armamento e Equipamentos da Defesa) e administrado pela FUP.
	"Photo-voltaic cells based on conducting polymers and anthocyanins"	IST Lisboa Univ. Algarve	POCI/CTM/58767/2004
	"Materials for organic electronics ÑÊOFETs"	IT Lisboa ITN Lisboa IST Lisboa Univ. Algarve	POCTI/CTM/41117/2001
M-SiC	"Radiation hardness of Microcrystalline SiC strip detectors"	ISEL Lisboa IST Lisboa Prof. Reinhard Schwartz CERN (ch)	POCTI/ESE/43763/2002
	“Trap levels in organic semiconductors”	Univ. Algarve	POCTI/FAT/47956
DevCOM	"Device Characterization of Organic Materials"	Univ. Algarve	PTDC/FIS/65319

Note: (1): A connection to the internet will be established.

Unreferereed publications of interest

"Electrical Characterization of Organic Semiconductors", Peter Stallinga, 2000. Hand-out for the SELOA Summer School:.

"Theory of (organic) (thin film) Field-Effect Transistors", Peter Stallinga, 2004.

"MCD for dummies", Peter Stallinga, Berkeley 1995. (An explanation of the measurement technique of Magnetic Circular Dichroism of Absorption)

14^o Congresso Nacional de Bioquímico, Vilamoura (pt), December 2004, J. Encarnação, H. Gomes, P. Stallinga, G.N.M. Ferreira,

"Carta do Leitor", Auto Hoje 849, 39 (2006)

Presentations given while working at UAlg

Date and venue	Description	ppt	poster	abstr. (accepted)	article
Amsterdam (nl), August 2000	Visit to group of Dr. T. Gregorkiewicz, University of Amsterdam
Faro (pt), February 2005	CEOT presentation
Linköping (s), 1999	Conference ECME (European Conference on Molecular Electronics) 1999
Rolduc (nl), 2001	Conference ECME 2001
	Conference ECME 2003
Bologna (i), 2005	Conference ECME 2005
Faro (pt), October 2003	Seminar Departamento de Engenharia Electrónica e Informática 2003
Gdańsk (pl), January 2001	Visit to group of Prof. Dr. Godlewski, University of Gdańsk
Montpellier (f), 2000	Conference ICSM 2000
Sheffield (gb)	Conference ICEL 2
Lisboa (pt), 2003	Visit to Prof. Dr. J. Morgado and Prof. Dr. L. Alcácer
Lisboa (pt), April 2005	3rd Workshop Luminescent Conjugated Polymers
Aveiro (pt), March 2005	Conference Materiais 2005
Faro (pt), June 2001	First MONA-LISA meeting
Madrid (e), December 2001	Second MONA-LISA meeting
Bologna (i), December 2003	Final MONA-LISA meeting
Eindhoven (nl), June 2002	MONA-LISA midterm meeting
Wuppertal (d), January 2003	Fourth MONA-LISA meeting
Bologna (i), May 2000	SELOA Summer School note: a manual was written for the school, "Electrical Characterization of Organic Semiconductors". This was distributed at the school and was also placed on-line (http://www.ualg.pt/fct/adeec/optoel/theory). It is also placed as an attachment of this document. . Later an FET version was added. .
Rudolstadt (d), September 2004	Conference Technolgies for Polymer Electronics 2004 (TPE04).
Vienna (au), October 2004	Conference IEEE Sensors
Würzburg (d), July 2003	Fifth MONA-LISA meeting
Bologna, July-August 2003	Research Visit, Discussions
Lisboa, February 2005	Visit to Prof. Pedro Conde of Insituto Superior Técnico (IST). For talk slides of IEEE Sensors talk used.
Amsterdam (nl), June 2005	Visit to group of Dr. T. Gregorkiewicz, University of Amsterdam
Bologna (i), July 2005	Visit to group of Dr. M. Muccini, CNR, Bologna
Kazimierz Dolny (pl), October 2005	Invited talk at 2^nd conference ASPECT (Advanced Spectroscopy)
Dublin (ie), July 2006	Conference ICSM 1 Oral presentation, 2 posters 1 poster not first author
Florianópolis (br), October 2006	Conference SBP-Mat 2006
Hong Kong (hk), January 2007	Workshop, invited talk
Strasbourg (fr), May 2008	Conference E-MRS, oral presentation
CEOT	Cutting photons for photovoltaic applications “SSQC”
Renewable Energies seminar UAlg	Cutting photons for photovoltaic applications “SSQC” / The Global Warming Lie.
CEOT	Presentation of the book "Electrical Characterization of Organic Electronic Materials and Devices"
Faro, secondary school	Presentation of the book "De Mythe van Klimaatsveranderingen"

