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High Efficiency p-i-n a-Si:H Solar Cells with Low Boron Cross-Contamination Prepared in a Large Area Single-Chamber PECVD Reactor

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Today more than ever the world needs clean energy sources and thus a fast deployment and scaling up of the photovoltaic industry. In this context improving solar cell efficiency plays a major role. In order to achieve the maximum single junction efficiency ...

EPFL2022

Electrical Losses Mitigation in Silicon Heterojunction Solar Cells

Laurie-Lou Senaud

To overcome the worldwide challenges of climate change, photovoltaics is foreseen to play a significant role in the world electricity production. Nowadays, single junction crystalline silicon (c-Si) based solar cells hold the largest share of the global ph ...

EPFL2021

Optimization of front SiNx/ITO stacks for high-efficiency two-side contacted c-Si solar cells with co-annealed front and rear passivating contacts

Christophe Ballif, Franz-Josef Haug, Xavier Niquille, Andrea Ingenito, Sylvain Nicolay, Frank Meyer

In this contribution, we present an electron selective passivating contact metallised with a low temperature process to target front side applications in crystalline silicon (c-Si) solar cells. In addition to an interfacial silicon oxide (SiOx) and an in-s ...

2020

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Detection and direct power conversion of high energy and high intensity ionizing radiation could be a key element in next generation nuclear reactor safety systems and space-born devices. For example, the Fukushima catastrophe in 2011 could have been large ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Effects of X-rays on Perovskite Solar Cells

Christophe Ballif, Björn Niesen, Michael Elias Stückelberger, Jérémie Werner, Yun Luo, Xueying Li

Synchrotron micro- and nanoprobe beamlines have demonstrated great potential to advance photovoltaic devices. Most importantly, their small X-ray spot size has enabled the direct correlation of electrical performance with elemental composition at subgrain ...

AMER CHEMICAL SOC2020

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In recent years, considerable efforts have been devoted to developing novel electron-selective materials for crystalline Si(c-Si) solar cells with the attempts to simplify the fabrication process and improve efficiency. In this study, ZnO:Al (AZO) is co-sp ...

ELSEVIER SCIENCE BV2019

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The present invention relates to an optoelectronic device comprising an electron transport layer (ETL) and a light harvesting layer, wherein the light harvesting layer comprises a metal halide perovskite and is provided on the ETL being a multilayer struct ...

2019

Today more than 90% of the global PV market is covered by c-Si solar cells which are limited by recombination losses at the metal-semiconductor interface. This recombination path can be avoided by separating the metal from the c-Si wafer by introducing a b ...

EPFL2018

An integrated concentrated solar fuel generator utilizing a tubular solid oxide electrolysis cell as solar absorber

Sophia Haussener, Meng Lin

We numerically assessed the potential of a solar reactor concept for efficient fuel processing under concentrated solar irradiation. This design integrates a cavity receiver, a tubular solid oxide electrolyzer, and the concentrated photovoltaic cells into ...

2018

Addition of adamantylammonium iodide to hole transport layers enables highly efficient and electroluminescent perovskite solar cells

David Lyndon Emsley, Wolfgang Richard Tress, Jovana Milic, Dominik Józef Kubicki, Mohammad Mahdi Tavakoli

The efficiency of perovskite solar cells (PSCs) is currently limited by non-radiative recombination losses. One potential loss channel consists of electrons recombining at the interface with the hole transport layer (HTL). We synthesized adamantylammonium ...

ROYAL SOC CHEMISTRY2018