Libero Zuppiroli

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Publications associées (50)

Erratum: Counterion effects in cyanine heterojunction photovoltaic devices

Libero Zuppiroli, Antonin Faes

Springer, Kluwer Academic Publishers2005

Interface modification to optimize charge separation in cyanine heterojunction photovoltaic devices

Frank Nüesch, Libero Zuppiroli, Grégory Tornare

We investigate heterojunction photovoltaic devices using the carbocyanine 1,1'-diethyl-3,3,3',3'-tetramethylcarbocyanine perchlorate (Cy5) as donor and buckminsterfullerene (C60) as acceptor. We find that photocurrent generation occurs at the in ...

Elsevier2005

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

Libero Zuppiroli, Detlef Berner, Hocine Houili

We present some typical applications of our device simulation model "MOLED" which has proven to be a very useful tool for obtaining insight into the functioning of multi-layer organic light-emitting devices (OLED's). Our general approach consists of combin ...

Wiley-VCH Verlag2005

Spin dependent transport and recombination in organic light-emitting diodes

Frank Nüesch, Libero Zuppiroli

Electrically detected magnetic resonance (EDMR) was used to study a series of multilayer organic devices based on aluminum (III) 8-hydroxyquinoline (Alq3). These devices were designed to identify the microscopic origin of different spin dependen ...

Wiley-VCH2005

Ultrathin organic transistors on oxide surfaces

Frank Nüesch, Libero Zuppiroli, Marie-Noëlle Bussac, Adrian von Mühlenen

We have built a model organic field-effect transistor that is basically composed of a single layer of pentacene crystal in interaction with an oxide surface. Drain and source contacts are ohmic so that the pentacene layer can carry a current density as hig ...

Deutsche Physikalische Gesellschaft & IOP Publishing Ltd2005

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

Romuald Houdré, Libero Zuppiroli, Rolando Ferrini, Barbara Wild, Liza Carol Andrea Dunbar

Recently there has been a growing amount of attention devoted to tuneable photonic crystals (PhCs) where the optical response of PhC structures can be dynamically modified. We will show how infiltrating planar PhCs with a synthetic organic material allows ...

SPIE2005

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

Frank Nüesch, Libero Zuppiroli

In this work we propose a phenomenological microscopic approach to deal with pseudoinductive charge-relaxation processes (named also as negative capacitance phenomena) in organic molecules (tris-8-hydroxyquinoline-aluminum) and polymeric [poly(2-metoxy-5-( ...

AIP2005

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

Libero Zuppiroli

2005

Synthesis of novel cyanine-fullerene dyads for photovoltaic devices

Frank Nüesch, Libero Zuppiroli

Two novel cyanine-fullerene dyads have been synthesized by means of the Prato reaction from the corresponding cyanine-aldehyde, N-methylglycine and C60. As well as a thorough characterization using MS-TOF, 1H-NMR, 13C-NMR a ...

Royal Society of Chemistry2005

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

Frank Nüesch, Libero Zuppiroli

We have used electrically detected magnetic resonance (EDMR) to study a series of multilayer organic devices based on aluminum (III) 8-hydroxyquinoline (Alq3). These devices were designed to identify the microscopic origin of different spin-depe ...

2005

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