Concept

Monocrystalline silicon

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Investigation and Mitigation of Moisture- and Potential-Induced Degradation Mechanisms of Silicon Heterojunction Solar Cells and Modules

Olatz Arriaga Arruti

Photovoltaic (PV) technology is one of the most promising renewable energy sources. The PV market is dominated by crystalline silicon (c-Si) based technologies, thus ensuring their long-term performance is of paramount importance for manufacturers, investo ...

EPFL2023

A universal route to efficient non-linear response via Thomson scattering in linear solids

Gabriel Aeppli, Ji Zhou, Cheng Wang, Junjie Li, Joe Martin Bailey, Min Chen

Non-linear materials are cornerstones of modern optics and electronics. Strong dependence on the intrinsic properties of particular materials, however, inhibits the at-will extension of demanding non-linear effects, especially those second-order ones, to w ...

OXFORD UNIV PRESS2023

22.8% full-area bifacial n-PERT solar cells with rear side sputtered poly-Si (n) passivating contact

Christophe Ballif, Andrea Ingenito, Bertrand Yves Paul Paviet-Salomon, Sylvain Nicolay, Sofia Libraro

High-temperature compatible passivating contacts based on phosphorus doped polysilicon (poly-Si(n)) on a thin silicon oxide, employed on the rear side of bifacial n-PERT like solar cells provide an efficiency increase while being compatible with current ph ...

ELSEVIER2023

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High-performance perovskite solar cells (PSCs) typically require interfacial passivation, yet this is challenging for the buried interface, owing to the dissolution of passivation agents during the deposition of perovskites. Here, we overcome this limitati ...

Zenodo2023

Crossing the ballistic-ohmic transition via high energy electron irradiation

Philip Johannes Walter Moll, Maja Deborah Bachmann, Matthias Carsten Putzke

The delafossite metal PtCoO2 is among the highest-purity materials known, with low-temperature mean free path up to 5 mu m in the best as-grown single crystals. It exhibits a strongly faceted, nearly hexagonal Fermi surface. This property has profound cons ...

AMER PHYSICAL SOC2023

SiNx and AlOx Nanolayers in Hole Selective Passivating Contacts for High Efficiency Silicon Solar Cells

Audrey Marie Isabelle Morisset, Xinya Niu

The recombination of photogenerated charge carriers at metal-semiconductor interfaces remains a major source of efficiency loss in photovoltaic cells. Here, we present SiNx and AlOx nanolayers as promising interface dielectrics to enable high efficiency ho ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Status and perspectives of crystalline silicon photovoltaics in research and industry

Christophe Ballif, Franz-Josef Haug, Mathieu Gérard Boccard

Crystalline silicon (c-Si) photovoltaics has long been considered energy intensive and costly. Over the past decades, spectacular improvements along the manufacturing chain have made c-Si a low-cost source of electricity that can no longer be ignored. Over ...

2022

The developed world is built on the fact that energy is readily available and functionally infinite. The electricity from the wall, the gas at the station, and the heat in our homes are reliable and low-cost. But this comfort is so far only possible throug ...

EPFL2022

Wireless optoelectronic devices are fabricated by controlling the porosity of p-type silicon, enabling in vivo efficient, non-genetic optoelectronic modulation of peripheral nerve activity. ...

NATURE PORTFOLIO2022

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We investigate bulk and interface recombination in crystalline silicon with p-type fired passivating contacts. These consist of a chemical oxide and an in-situ doped layer of SiCx with low carbon content. Following a rapid thermal annealing to activate the ...

ELSEVIER2022