Libero Zuppiroli
Expertise
Optoelectronics in molecular materials
Hybrid polymer films for photonics
Self-assembled monolayers
Charge transport theories in organic semiconductors
Mission
The Laboratory of Optoelectronics of Molecular Materials (LOMM) is active in the fields of "plastic electronics", and hybrid polymer films for photonics. Consequently our work is at the interface between physics and chemistry, at the interface between theory and experiments, and at the interface between basic science and industrial applications.
LOMM has developed major expertise in the fabrication and the device physics of organic light emitting diodes (OLEDs), organic field effect transistors (OFETs) and color changing films for lighting applications. A particular research effort is dedicated to self-assembled monolayers (SAMs) and dipolar surface layers. The LOMM has developed a strategy, which uses SAMs to engineer optoelectronic device electrodes.
Much effort is dedicated to theoretical research, which is directed towards the microscopic understanding of charge transport and charge injection in molecular materials. New algorithms have been developed extensively at LOMM to model optoelectronic devices.
Education:
Telecommunications Engineer ,Paris, 1969
Doctorate in Solid State Physics, Orsay, 1976
Experience:
1990-Present: Professor in Material Physics at EPFL
1985-1990: Associate Professor at Ecole Polytechnique of France.
1977-1985: Research Associate at Commissariat à l'énergie atomique (France)
Publications représentatives
Quantum yield measurement of fluorescent zeolite nanopigments
Nicolet, O., Huber, S., Lovey, C., Chappellet, S., Perrenoud, J., Pauchard, M., Ferrini, R. and Zuppiroli, L.
Published in Advanced Functional Materials, 19 pp. 1877 (2009) in
Traité de la lumière
Zuppiroli, L., Bussac, M.-N. and Grimm, C.
Published in Lausanne : Presses Polytechniques et Universitaires Romandes, 2009. in
Local infiltration of planar photonic crystals with UV-curable polymers
El-Kallassi, P., Balog, S., Houdré, R., Balet, L., Li, L., Francardi, M., Gerardino, A., Fiore, A., Ferrini, R. and Zuppiroli, L.
Published in Journal of the Optical Society of America B, 25(10) pp. 1562. in
Charge transport mechanisms in microcrystalline silicon
Konezny, S.J., Bussac, M.N. and Zuppiroli, L
Published in Applied Physics Letters, 92, (2008) pp. 012107-1 - 3. in
Le traité des couleurs de Goethe et la science d'hier et d'aujourd'hui
Zuppiroli, L.
Published in Book Chapter, Nord-Pas-de-Calais, France : La Maison d'à côté, 2008. in
Optical tuning of planar photonic crystals infiltrated with organic molecules
El-Kallassi, P., Ferrini, R., Zuppiroli, L., Le Thomas, N., Houdré, R., Berrier, A., Anand, S. and Talneau, A.
Published in Journal of the Optical Society of America B, 24(9) pp. 2165 (2007). in
Quantum coherence and carriers mobility in organic semiconductors
Picon, J.D., Bussac, M.N. and Zuppiroli, L.
Published in Physical Review B, 75 pp. 235106 (2007). in
Thermopower measurements on pentacene transistors
von Mühlenen, A., Errien, N., Schaer, M., Bussac, M.N. and Zuppiroli, L.