4. Pedagogic Activity

Summary
I started with a teaching load of 12 hours per week in the first year. This is quite heavy, especially for someone that has to learn the language and the topic. On average, an hour of theoretical classes takes about 3 hours more in preparation and an hour of practical classes about 1 hour more. Responsibility for a discipline, especially those with a large number of students consumes a lot of time too. This, of course, all depends on the quality of the lectures. In general, it can be said that any preparation in electronic format doubles the time spent. This applies to all the types of documentation, also, for instance, the administration around the lectures.
A lecture load of 12 hours means that it is a full job and doesn't leave any time for science. Only after some years, when a stable position has been won at the department with respect to the DSD (distribution of services of docents), a little more time was liberated for science.
However, preparing the lectures well gives more peace of mind when talking in Portuguese in front of a class. Moreover, students at a university deserve high quality lectures. Also, lectures well prepared gives less work in following years. This shows once more the importance of having a stable DSD for the quality of education. I always prepared my lectures in the best possible way. Add to this the fact that "knowledge should not only be hunted for the love of knowing, but also to share it with your own brothers" (Umberto Eco in The Island of the Previous Day). My background is in Physics, but I am employed in the department of Electronics and Informatics. For informatics I already had a reasonable knowledge (studied Experimental Physics, Informatics branch in Amsterdam), but especially for Electronics I had to study a lot to reach a university level.
Up to this point I have given 6 different disciplines (7 when considering the months of lecturing in Electronics I in a semester that changed halfway). Of those disciplines, four of them were my responsibility. For these disciplines, namely Introduction to Computing (Introdução à Computação), Programming I (Programação I, later renamed Imperative Programming, Programação Imperativa), Electronics II (Electrónica II), Physics of Electronic Components (Fundamentos de Componentes Electrónicos) and Electronic Instrumentation (Instrumentação Electrónica) I wrote the lecture notes ("sebenta") and exercises. The last one is currently written up into a book to be published by Wiley. The first two are in HTML format for easy access of the students studying at home and in the classroom. All the lectures notes were made available on-line not only to the university students but to everybody in the world, since I am a big fan of the MIT idea of Open Courseware. All this can be found in the annex or following the links in the table below. For the informatics theoretical lectures, initially transparencies were used. For the other lectures, the blackboard was used. In more recent years datashows arrived at the university. Powerpoint presentations were prepared by me for the informatics lectures, see the links below (to save paper, these are not included in the hardcopy of this document).

I guided two students of the course of Informatics Teaching (Ensino de Informática) and evaluated them when they were doing their stage on a secondary school in Odemira. This involved going to the school and sitting-in at their lectures and determining their (scientific) quality. In this way I got an idea about the educational system of Portugal.

Finally, it is worth mentioning that on-line educational software was written that simulates complicated physical ideas of electronic components. For compatibility reasons, these simulations were written in Java applets and were embedded into HTML pages. Click on the icon Java or follow this link to see the simulations: http://www.ualg.pt/fct/adeec/optoel/Java/index.html. On the CD it can be found here.

