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Making environmental sensors on plastic foil

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Printed flexible and transparent electronics: enhancing low-temperature processed metal oxides with 0D and 1D nanomaterials

Vivek Subramanian

Metal oxides have broad multifunctionality and important applications to energy, sensing, and information display. Printed electronics have recently adopted metal oxides to push the limits of performance and stability for flexible thin film systems. Howeve ...

IOP PUBLISHING LTD2019

Method for manufacturing hybrid soft-rigid electronic devices

Florian Dylan Fallegger, Hadrien Olivier Michaud, Arthur Edouard Hirsch, Aaron Powers Gerratt

A method for manufacturing a hybrid soft-rigid electromechanical device comprising the steps of i) placing electronic components on a temporary substrate; ii) encapsulating said electronic components within a soft curable material and curing said soft cura ...

2019

Solar photovoltaic module

Christophe Ballif, Franz-Josef Haug, Philipp Friedrich Hermann Löper, Philippe Wyss, Josua Andreas Stückelberger

In the present invention a new solar photovoltaic module is proposed comprising a solar cell comprising a silicon layer having a first (1 a) surface and a second surface (1a) opposite to said first surface. The solar cell further comprises a passivating la ...

2017

Recent advances of conductive nanocomposites in printed and flexible electronics

Saleem Khan

Conductive nanocomposites have emerged as significant smart engineered materials for realizing flexible electronics on diverse substrates in recent years. Conductive nanocomposites are comprised of conductive fillers mixed with polymeric elastomer (e.g. po ...

Iop Publishing Ltd2017

A new methodology for producing hyperpolarized C-13 nuclei in small organic systems via parahydrogen induced polarization (PHIP) is proposed: ADAPT (Alternating Delays Achieve Polarization Transfer). The theoretical foundation of the process is investigate ...

Academic Press Inc Elsevier Science2017

Quantification of Valleys of Randomly Textured Substrates as a Function of Opening Angle: Correlation to the Defect Density in Intrinsic nc-Si:H

Jan-Willem Alexander Schüttauf, Simon Hänni

Optical and electrical properties of hydrogenated nanocrystalline silicon (nc-Si:H) solar cells are strongly influenced by the morphology of underlying substrates. By texturing the substrates, the photogenerated current of nc-Si:H solar cells can increase ...

Amer Chemical Soc2016

The best organic solar cells are limited by bimolecular recombination. Tools to study these losses are available; however, they are only developed for small area (laboratory-scale) devices and are not yet available for large area (production-scale) devices ...

Wiley-Blackwell2016

Amorphous/Crystalline Silicon Interface Passivation: Ambient-Temperature Dependence and Implications for Solar Cell Performance

Christophe Ballif, Stefaan De Wolf, Johannes Peter Seif, Bénédicte Demaurex

Silicon heterojunction (SHJ) solar cells feature amorphous silicon passivation films, which enable very high voltages. We report how such passivation increases with operating temperature for amorphous silicon stacks involving doped layers and decreases for ...

Ieee-Inst Electrical Electronics Engineers Inc2015

Due to advantages such as mechanical flexibility, light weight and the prospect to use low-cost roll-to-roll manufacturing processes, organic semiconductors have been widely investi-gated in many application areas as alternatives for their inorganic counte ...

EPFL2015

Self-tracking Solar Concentration

Volker Günter Zagolla

Solar concentration is intended to decrease the cost of expensive solar cell material by replacing the solar cell with a focusing optical system as the initial receiving aperture. This reduces the amount of solar cell material needed but adds the need of t ...

EPFL2015