Libero Zuppiroli

libero.zuppiroli@epfl.ch +41 21 693 33 96

EPFL STI-DO
PH D2 465 (Bâtiment PH)
Station 3
1015 Lausanne

+41 21 693 33 96
Office: PH D2 465
EPFL > STI > STI-DEC > PH-STI

Fields of 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.

BIOGRAPHY

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

Infoscience publications

Infoscience

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

G. Gatti; A. Crepaldi; M. Puppin; N. Tancogne-Dejean; L. Xian et al.

Physical Review Letters. 2020-08-12. DOI : 10.1103/PhysRevLett.125.076401.

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

Fields of expertise

Mission

BIOGRAPHY

Publications

Infoscience publications

Infoscience

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

Solution-Processed Organic Optical Upconversion Device

Optimized Electrolyte Loading and Active Film Thickness for Sandwich Polymer Light-Emitting Electrochemical Cells

Cyanine tandem and triple-junction solar cells

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

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

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

Fluorescent nanopigments: Quantitative assessment of their quantum yield

Les enjeux du remplacement des lampes à incandescence. Des lampes «économiques», mais quelle qualité d’éclairage?

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

Hopping and trapping mechanisms in organic field-effect transistors

Quantum Yield Measurement of Fluorescent Zeolite Nanopigments

Trap-limited transport in rubrene transistors

Liquid crystals into planar photonic crystals

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

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

Local infiltration of planar photonic crystals with UV-curable polymers

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

Impact of feature-size dependent etching on the optical properties of photonic crystal devices

Charge transport mechanisms in microcrystalline silicon

Competition between excitons and exciplexes: Experiments on multilayered organic light emitting diodes

Optical tuning of planar photonic crystals infiltrated with organic molecules

Thermopower measurements on pentacene transistors

Quantum coherence and carriers mobility in organic semiconductors

Characterization of the feature-size dependence in Ar/Cl2 chemically assisted ion beam etching of InP-based photonic crystal devices

Liquid crystal infiltration of InP-based planar photonic crystals

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

Investigation of the charge transport through disordered organic molecular heterojunctions

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

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

Disorder-induced losses in planar photonic crystals

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

Erratum: Counterion effects in cyanine heterojunction photovoltaic devices

Counterion effects in cyanine heterojunction photovoltaic devices

Spin dependent transport and recombination in organic light-emitting diodes

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

Interface modification to optimize charge separation in cyanine heterojunction photovoltaic devices

Doping-induced charge trapping in organic light-emitting devices

Synthesis of novel cyanine-fullerene dyads for photovoltaic devices

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

Ultrathin organic transistors on oxide surfaces

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

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

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

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

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

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

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

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

Polaron formation and symmetry breaking

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

Solution versus vapor growth of dipolar layers on activated oxide substrates

Does a single zealot affect an infinite group of voters?

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

MOLED: simulation of multilayer organic light emitting diodes

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

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

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

Solution-Processed Organic Optical Upconversion Device

Optimized Electrolyte Loading and Active Film Thickness for Sandwich Polymer Light-Emitting Electrochemical Cells

Cyanine tandem and triple-junction solar cells

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

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

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

Fluorescent nanopigments: Quantitative assessment of their quantum yield

Les enjeux du remplacement des lampes à incandescence. Des lampes «économiques», mais quelle qualité d’éclairage?