Published in Physical Review B, 75(11) pp. 115338 (2007) in
On the origin of exciton formation in dye doped Alq(3) OLEDs
Applied Physics A-Materials Science & Processing. 2012. DOI : 10.1007/s00339-012-6957-8.The effects of channel length and film microstructure on the performance of pentacene transistors
Organic Electronics. 2011. DOI : 10.1016/j.orgel.2010.12.004.Low-loss polymer waveguides on nanoporous layers
Applied Physics Letters. 2011. DOI : 10.1063/1.3647624.Organic thin-film transistors: the passivation of the dielectric-pentacene interface by dipolar self-assembled monolayers
Langmuir. 2010. DOI : 10.1021/la102060u.Nanoporous films with low refractive index for large-surface broad-band anti-reflection coatings
Macromolecular Materials and Engineering. 2010. DOI : 10.1002/mame.201000045.Fluorescent nanopigments: Quantitative assessment of their quantum yield
Journal of Applied Physics. 2010. DOI : 10.1063/1.3387891.Couches minces nanoporeuses pour la réalisation de dispositifs optiques
Lausanne, EPFL, 2010. DOI : 10.5075/epfl-thesis-4865.Hopping and trapping mechanisms in organic field-effect transistors
Physical Review B. 2010. DOI : 10.1103/PhysRevB.81.045313.The Effect of Interface Modification on the Properties of Organic Thin-Film Transistors
Lausanne, EPFL, 2010. DOI : 10.5075/epfl-thesis-4885.Magnetic field effects on the conductivity of organic bipolar and unipolar devices at room temperature
Synthetic Metals. 2010. DOI : 10.1016/j.synthmet.2009.11.020.From oxide surface to organic transistor properties: the nature and the role of oxide gate surface defects
Journal of Physical Chemistry C. 2010. DOI : 10.1021/jp911167h.Quantum Yield Measurement of Fluorescent Zeolite Nanopigments
Advanced Functional Materials. 2009. DOI : 10.1002/adfm.200801421.Traité de la lumière
Lausanne: Presses Polytechniques et Universitaires Romandes, 2009.An ester-substituted iridium complex for efficient vacuum-processed organic light-emitting diodes
ChemSusChem. 2009. DOI : 10.1002/cssc.200800220.Accordabilité de la réponse optique des cristaux photoniques par infiltration de matériaux organiques
Lausanne, EPFL, 2009. DOI : 10.5075/epfl-thesis-4343.Trap-limited transport in rubrene transistors
Applied Physics Letters. 2009. DOI : 10.1063/1.3276693.Hybrid inorganic-organic photonic devices
2008. European Optical Society Annual Meeting 2008 – Topical Meeting on Organic Photonics (EOS - TOM 5), Paris, France, September 29-October 2, 2008.Science et technologie comme auxiliaires d'une nouvelle violence
2008. Lire Hannah Arendt aujourd'hui - Colloque International de Lausanne, Lausanne, May 11-12, 2007.Optisches Element und Verfahren zu seiner Herstellung (Optical element and methods for its fabrication)
CN101673799 ; US8350233 ; US2010102251 ; JP2010066770 ; EP2164302 ; CN101673799 . 2008.Le traité des couleurs de Goethe et la science d'hier et d'aujourd'hui
Le traité des couleurs de Goethe: Voisinages et postérité; Nord-Pas-de-Calais, France: La Maison d'à côté, 2008. p. 7 - 36.Local tuning of the optical response of two-dimensional photonic crystals
2008. 14th European Conference on Integrated Optics (ECIO’08), Eindhoven, The Netherlands, June 11-13, 2008.Sublimation Not an Innocent Technique: A Case of Bis-Cyclometalated Iridium Emitter for OLED
Inorganic Chemistry. 2008. DOI : 10.1021/ic800747t.Controlling charge-transfer at the gate interface of organic field-effect transistors
Physica Status Solidi B-Basic Solid State Physics. 2008. DOI : 10.1002/pssb.200743439.Local infiltration of planar photonic crystals with UV-curable polymers
Journal of the Optical Society of America B. 2008. DOI : 10.1364/JOSAB.25.001562.Charge transport mechanisms in microcrystalline silicon
Applied Physics Letters. 2008. DOI : 10.1063/1.2828991.Thermopower measurements on pentacene transistors
Physical Review B. 2007. DOI : 10.1103/PhysRevB.75.115338.Optical tuning of planar photonic crystals infiltrated with organic molecules
Journal of the Optical Society of America B. 2007. DOI : 10.1364/JOSAB.24.002165.Charge transport mechanisms in organic and microcrystalline silicon field-effect transistors
