Libero Zuppiroli

Professeur honoraire

Domaines de compétences

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.

Biographie

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

Publications Infoscience

Infoscience

On the origin of exciton formation in dye doped Alq(3) OLEDs

J. A. Gomez; F. A. Castro; F. Nueesch; L. Zuppiroli; C. F. O. Graeff

Applied Physics A-Materials Science & Processing. 2012. DOI : 10.1007/s00339-012-6957-8.

Nicolet, O., Huber, S., Lovey, C., Chappellet, S., Perrenoud, J., Pauchard, M., Ferrini, R. and Zuppiroli, L. Advanced Functional Materials, 19 pp. 1877 (2009)	Quantum yield measurement of fluorescent zeolite nanopigments
Zuppiroli, L., Bussac, M.-N. and Grimm, C. Lausanne : Presses Polytechniques et Universitaires Romandes, 2009.	Trait� de la lumi�re
El-Kallassi, P., Balog, S., Houdr�, R., Balet, L., Li, L., Francardi, M., Gerardino, A., Fiore, A., Ferrini, R. and Zuppiroli, L. Journal of the Optical Society of America B, 25(10) pp. 1562.	Local infiltration of planar photonic crystals with UV-curable polymers
Konezny, S.J., Bussac, M.N. and Zuppiroli, L Applied Physics Letters, 92, (2008) pp. 012107-1 - 3.	Charge transport mechanisms in microcrystalline silicon
Zuppiroli, L. Book Chapter, Nord-Pas-de-Calais, France : La Maison d'� c�t�, 2008.	Le trait� des couleurs de Goethe et la science d'hier et d'aujourd'hui
El-Kallassi, P., Ferrini, R., Zuppiroli, L., Le Thomas, N., Houdr�, R., Berrier, A., Anand, S. and Talneau, A. Journal of the Optical Society of America B, 24(9) pp. 2165 (2007).	Optical tuning of planar photonic crystals infiltrated with organic molecules
Picon, J.D., Bussac, M.N. and Zuppiroli, L. Physical Review B, 75 pp. 235106 (2007).	Quantum coherence and carriers mobility in organic semiconductors
von M�hlenen, A., Errien, N., Schaer, M., Bussac, M.N. and Zuppiroli, L. Physical Review B, 75(11) pp. 115338 (2007)	Thermopower measurements on pentacene transistors

Libero Zuppiroli

Professeur honoraire

Domaines de compétences

Mission

Biographie

Publications

Publications Infoscience

Infoscience

On the origin of exciton formation in dye doped Alq(3) OLEDs

Low-loss polymer waveguides on nanoporous layers

The effects of channel length and film microstructure on the performance of pentacene transistors

From oxide surface to organic transistor properties: the nature and the role of oxide gate surface defects

Couches minces nanoporeuses pour la réalisation de dispositifs optiques

Hopping and trapping mechanisms in organic field-effect transistors

The Effect of Interface Modification on the Properties of Organic Thin-Film Transistors

Magnetic field effects on the conductivity of organic bipolar and unipolar devices at room temperature

Organic thin-film transistors: the passivation of the dielectric-pentacene interface by dipolar self-assembled monolayers

Fluorescent nanopigments: Quantitative assessment of their quantum yield

Nanoporous films with low refractive index for large-surface broad-band anti-reflection coatings

Trap-limited transport in rubrene transistors

Accordabilité de la réponse optique des cristaux photoniques par infiltration de matériaux organiques

An ester-substituted iridium complex for efficient vacuum-processed organic light-emitting diodes

Quantum Yield Measurement of Fluorescent Zeolite Nanopigments

Traité de la lumière

Sublimation Not an Innocent Technique: A Case of Bis-Cyclometalated Iridium Emitter for OLED

Charge transport mechanisms in microcrystalline silicon

Local infiltration of planar photonic crystals with UV-curable polymers

Optisches Element und Verfahren zu seiner Herstellung (Optical element and methods for its fabrication)

Science et technologie comme auxiliaires d'une nouvelle violence

Controlling charge-transfer at the gate interface of organic field-effect transistors

Local tuning of the optical response of two-dimensional photonic crystals

Le traité des couleurs de Goethe et la science d'hier et d'aujourd'hui

Hybrid inorganic-organic photonic devices

Optical tuning of planar photonic crystals infiltrated with organic molecules

Charge transport mechanisms in organic and microcrystalline silicon field-effect transistors

Transistors organiques ultraminces à base de pentacène

Quantum coherence and carriers mobility in organic semiconductors

Thermopower measurements on pentacene transistors

De l'effet de la polarisation électronique sur le transport de charge dans les semi-conducteurs moléculaires

Cubic and oriented Ag nano-particles by high vacuum evaporation

Liquid crystal infiltration of InP-based planar photonic crystals

Charge transport across organic-organic interfaces in organic light-emitting diodes

Polarization effects in the channel of an organic field-effect transistor

Planar photonic crystals infiltrated with liquid crystals: optical characterization of molecule orientation

Molecular engineering of iridium complexes and their application in organic light emitting devices

Approches numériques du transport de charges dans les semiconducteurs organiques

Investigation of the charge transport through disordered organic molecular heterojunctions

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

Interface issues in organic semiconductor based devices

Ultrathin organic transistors on oxide surfaces

Spin dependent transport and recombination in organic light-emitting diodes

Tuning the optical properties of planar photonic crystals by liquid crystal infiltration

Crossover from capacitive to pseudoinductive charge-relaxation in organic/polymeric light-emitting diodes

Insights into OLED functioning through coordinated experimental measurements and numerical model simulations

Comparison between nucleation of pentacene monolayer islands on polymeric and inorganic substrates

Doping-induced charge trapping in organic light-emitting devices

Interface modification to optimize charge separation in cyanine heterojunction photovoltaic devices

L'Université technologique néo-libérale: un service public?

Synthesis of novel cyanine-fullerene dyads for photovoltaic devices

Transport and recombination in organic light-emitting diodes studied by electrically detected magnetic resonance

Benzoic and aliphatic carboxylic acid monomolecular layers on oxidized GaAs surface as a tool for two-dimensional photonic crystal infiltration

Splitting of the recombination zone in organic light emitting diodes by dye doping

New insights into the functioning of dye-doped OLED's from model simulations

Conditions of recombination zone splitting in organic light-emitting diodes

Electronic and structural evidences for charge transfer and localization in iodine-doped pentacene

Nucleation and growth of ultrathin pentacene films on silicon dioxide: effect of deposition rate and substrate temperature

The mechanism of lifetime extension due to CuPc injection layer in organic light-emitting diodes

Electrically detected magnetic resonance of organic and polymeric light emitting diodes

Correlated growth in ultrathin pentacene films on silicon oxide: effect of deposition rate

Space charge and polarization effects upon doping organic light-emitting diodes with pyran-containing donor-acceptor molecules

The impact of molecular polarization on the electronic properties of molecular semiconductors

Polaron formation and symmetry breaking

Orienting tetracene and pentacene thin films onto friction-transferred poly(tetrafluoroethylene) substrate

Highly Phosphorescence Iridium Complexes and their Application in Organic Light-Emitting Devices

Cyanine dye acting both as donor and acceptor in heterojunction photovoltaic devices

Internal electric field and charge distribution in multilayer organic light-emitting diodes

MOLED: simulation of multilayer organic light emitting diodes

Solution versus vapor growth of dipolar layers on activated oxide substrates

Light-Induced Renormalization of the Dirac Quasiparticles in the Nodal-Line Semimetal ZrSiSe

Solution-Processed Organic Optical Upconversion Device