Schedule of Lectures in the UAlg

Semester	Disciplines lectured⁽¹⁾⁽²⁾	hours per week ⁽³⁾	students⁽⁴⁾
1989-1990	ExpPhys,: Experimental Physics Labs (University of Amsterdam)	12	16
1999-2000, 2nd semester	INS: Instrumentation (Instrumentação): 2xP EL2: Electronics II (Electrónica II): 2xP	6 6	34 19
2000-2001, 1st semester	EL1: Electronics I (Electrónica I): 1xTP EL3: Electronics III (Electrónica III): 2xP, 1xTP	1.5 7.5	25
2000-2001, 2nd semester	IC: Introduction to Computing (Introdução à Computação): 2xP EL2: Electronics II (Electrónica II): 2xP	6 6	35
2001-2002, 1st semester	EL3: Electronics III (Electrónica III): 1xP P1: Programming I (Programação I): 1xP	3 3	23
2001-2002, 2nd semester	IC: Introduction to Computing (Introdução à Computação): 4xT, 1xP E2: Electronics II (Electrónica II): 1xP	7 3	177 9
2002-2003, 1st semester	EL3: Electronics III (Electrónica III): 2xP P1: Programming 1 (Progamação 1): 1xT Final year project	6 1 0.5	21 101 2
2002-2003, 2nd semester	IC: Introduction to Computing (Introdução à Computação): 2xT FCE: Physics of Electronic Components (Fundamentos de Componentes Electrónicos): 2xT, 1xP Final year project	2 5 0.5	142 9 2
2003-2004, 1st semester	PI: Imperative Programming (Programação Imperativa): 2xT, 1xP E2: Electronics II (Electrónica II): 1xP Estagio: students of Informatics Teaching in Odemira (Alentejo)	5 3 1	74 5 2
2003-2004, 2nd semester	IC: Introduction to Computing (Introdução à Computação): 2xT, 2xP Estagio: students of Informatics Teaching in Odemira (Alentejo)	8 1	125 2
2004-2005, 1st semester	PI: Imperative Programming (Programação Imperativa): 4xT, 1xP E2: Electronics II (Electrónica II) 2xT, 1xP	7 5	191 35
2004-2005, 2nd semester	IC: Introduction to Computing (Introdução à Computação): 2xT, 1xP	5	122
2005-2006, 1st semester	PI: Imperative Programming (Programação Imperativa): 4xT, 1xP E2: Electronics II (Electrónica II) 2xT, 1xP	7 5	175 39
2005-2006, 2nd semester	IC: Introduction to Computing (Introdução à Computação): 2xT, 3xP	11	136
2006-2007, 1st semester	E2: Electronics II (Electrónica II): 2xT, 1xP INS: Instrumentation (Instrumentação): 2xT, 1xP	5 5	38 4
2006-2007, 2nd semester	sabbatical leave	0
Module	Disciplines lectured⁽¹⁾⁽²⁾	contact hours ⁽³⁾	students ⁽⁴⁾
2007-2008, blocks 1-3	sabbatical leave	0
2007-2008, block 6/6	INS: Instrumentation (Instrumentação / Instrumentação Electrónica): 2xT, 2xP, 1xTP	106	40
2008-2009, block 3/6 2008-2009, block 5/6	E2: Electronics II (Electrónica II): 2xT, 2xP, 1xTP INS: Instrumentation (Instrumentação / Instrumentação Electrónica): 2xT, 2xP, 1xTP	73 106	27 38
2009-1010, block 1/4 2009-1010, block 1/4 2009-1010, block 2/4	E2: Electronics II (Electrónica II): 2xT, 1xP, 1xTP IALP: Introduction to laboratory and programming (Introdução à Actividade Laboratorial e à Programação): 2xP INS: Electronic Instrumentation (Instrumentação Electrónica): 2xT, 1xP, 1xTP	73 55 106	8 57 20

notes:
(1) bold: responsibility for the discipline
(2) T = 1 hour theory, P = 3 hours practical, TP = 1.5 hours exercises
(3) Total hours on semester basis. After 2007 the lectures were given in blocks In that case the numbers represent the lecture load in hours. It should be dvidided by 15 to get the semestral lecture load.
(4) italics: number of students in my groups.

Documents prepared related to lectures

Discipline	Lecture Notes (Sebenta)	Exercises	Slides	Exams and homeworks
Introduction to Computing Introdução à Computação	on-line: portuguese: english:	see Sebenta
Programming I / Imperative Programming Programação I / Programação Imperativa	on-line: portuguese: english:	see Sebenta
Physics of Electronic Components Fundamentos de Componentes Electrónicos			(1)
Electronics II Electrónica II	english: portuguese:	(2)	(1)
Electronic Instrumentation Instrumentação Electrónica			(1)

Notes
(1): Powerpoint not the best medium for these lectures.
(2): Lectures without classes with exercisises (TP). Exercises are of practical lessons (P).

