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Frank Nüesch

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Publications associées (91)

Time-Dependent p-i-n Structure and Emission Zone in Sandwich-Type Light-Emitting Electrochemical Cells

Frank Nüesch, Beat Ruhstaller, Roland Hany, Matthias Diethelm

2018

Light Scattering Enhancement at the Absorption Edge in Dewetting Droplets of Cyanine Dyes

Frank Nüesch, Jakob Heier, Florent Alexandre Boudoire

Diffraction properties of thin films of dewetted cyanine dye droplets are investigated and related to the complex refractive index. Strong changes in the index of refraction are often found near the absorption edge of organic dyes. Within a small window of ...

Wiley-V C H Verlag Gmbh2017

Strongly Red-Shifted Photoluminescence Band Induced by Molecular Twisting in Cyanine (Cy3) Dye Films

Frank Nüesch, Roland Hany, Surendra Babu Anantharaman, Jakob Heier, Chuyao Peng

Cyanine dye molecules, used as monomers or in aggregate form, find interesting applications in optoelectronic devices. Among the various aggregate species incorporating organic dyes, centrosymmetric dimers are known as nonluminescent. They can act as excit ...

American Chemical Society2017

Charge generation by ultra-stretchable elastomeric electrets

Frank Nüesch, Yee Song Ko

Novel piezoelectric elastomers are synthesized and their long term stability and piezoelectric properties are investigated. They are thin film composites of specially designed polymer nanoparticles with high glass transition temperatures (T-g) and side gro ...

Royal Society of Chemistry2017

Visible light-emitting host-guest electrochemical cells using cyanine dyes

Frank Nüesch, Beat Ruhstaller, Roland Hany, Lei Wang, Surendra Babu Anantharaman, Jakob Heier

Light-emitting electrochemical cells (LECs) can be fabricated as a single emissive organic/salt layer sandwiched between two electrodes, offering cost-effective next generation signage and lighting applications. Cyanine dyes are especially attractive to ex ...

Elsevier Science Bv2017

Mild synthesis of mercaptonitriles from vinyl nitriles and their cyclization reactions

Frank Nüesch, Antonia Neels

Thiol-ene addition of thioacetic acid A is widely used in the synthesis of thiols from vinyl precursors, but so far has not been conducted on non-conjugated vinyl nitriles. The challenge when vinyl nitriles are used is to selectively conduct the thiol-ene ...

Royal Soc Chemistry2016

Elastomers with tunable dielectric and electromechanical properties

Frank Nüesch

Novel electroresponsive silicone elastomers modified with nitrile groups are presented, whose dielectric permittivity (epsilon') is tuned from epsilon' = 4.3 to epsilon' = 17.4. They are prepared in a one-step process starting from a high molecular weight ...

Royal Society of Chemistry2016

Hydrophobization of silver nanoparticles through surface-initiated atom transfer radical polymerization

Heinrich Hofmann, Frank Nüesch, Jose Enrico Quijano Quinsaat

This work describes the synthesis of poly(methyl methacrylate) (PMMA)-coated Ag@SiO2 core-shell particles by conducting a Surface-Initiated Atom Transfer Radical Polymerization (SI-ATRP). Silver nanoparticles (AgNPs) were first prepared by the polyol synth ...

RSC Publishing2016

Cyanine tandem and triple-junction solar cells

Frank Nüesch, Hui Zhang, Björn Niesen, Roland Hany, Lei Wang, René Uwe Schneider

Ultrathin bilayer heterojunction solar cells using cyanine electron donors and electron acceptor C-60 are used to fabricate monolithically stacked tandem and triple junction devices. Sub-cell stack sequences as well as C-60 layer thicknesses are optimized ...

Elsevier2016

Ultrafast charge transfer in solid-state films of pristine cyanine borate and blends with fullerene

Jacques-Edouard Moser, Frank Nüesch, Jelissa Risse, Jakob Heier

Photoinduced electron transfer in light-absorbing materials is the first step towards charge separation and extraction in small molecule-based organic solar cells. The excited state dynamics of the cyanine dye cation Cy3 paired with a tetraphenylborate cou ...