2007. Conference on Organic Field-Effect Transistors VI, San Diego, CA, Aug 26-28, 2007. p. D6580 - D6580. DOI : 10.1117/12.733811.Quantum coherence and carriers mobility in organic semiconductors
Physical Review B. 2007. DOI : 10.1103/PhysRevB.75.235106.Transistors organiques ultraminces à base de pentacène
Lausanne, EPFL, 2007. DOI : 10.5075/epfl-thesis-3910.Efficient blue light-emitting diodes based on a classical "push-pull" architecture molecule 4,4 prime -di-(2-(2,5- dimethoxyphenyl)ethenyl)-2,2 prime -bipyridine
Journal of Materials Chemistry. 2006. DOI : 10.1039/b610880f.Investigation of the charge transport through disordered organic molecular heterojunctions
Journal of Applied Physics. 2006. DOI : 10.1063/1.2222041.Interface issues in organic semiconductor based devices
Lausanne, EPFL, 2006. DOI : 10.5075/epfl-thesis-3642.De l'effet de la polarisation électronique sur le transport de charge dans les semi-conducteurs moléculaires
Lausanne, EPFL, 2006. DOI : 10.5075/epfl-thesis-3661.Polarization effects in the channel of an organic field-effect transistor
Journal of Applied Physics. 2006. DOI : 10.1063/1.2214363.Cubic and oriented Ag nano-particles by high vacuum evaporation
2006.Liquid crystal infiltration of InP-based planar photonic crystals
Journal of Applied Physics. 2006. DOI : 10.1063/1.2199090.Planar photonic crystals infiltrated with liquid crystals: optical characterization of molecule orientation
Optics Letters. 2006. DOI : 10.1364/OL.31.001238.Approches numériques du transport de charges dans les semiconducteurs organiques
Lausanne, EPFL, 2006. DOI : 10.5075/epfl-thesis-3631.Molecular engineering of iridium complexes and their application in organic light emitting devices
Highly Efficient OLEDs with Phosphorescent Materials; Weinheim: Wiley-VCH, 2006. p. 363 - 390.Charge transport across organic-organic interfaces in organic light-emitting diodes
Synthetic Metals. 2006. DOI : 10.1016/j.synthmet.2006.09.011.L'Université technologique néo-libérale: un service public?
2005.Transport and recombination in organic light-emitting diodes studied by electrically detected magnetic resonance
European Physical Journal E. 2005. DOI : 10.1140/epje/i2005-10026-6.Synthesis of novel cyanine-fullerene dyads for photovoltaic devices
Journal of Materials Chemistry. 2005. DOI : 10.1039/b413557c.Tuning the optical properties of planar photonic crystals by liquid crystal infiltration
2005. DOI : 10.1117/12.614837.Crossover from capacitive to pseudoinductive charge-relaxation in organic/polymeric light-emitting diodes
Applied Physics Letters. 2005. DOI : 10.1063/1.1993770.Insights into OLED functioning through coordinated experimental measurements and numerical model simulations
Physica Status Solidi (a). 2005. DOI : 10.1002/pssa.200406905.Interface modification to optimize charge separation in cyanine heterojunction photovoltaic devices
Solar Energy Materials and Solar Cells. 2005. DOI : 10.1016/j.solmat.2004.07.054.Comparison between nucleation of pentacene monolayer islands on polymeric and inorganic substrates
Physical Review B. 2005. DOI : 10.1103/PhysRevB.72.085211.Doping-induced charge trapping in organic light-emitting devices
Advanced Functional Materials. 2005. DOI : 10.1002/adfm.200305022.Spin dependent transport and recombination in organic light-emitting diodes
Physica Status Solidi C. 2005. DOI : 10.1002/pssc.200461744.Ultrathin organic transistors on oxide surfaces
New Journal of Physics. 2005. DOI : 10.1088/1367-2630/7/1/133.Space charge and polarization effects upon doping organic light-emitting diodes with pyran-containing donor-acceptor molecules
Research on Chemical Intermediates. 2004.Conditions of recombination zone splitting in organic light-emitting diodes
2004. p. 72 - 82. DOI : 10.1117/12.545665.New insights into the functioning of dye-doped OLED's from model simulations
2004.Electronic and structural evidences for charge transfer and localization in iodine-doped pentacene