Other pedagogic activities
Final Year Projects:
José Almada and Nelson Pimenta, Final-year project of ESC named "Measuring FET parameters as a function of frequency" (Parâmetros de FET's em Função de Frequência), 4 November 2003.
Diogo Emanuel de Moura Lobo and Carlos Miguel Fernandes Dias, Final-year project of ESI named "Implementation of QCM mesaurement system", 2005-2006.
In 2005, a student from Ryszard Łazarski University of Commerce and Law visited me to do a one month stage in OptoEl.
(Co)Supervisor of PhD student, João Encarnação, "Development of biosensors for the malaria setting", SFRH/BD/12772/2003. Graduated January 2008.
Supervisor Starting Investigator (BIC) André Romão, 2005.

In 2000, I was invited to give lectures at the SELOA Summer School in Bologna. The details of the lecture and the link to the handouts are
"Electrical Characterization of Organic Semiconductors", Peter Stallinga, 2000.

Later an additional document in the same style was added:
"Theory of (organic) (thin film) Field-Effect Transistors", Peter Stallinga, 2004.

5. Administrative Activity

Vice Course Director (Subdirector de Curso) of the course LESI (Licenciatura de Engenharia de Sistemas e Informática, formerly known as ESC, Engenharia de Sistemas e Computação).
While being vice deacon of ESC/LESI, I helped in the organization of the department, for instance in the open days and other forms of advertising our courses. Examples are the design of the brochures for LESI in 2004 and 2005, see attachments

and

.
Course Director (Director de Curso) of the course LESI in 2006.

Organisation of the books. For the past years, I was responsible for the organization of the acquisition of new books for the department.

Cientific Councils. As any other doctorate member I participated in the departments administrative bodies of the Scientific Council (Conselho Cietífico) of the department DEEI and the faculty FCT. I attended most of the meetings to which he was invited.

Network meeting organizer. Helping organizing network meetings for SELOA and MONA-LISA (2001). Twice the European network held a meeting in Faro. First the SELOA network and later the MONA-LISA network.

6. Graphical Design

Finally, work that doesn't fit in the catagories above (scientic, pedagogic or administrative), but which is worth mentioning is the CAD (computer-aided design). I designed the logos of the Opto-Electronics and Organic-Electronics laboratories as well as the CEOT research center:

	Opto-El. logo was designed in 1997 and is based on the logo of The University of The Algarve (see in the beginning on the right of this document). The Univeristy logo with its excentric circles symbolizes the spreading of knowledge in the direct area of the university, namely The Algarve. The Opto-El logo incorporates the university logo which represents that Opto-El wholeheartedly supports the idealogy of the university. The electronic components added to the University logo represent the electronic nature of the laboratory. Moreover, the FET, in series with an LED and ground symbolize that "While we have everything under control, we are brilliant, but remain with our feet on the ground". The resulting mono-chrome image is very modern and is also good when printed in black and white or in inverse colors. The disadvantage is that it is a little too detailed and as such doesn't follow modern design conventions, which favors simpler designs. Moreover, the lines of the electronic paths are too thick. The logo was designed with the PjotrSoft (Peter Stallinga) PASCAL graphics toolbox (EPSTool) with output in (Encapsulated) PostScript.
	The CEOT logo was designed at the onset of the research center, in 2001. The three facets of the cube represent the three legs of the research center, namely Electronics, Opto-electronics and Tele-communications. Later, in practice, the legs have integrated and the edges have blurred. The sphere with the C, in comparison to the cube being of different geometric shape, symbolizes that were are not uniformist and can approach a problem in many ways and shows the strength of the research center. The combination of the sphere and especially the cube gives the logo a three dimensional character and, adding to this, the pastel colors gives it a pleasant look. Moreover, the logo lends itself very well to manipulations in the modern informatics world (read internet pages), see for instance the CEOT pages, but is less adequate for black-and-white representations. For this purpose (hardcopy commucations) a mono-chrome version was designed contemporarily. The logo was designed with Corel Draw 8 (due to font incompatibilities in the Corel Draw versions, it is no longer readible in version 10).
	The OrgEl logo was designed in 2009 and once again it is based on the University logo of the four excentric circles. The idea was to use the same 'atmosphere' of the rings that can be seen as the letter 'O' and use the same style to write a letter 'E', thus forming a acronym OE. The logo was designed using EPSTool with output in (Encapsulated) PostScript.

Faro, April 2010
e-mail at ualg.pt: pjotr