Royal Society of Chemistry2015

Influence of Molybdenum Oxide Interface Solvent Sensitivity on Charge Trapping in Bilayer Cyanine Solar Cells

Frank Nüesch, Beat Ruhstaller, Roland Hany

Bilayer organic solar cells based on trimethine cyanine donor and C-60 acceptor materials have been fabricated by coating the trimethine dye from solution on molybdenum oxide (MoO3) anode buffer layer. The choice of deposition solvent drastically influence ...

Amer Chemical Soc2014

Continuous Production of Tailored Silver Nanoparticles by Polyol Synthesis and Reaction Yield Measured by X-ray Absorption Spectroscopy: Toward a Growth Mechanism

Paul Bowen, Heinrich Hofmann, Frank Nüesch, Andrea Testino, Christian Ludwig, Jose Enrico Quijano Quinsaat

Two complementary topics are discussed: (i) the continuous production of silver nanoparticles (AgNPs) and (ii) the measurement of reaction yield by X-ray absorption near-edge spectroscopy (XANES). The continuous polyol synthesis of AgNPs in grams amount an ...

Amer Chemical Soc2014

Influence of Frequency Dependent Dielectric and Mechanical Properties on the Performance for Dielectric Elastomer Actuators

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

2010

Influence of Frequency Dependent Dielectric and Mechanical Properties on the Performance for Dielectric Elastomers Actuators

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

2010

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

Frank Nüesch, Libero Zuppiroli

Magnetic field effects on the conductivity of different types of organic devices: undoped and dye doped aluminium (III) 8-hydroxyquinoline (Alq3)-based organic light emitting diodes (OLEDs), electrononly Alq3-based diodes, and a hole-only N,N'-diphenyl-N,N ...

Elsevier2010

Frequency dependent dielectric and mechanical behaviour of elastomers for actuator applications

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

The low frequency mechanical and dielectric behavior of three different elastomers has been investigated by dynamic mechanical analysis and dielectric spectroscopy, with the aim of accounting for the frequency dependence of the characteristics of the corre ...

American Institute of Physics2009

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Frank Nüesch

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Time-Dependent p-i-n Structure and Emission Zone in Sandwich-Type Light-Emitting Electrochemical Cells

Light Scattering Enhancement at the Absorption Edge in Dewetting Droplets of Cyanine Dyes

Strongly Red-Shifted Photoluminescence Band Induced by Molecular Twisting in Cyanine (Cy3) Dye Films

Charge generation by ultra-stretchable elastomeric electrets

Visible light-emitting host-guest electrochemical cells using cyanine dyes

Mild synthesis of mercaptonitriles from vinyl nitriles and their cyclization reactions

Elastomers with tunable dielectric and electromechanical properties

Hydrophobization of silver nanoparticles through surface-initiated atom transfer radical polymerization

Cyanine tandem and triple-junction solar cells

Ultrafast charge transfer in solid-state films of pristine cyanine borate and blends with fullerene

Influence of Molybdenum Oxide Interface Solvent Sensitivity on Charge Trapping in Bilayer Cyanine Solar Cells

Continuous Production of Tailored Silver Nanoparticles by Polyol Synthesis and Reaction Yield Measured by X-ray Absorption Spectroscopy: Toward a Growth Mechanism

Influence of Frequency Dependent Dielectric and Mechanical Properties on the Performance for Dielectric Elastomer Actuators

Influence of Frequency Dependent Dielectric and Mechanical Properties on the Performance for Dielectric Elastomers Actuators

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

Frequency dependent dielectric and mechanical behaviour of elastomers for actuator applications

PbS and US Quantum Dot-Sensitized Solid-State Solar Cells: "Old Concepts, New Results"

High k Dielectric Elastomeric Materials for Low Voltage Applications

Improved Materials For Dielectric Elastomer Actuators

Co-sensitization of Organic Dyes for Efficient Ionic Liquid Electrolyte-based Dye-Sensitized Solar Cell