The Journal of Physical Chemistry A. 2004. DOI : 10.1021/jp048343x.Nucleation and growth of ultrathin pentacene films on silicon dioxide: effect of deposition rate and substrate temperature
Synthetic Metals. 2004. DOI : 10.1016/j.synthmet.2004.08.017.Electrically detected magnetic resonance of organic and polymeric light emitting diodes
2004. 20th International Conference on Amorphous and Microcrystalline Semiconductors (ICAMS 20), Campos do Jordao, 24-29 August 2003. p. 622 - 625. DOI : 10.1016/j.jnoncrysol.2004.03.055.Correlated growth in ultrathin pentacene films on silicon oxide: effect of deposition rate
Physical Review B. 2004. DOI : 10.1103/PhysRevB.69.165201.The mechanism of lifetime extension due to CuPc injection layer in organic light-emitting diodes
2004. p. 330 - 336. DOI : 10.1117/12.545788.The impact of molecular polarization on the electronic properties of molecular semiconductors
Europhysics Letters - European Physical Society Letters (EPL). 2004. DOI : 10.1209/epl/i2003-10218-8.Benzoic and aliphatic carboxylic acid monomolecular layers on oxidized GaAs surface as a tool for two-dimensional photonic crystal infiltration
Langmuir. 2004. DOI : 10.1021/la048515h.Splitting of the recombination zone in organic light emitting diodes by dye doping
Journal of Applied Physics. 2004. DOI : 10.1063/1.1664027.MOLED: simulation of multilayer organic light emitting diodes
Computer Physics Communications. 2003. DOI : 10.1016/S0010-4655(03)00435-1.Internal electric field and charge distribution in multilayer organic light-emitting diodes
Journal Of Applied Physics. 2003. DOI : 10.1063/1.1558208.Solution versus vapor growth of dipolar layers on activated oxide substrates
Langmuir. 2003. DOI : 10.1021/la026962w.Polaron formation and symmetry breaking
Chemical Physics Letters. 2003. DOI : 10.1016/S0009-2614(03)00646-8.Orienting tetracene and pentacene thin films onto friction-transferred poly(tetrafluoroethylene) substrate
The Journal of Physical Chemistry B. 2003. DOI : 10.1021/jp030217q.Cyanine dye acting both as donor and acceptor in heterojunction photovoltaic devices
Applied Physics Letters. 2003. DOI : 10.1063/1.1579133.Highly Phosphorescence Iridium Complexes and their Application in Organic Light-Emitting Devices
Journal of the American Chemical Society. 2003. DOI : 10.1021/ja021413y.Light-Induced Renormalization of the Dirac Quasiparticles in the Nodal-Line Semimetal ZrSiSe
Physical Review Letters. 2020-08-12. DOI : 10.1103/PhysRevLett.125.076401.Solution-Processed Organic Optical Upconversion Device
Acs Applied Materials & Interfaces. 2019-07-03. DOI : 10.1021/acsami.9b06732.Optimized Electrolyte Loading and Active Film Thickness for Sandwich Polymer Light-Emitting Electrochemical Cells
Advanced Optical Materials. 2019-02-01. DOI : 10.1002/adom.201801278.Cyanine tandem and triple-junction solar cells
Organic Electronics. 2016. DOI : 10.1016/j.orgel.2015.12.013.On the origin of exciton formation in dye doped Alq(3) OLEDs
Applied Physics A-Materials Science & Processing. 2012. DOI : 10.1007/s00339-012-6957-8.Low-loss polymer waveguides on nanoporous layers
Applied Physics Letters. 2011. DOI : 10.1063/1.3647624.The effects of channel length and film microstructure on the performance of pentacene transistors
Organic Electronics. 2011. DOI : 10.1016/j.orgel.2010.12.004.Magnetic field effects on the conductivity of organic bipolar and unipolar devices at room temperature
Synthetic Metals. 2010. DOI : 10.1016/j.synthmet.2009.11.020.Organic thin-film transistors: the passivation of the dielectric-pentacene interface by dipolar self-assembled monolayers
Langmuir. 2010. DOI : 10.1021/la102060u.Nanoporous films with low refractive index for large-surface broad-band anti-reflection coatings
Macromolecular Materials and Engineering. 2010. DOI : 10.1002/mame.201000045.Fluorescent nanopigments: Quantitative assessment of their quantum yield
Journal of Applied Physics. 2010. DOI : 10.1063/1.3387891.Les enjeux du remplacement des lampes à incandescence. Des lampes «économiques», mais quelle qualité d’éclairage?
