Publication
Carrier transport and sensitivity issues in heterojunction with intrinsic thin layer solar cells on N-type crystalline silicon: A computer simulation study
Publications associées (100)
A comprehensive physical model for the sensitivity of silicon heterojunction photovoltaic modules to water ingress
Christophe Ballif, Alessandro Francesco Aldo Virtuani, Olatz Arriaga Arruti, Luca Gnocchi
Silicon heterojunction (SHJ)-solar modules-when encapsulated with ethylene vinyl acetate (EVA)-are known to be extremely sensitive to water ingress. The reason for this is, however, not clear. Here, we explain the root causes of this degradation mechanism ...
Cambridge2024Direct high-temperature growth of GaN on Si using trimethylaluminum preflow enabling vertically-conducting heterostructures
Elison de Nazareth Matioli, Alessandro Floriduz
In this work, we demonstrate that GaN can be directly grown at high temperature on Si(111) substrates by metalorganic CVD without using any intentional AlN buffer, by simply employing a trimethylaluminum (TMAl) preflow. We found that n-GaN layers directly ...
Iop Publishing Ltd2024Long-term performance and reliability of silicon heterojunction solar modules
Christophe Ballif, Alessandro Francesco Aldo Virtuani, Olatz Arriaga Arruti
The high-efficiency silicon heterojunction (SHJ) technology is now perceived mature enough to enter the Giga-Watt manufacturing scale with several players around the globe. The growth of the SHJ technology requires confidence from manufacturers, investors, ...
2023Material Development for Perovskite/Silicon Tandem Photovoltaics
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 ...
EPFL2022Contact Design for Silicon Heterojunction Solar Cells
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 ...
EPFL2022Localisation of front side passivating contacts for direct metallisation of high-efficiency c-Si solar cells
Christophe Ballif, Franz-Josef Haug, Xavier Niquille, Andrea Ingenito, Sylvain Nicolay, Frank Meyer
In this work, we present the development of passivating contacts based on thin interfacial oxide/doped polysilicon for two side contacted c-Si solar cells. In the first part, we discuss our layer optimization towards direct metallisation, using firing thro ...
ELSEVIER2022Monolithic Perovskite-Silicon Tandem Solar Cells: From the Lab to Fab?
Christophe Ballif, Quentin Thomas Jeangros, Antonin Faes, Fan Fu, Chien-Jen Yang
This review focuses on monolithic 2-terminal perovskite-silicon tandem solar cells and discusses key scientific and technological challenges to address in view of an industrial implementation of this technology. The authors start by examining the different ...
WILEY-V C H VERLAG GMBH2022Electrical Losses Mitigation in Silicon Heterojunction Solar Cells
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 ...
EPFL2021Passivating Polysilicon Recombination Junctions for Crystalline Silicon Solar Cells
Christophe Ballif, Franz-Josef Haug, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Andrea Ingenito, Audrey Marie Isabelle Morisset, Philippe Wyss, Mario Joe Lehmann
Polysilicon recombination junctions whose n-type bottom layers double as a passivating contact to the silicon surface are investigated. Such recombination junctions are a key element in the interconnection of tandem devices with a silicon bottom cell, and ...
2021Development of Highly Efficient Perovskite-on-Silicon Tandem Solar Cells
Crystalline Silicon (c-Si) solar cells are dominating the photovoltaic (PV) market. Owing to their large manufacturing capacity, reliability and efficiency, c-Si solar cells are now cost-competitive with other non-renewable electricity sources in many plac ...
EPFL2020