Publications by Adrian Billet | EPFL Graph Search

Comparison 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-Blackwell2016

Resistive interlayer for improved performance of thin film silicon solar cells on highly textured substrate

Christophe Ballif, Matthieu Despeisse, Grégory Bugnon, Andrea Feltrin, Michael Elias Stückelberger, Peter Cuony, Adrian Billet

The deposition of thin-film silicon solar cells on highly textured substrates results in improved light trapping in the cell. However, the growth of silicon layers on rough substrates can often lead to undesired current drains, degrading performance and re ...

AIP American Institute of Physics2010

Development of Micromorph Cells in Large-Area Industrial Reactor

Christophe Ballif, Matthieu Despeisse, Grégory Bugnon, Andrea Feltrin, Gaetano Parascandolo, Adrian Billet

The influences of the deposition pressure and silane depletion on the efficiency of single-junction microcrystalline silicon solar cells has been investigated. The efficiency is found to correlate with the ion energy which affects the density of states in ...

2009

Micromorph tandem solar cells grown at high rate with in-situ intermediate reflector in industrial KAI PECVD reactors

Christophe Ballif, Grégory Bugnon, Julien Claude Bailat, Andrea Feltrin, Adrian Billet

We report on the latest results of tandem micromorph (a-Si:H/μc-Si:H) silicon solar cells fabricated in commercial Oerlikon Solar KAI-S and KAI-M PECVD reactors. First developments of in-situ silicon oxide based intermediate reflector (SOIR) in KAI reactor ...

2008