Bulletin Electrosuisse SEV/AES. 2010. DOI : 10.5169/seals-856086.From oxide surface to organic transistor properties: the nature and the role of oxide gate surface defects
Journal of Physical Chemistry C. 2010. DOI : 10.1021/jp911167h.Hopping and trapping mechanisms in organic field-effect transistors
Physical Review B. 2010. DOI : 10.1103/PhysRevB.81.045313.Quantum Yield Measurement of Fluorescent Zeolite Nanopigments
Advanced Functional Materials. 2009. DOI : 10.1002/adfm.200801421.Trap-limited transport in rubrene transistors
Applied Physics Letters. 2009. DOI : 10.1063/1.3276693.Liquid crystals into planar photonic crystals
New developments in liquid crystals; Vukovar, Croatia: In-Tech, 2009. p. 21-48.An ester-substituted iridium complex for efficient vacuum-processed organic light-emitting diodes
ChemSusChem. 2009. DOI : 10.1002/cssc.200800220.Sublimation Not an Innocent Technique: A Case of Bis-Cyclometalated Iridium Emitter for OLED
Inorganic Chemistry. 2008. DOI : 10.1021/ic800747t.Local infiltration of planar photonic crystals with UV-curable polymers
Journal of the Optical Society of America B. 2008. DOI : 10.1364/JOSAB.25.001562.Controlling charge-transfer at the gate interface of organic field-effect transistors
Physica Status Solidi (b). 2008. DOI : 10.1002/pssb.200743439.Impact of feature-size dependent etching on the optical properties of photonic crystal devices
Journal of Applied Physics. 2008. DOI : 10.1063/1.2913168.Charge transport mechanisms in microcrystalline silicon
Applied Physics Letters. 2008. DOI : 10.1063/1.2828991.Competition between excitons and exciplexes: Experiments on multilayered organic light emitting diodes
Journal of Applied Physics. 2007. DOI : 10.1063/1.2757204.Optical tuning of planar photonic crystals infiltrated with organic molecules
Journal of the Optical Society of America B. 2007. DOI : 10.1364/JOSAB.24.002165.Thermopower measurements on pentacene transistors
Physical Review B. 2007. DOI : 10.1103/PhysRevB.75.115338.Quantum coherence and carriers mobility in organic semiconductors
Physical Review B. 2007. DOI : 10.1103/PhysRevB.75.235106.Characterization of the feature-size dependence in Ar/Cl2 chemically assisted ion beam etching of InP-based photonic crystal devices
Journal of Vacuum Science & Technology B (Microelectronics and Nanometer Structures). 2007. DOI : 10.1116/1.2402142.Liquid crystal infiltration of InP-based planar photonic crystals
Journal of Applied Physics. 2006. DOI : 10.1063/1.2199090.Charge transport across organic-organic interfaces in organic light-emitting diodes
Synthetic Metals. 2006. DOI : 10.1016/j.synthmet.2006.09.011.Investigation of the charge transport through disordered organic molecular heterojunctions
Journal of Applied Physics. 2006. DOI : 10.1063/1.2222041.Polarization effects in the channel of an organic field-effect transistor
Journal of Applied Physics. 2006. DOI : 10.1063/1.2214363.Planar photonic crystals infiltrated with liquid crystals: optical characterization of molecule orientation
Optics Letters. 2006. DOI : 10.1364/OL.31.001238.Disorder-induced losses in planar photonic crystals
Optics Letters. 2006. DOI : 10.1364/OL.31.001426.Efficient blue light-emitting diodes based on a classical "push-pull" architecture molecule 4,4 prime -di-(2-(2,5- dimethoxyphenyl)ethenyl)-2,2 prime -bipyridine
Journal of Materials Chemistry. 2006. DOI : 10.1039/b610880f.Erratum: Counterion effects in cyanine heterojunction photovoltaic devices
Journal of Materials Science. 2005. DOI : 10.1007/s10853-005-2415-8.Counterion effects in cyanine heterojunction photovoltaic devices
Journal of Materials Science. 2005. DOI : 10.1007/s10853-005-0564-4.Spin dependent transport and recombination in organic light-emitting diodes
