Publication
Microcrystalline silicon solar cells: effect of substrate temperature on cracks and their role in post-oxidation
Related publications (36)
III-V Nitride Semiconductors Deposited At Low Temperature For Photovoltaic Applications
This thesis reports on the study and use of low temperature processes for the deposition of indium gallium nitride (InGaN) thin films in order to alleviate some of the present drawbacks of its monolitic deposition on silicon for photovoltaic applications. ...
EPFL2023PECVD System B
Raw experimental data sorted by tool ...
EPFL Infoscience2023Full-Area Passivating Contacts with High and Low Thermal Budgets: Solutions for High Efficiency c-Si Solar Cells
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 ...
EPFL2018Aluminium metallisation for interdigitated back-contact silicon heterojunction solar cells
Back-contact silicon heterojunction solar cells with an efficiency of 22% were manufactured, featuring a simple aluminium metallisation directly on the doped amorphous silicon films. Both the open-circuit voltage and the fill factor heavily depend on the p ...
Iop Publishing Ltd2017Temperature dependence of hydrogenated amorphous silicon solar cell performances
Christophe Ballif, Franz-Josef Haug, Michael Elias Stückelberger, Yannick Samuel Riesen
Thin-film hydrogenated amorphous silicon solar (a-Si:H) cells are known to have better temperature coefficients than crystalline silicon cells. To investigate whether a-Si:H cells that are optimized for standard conditions (STC) also have the highest energ ...
American Institute of Physics2016Comparison of amorphous silicon absorber materials: Kinetics of light-induced degradation
Christophe Ballif, Franz-Josef Haug, Matthieu Despeisse, Mathieu Gérard Boccard, Michael Elias Stückelberger, Yannick Samuel Riesen, Adrian Billet
We investigate the influence of the deposition parameters for intrinsic amorphous silicon absorber layers on light-induced degradation (LID) of thin-film silicon solar cells. The focus is on absorber layers with different bandgaps: on one side, solar cells ...
Wiley-Blackwell2016The boron-tailing myth in hydrogenated amorphous silicon solar cells
Christophe Ballif, Franz-Josef Haug, Matthieu Despeisse, Grégory Bugnon, Michael Elias Stückelberger
The boron-tailing effect in hydrogenated amorphous silicon (a-Si:H) solar cells describes the reduced charge collection specifically in the blue part of the spectrum for absorber layers deposited above a critical temperature. This effect limits the device ...
American Institute of Physics2015Hydrogenated amorphous silicon
Thin-film silicon solar cells are one possible answer to the increasing energy demand of today. Hydrogenated amorphous silicon (a-Si:H) plays a crucial role therein - as absorber layers, but also as doped layers to build p-i -n junctions. This thesis is de ...
EPFL2014Post-deposition treatment of microcrystalline silicon solar cells for improved performance on rough superstrates
Christophe Ballif, Mathieu Gérard Boccard, Sylvain Nicolay, Grégory Bugnon, Laura Ding
In this contribution, we investigate the effect of post-deposition treatments on finished non-encapsulated thin-film microcrystalline silicon solar cells and show that annealing in vacuum leads to improved electrical properties of the solar cells, particul ...
American Institute of Physics2014Atomic-Layer-Deposited Transparent Electrodes for Silicon Heterojunction Solar Cells
We examine damage-free transparent-electrode deposition to fabricate high-efficiency amorphous silicon/crystalline silicon heterojunction solar cells. Such solar cells usually feature sputtered transparent electrodes, the deposition of which may damage the ...
Ieee-Inst Electrical Electronics Engineers Inc2014