Frank Nüesch

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Visualising ionic screening in perovskite solar cells: a bumpy ride along the J–V curve

Frank Nüesch

The J–V bump and hysteresis in perovskite solar cells are studied combining measurement and simulation, linking them to spatial collection efficiency changes from ionic charge accumulation, as visualised in external quantum efficiency (EQE) spectra. ...

Royal Society of Chemistry (RSC)2025

Indium and Silver Recovery from Perovskite Thin Film Solar Cell Waste by Means of Nanofiltration

Frank Nüesch

Due to minimal material use and low-cost processing, next-generation thin film solar cells represent a promising alternative to traditional crystalline silicon solar cells. Among these, metal-halide perovskite solar cells have seen significant improvements ...

American Chemical Society (ACS)2025

Squaraine Dyes for Organic Photomultiplication Photodetectors with 220% External Quantum Efficiency at 1240 nm

Frank Nüesch

Near-infrared (NIR) light detection at wavelengths lambda > 1100 nm is essential in modern science and technology. Emerging organic semiconductors are promising for solution-processed, flexible, and large-area NIR organic photodetectors (OPDs), but only a ...

WILEY2025

Insights into the Overcharge-Induced Failure Mechanism of Lithium–Sulfur Batteries

Frank Nüesch, Mohammad Jafarpour, Shungui Deng

In the pursuit of durable lithium–sulfur (Li–S) batteries, considerable research has been devoted to extending cycle life by developing advanced cathode materials. However, there exists a common overcharging problem which leads to the disfunction of Li–S b ...

2025

Formation of electron traps in semiconducting polymers via a slow triple-encounter between trap precursor particles

Frank Nüesch, Wei-Hsu Hu

Already in 2012, Blom et al. reported (Nature Materials 2012, 11, 882) in semiconducting polymers on a general electron-trap density of approximate to 3 x 10(17) cm(-3), centered at an energy of approximate to 3.6 eV below vacuum. It was suggested that tra ...

2024

Elastomers Based on Polynorbornene with Polar Polysiloxane Brushes for Soft Transducer Applications

Frank Nüesch, Yeerlan Adeli

Elastomers based on cross-linked bottlebrush polymers combine an extreme softness at low strains with a strain-stiffening effect, which makes them attractive as active components in dielectric elastomer actuators (DEA). Their main disadvantage concerns the ...

Wiley-VHCA AG2024

A polyphosphazene elastomer containing 2,2,2-trifluoroethoxy groups as a dielectric in electrically responsive soft actuators

Frank Nüesch

The adaptive structure and excellent actuation of dielectric elastomer actuators (DEAs) make them promising candidates for soft robotics, haptic interfaces and artificial muscles. A wide variety of elastomers have been synthesised and investigated as diele ...

Royal Society of Chemistry2024

Multifunctional SnO2 QDs/MXene Heterostructures as Laminar Interlayers for Improved Polysulfide Conversion and Lithium Plating Behavior

Frank Nüesch, Mohammad Jafarpour, Shungui Deng

Poor cycling stability in lithium-sulfur (Li-S) batteries necessitates advanced electrode/electrolyte design and innovative interlayer architectures. Heterogeneous catalysis has emerged as a promising approach, leveraging the adsorption and catalytic perfo ...

SHANGHAI JIAO TONG UNIV PRESS2024

Spiropyran-based supramolecular elastomers with tuneable mechanical properties and switchable dielectric permittivity

Frank Nüesch

Silicone elastomers are widely used in various applications, each demanding different properties and functionalities. To be used in such a broad spectrum, silicones with easily tunable or switchable properties are needed. We showed this is achievable with ...

ROYAL SOC CHEMISTRY2024

Photomultiplication Enabling Efficient Shortwave Infrared-Sensitive Organic Upconversion Devices

Frank Nüesch, Wei-Hsu Hu

Organic upconverters made by integrating an infrared-sensitive photodetector with a light-emitting diode offer a low-cost route to visualize images taken in the infrared. However, making such devices sufficiently efficient is challenging. Here, upconversio ...

WILEY-V C H VERLAG GMBH2024

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A polyphosphazene elastomer containing 2,2,2-trifluoroethoxy groups as a dielectric in electrically responsive soft actuators

Frank Nüesch

Royal Society of Chemistry2024

Multifunctional SnO2 QDs/MXene Heterostructures as Laminar Interlayers for Improved Polysulfide Conversion and Lithium Plating Behavior

Frank Nüesch, Mohammad Jafarpour, Shungui Deng

SHANGHAI JIAO TONG UNIV PRESS2024

Photomultiplication Enabling Efficient Shortwave Infrared-Sensitive Organic Upconversion Devices

Frank Nüesch, Wei-Hsu Hu

WILEY-V C H VERLAG GMBH2024