Physica Status Solidi C. 2005. DOI : 10.1002/pssc.200461744.Comparison between nucleation of pentacene monolayer islands on polymeric and inorganic substrates
Physical Review B (Condensed Matter and Materials Physics). 2005. DOI : 10.1103/PhysRevB.72.085211.Interface modification to optimize charge separation in cyanine heterojunction photovoltaic devices
Solar Energy Materials and Solar Cells. 2005. DOI : 10.1016/j.solmat.2004.07.054.Doping-induced charge trapping in organic light-emitting devices
Advanced Functional Materials. 2005. DOI : 10.1002/adfm.200305022.Synthesis of novel cyanine-fullerene dyads for photovoltaic devices
Journal of Materials Chemistry. 2005. DOI : 10.1039/b413557c.Transport and recombination in organic light-emitting diodes studied by electrically detected magnetic resonance
European Physical Journal E. 2005. DOI : 10.1140/epje/i2005-10026-6.Ultrathin organic transistors on oxide surfaces
New Journal of Physics. 2005. DOI : 10.1088/1367-2630/7/1/133.Crossover from capacitive to pseudoinductive charge-relaxation in organic/polymeric light-emitting diodes
Applied Physics Letters. 2005. DOI : 10.1063/1.1993770.Insights into OLED functioning through coordinated experimental measurements and numerical model simulations
Physica Status Solidi A. 2005. DOI : 10.1002/pssa.200406905.Correlated growth in ultrathin pentacene films on silicon oxide: effect of deposition rate
Physical Review B (Condensed Matter and Materials Physics). 2004. DOI : 10.1103/PhysRevB.69.165201.Nucleation and growth of ultrathin pentacene films on silicon dioxide: effect of deposition rate and substrate temperature
Synthetic Metals. 2004. DOI : 10.1016/j.synthmet.2004.08.017.Space charge and polarization effects upon doping organic light-emitting diodes with pyran-containing donor-acceptor molecules
Research on Chemical Intermediates. 2004.Benzoic and aliphatic carboxylic acid monomolecular layers on oxidized GaAs surface as a tool for two-dimensional photonic crystal infiltration
Langmuir. 2004. DOI : 10.1021/la048515h.The impact of molecular polarization on the electronic properties of molecular semiconductors
Europhysics Letters. 2004. DOI : 10.1209/epl/i2003-10218-8.Electronic and structural evidences for charge transfer and localization in iodine-doped pentacene
Journal of Physical Chemistry A. 2004. DOI : 10.1021/jp048343x.Splitting of the recombination zone in organic light emitting diodes by dye doping
Journal of Applied Physics. 2004. DOI : 10.1063/1.1664027.Polaron formation and symmetry breaking
Chemical Physics Letters. 2003. DOI : 10.1016/S0009-2614(03)00646-8.Internal electric field and charge distribution in multilayer organic light-emitting diodes
Journal Of Applied Physics. 2003. DOI : 10.1063/1.1558208.Solution versus vapor growth of dipolar layers on activated oxide substrates
Langmuir. 2003. DOI : 10.1021/la026962w.Does a single zealot affect an infinite group of voters?
Physical Review Letters. 2003. DOI : 10.1103/PhysRevLett.91.028701.Cyanine dye acting both as donor and acceptor in heterojunction photovoltaic devices
Applied Physics Letters. 2003. DOI : 10.1063/1.1579133.MOLED: simulation of multilayer organic light emitting diodes
Computer Physics Communications. 2003. DOI : 10.1016/S0010-4655(03)00435-1.Orienting tetracene and pentacene thin films onto friction-transferred poly(tetrafluoroethylene) substrate
Journal Of Physical Chemistry B. 2003. DOI : 10.1021/jp030217q.Highly Phosphorescence Iridium Complexes and their Application in Organic Light-Emitting Devices
Journal of the American Chemical Society. 2003. DOI : 10.1021/ja021413y.Enseignement et PhD
A dirigé les thèses EPFL de
Silke Buhler-Paschen, Paola Favia, Gabriel Baumgartner, Didier Michoud, Francesco Ubertini, Jean-David Picon, Hocine Houili, Mauro Castellani, Adrian von Mühlenen, Pascale El-Kallassi, Gaëtan Wicht, Franziska Dora Fleischli