Frank Nüesch

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Publications associées (91)

Towards High-k Silicone Composite Material for Low-Voltage Dielectric Elastomer Actuators

Yves Leterrier, Frank Nüesch, John Christopher Plummer, Martin Molberg

2007

Liquid crystal infiltration of InP-based planar photonic crystals

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

A procedure for the infiltration of planar photonic crystals (PhCs) with liquid crystals (LCs) is presented. InP-based PhCs are infiltrated with the nematic LC-K15 in a specially designed high-vacuum chamber. The infiltration technique is validated and sys ...

AIP2006

Counterion effects in cyanine heterojunction photovoltaic devices

Frank Nüesch, Libero Zuppiroli, Antonin Faes

We investigated cyanine heterojunction photovoltaic devices using carbocyanine dyes as donors and buckminsterfullerene (C60) as acceptor. In particular, we focused on the influence of cyanine counterions on the photovoltaic device characteristics. It was f ...

2005

Doping-induced charge trapping in organic light-emitting devices

Frank Nüesch, Libero Zuppiroli, Eduard Tutis, Detlef Berner, Xiao Wang

By using pyran-containing donor-acceptor dyes as doping molecules in organic light-emitting devices (OLEDs), we scrutinize the effects of charge trapping and polarization induced by the guest molecules in the electro-active host material. Laser dyes 4-(dic ...

Wiley-VCH2005

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

Frank Nüesch, Libero Zuppiroli

We present a comparative study of the nucleation and growth of pentacene monolayer islands in the submonolayer regime onto inorganic substrates of SiO2 and sapphire (Al2O3) and organic substrates of poly(methyl-metacrylate) ...

2005

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

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

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

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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