EPFL/STI/IMT/PVlab
Expert in thin film solar cells on glass and flexible substrates
Christophe Ballif
EPFL
Synergy
Realizing photovoltaic energy harvesting systems based on tandem solar cells with efficncy beyond that achievable with state-of-the-art industrial single-junction cells
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Project Description

This project aims to realize photovoltaic (PV) energy harvesting systems based on tandem solar cells with efficiencies beyond those achievable with state-of-the-art industrial single-junction cells by combining the unique technological components – record cells absorbing various parts of the solar spectrum – recently realized by Swiss research institutes. By themselves, the new multi-junction cells will be highly complex systems, and will open opportunities for tomorrow’s electricity power plants and for consumer electronic applications, including e.g. watches and powering of low-consumption electronics. The project is supported by key players of the PV field (Meyer Burger) and of the watch and electronic industries (Swatch Group R&D and EM Marin). 

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Our researchers in the media

Notable publications

A vacuum flash–assisted solution process for high-efficiency large-area perovskite solar cells
X. Li, D. Bi, C. Yi, J.-D. Décoppet, J. Luo, S.M. Zakeeruddin, A. Hagfeldt, M. Graetzel
Science 53, 58-62

A Novel Dopant-Free Triphenylamine Based Molecular "Butterfly" Hole-Transport Material for Highly Efficient and Stable Perovskite Solar Cells
F. Zhang, C. Yi, P. Wei, X. Bi, J. Luo, G. Jacopin, S. Wang, X. Li, Y. Xiao, S.M. Zakeeruddin, M. Graetzel
Adv. Energy Mat. 2016, 6, 1600401

Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency
M. Saliba, T. Matsui, J. Seo, K. Domanski, J.-P. Correa-Baena, Md.K. Nazeeruddin, S.M. Zakeeruddin, W. Tress, A. Abate, A. Hagfeldt, M. Graetzel
Energy & Environ. Science, 9, 1989-1997

High-Efficiency Perovskite Solar Cells Employing a S , N -Heteropentacene-based D-A Hole-Transport Material
D. Bi, A. Mishra, P. Gao, M. Franckevicius, C. Steck, S. M. Zakeeruddin, M. K. Nazeeruddin, P. Bäuerle, M. Graetzel, A. Hagfeldt
ChemSusChem, 9(5), 433-438


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Posters from 2016


Perovskite/c-Si tandem solar cells: 4-terminal and monolithic integration
Jérémie Werner, Arnaud Walter, Soo-Jin Moon, Johannes Peter Seif, Sylvain Nicolay, Stefaan de Wolf, Bjoern Niesen, Christophe Ballif

GaInP/Silicon dual junction solar cell with 29.8% certified record efficiency
M. Despeisse, S. Essig, C. Allebe, M. A. Steiner, J. F. Geisz, B. Paviet-Salomon, S. Ward, A. Descoeudres, L. Barraud, V. Lasalvia, N. Badel, J. Champliaud, A. Faes, J. Levrat, A. Tamboli, P. Stradins, D. L. Young, C. Ballif

GaInP/Silicon dual junction solar cell with 29.8% certified record efficiency
M. Despeisse, S. Essig, C. Allebe, M. A. Steiner, J. F. Geisz, B. Paviet-Salomon, S. Ward, A. Descoeudres, L. Barraud, V. Lasalvia, N. Badel, J. Champliaud, A. Faes, J. Levrat, A. Tamboli, P. Stradins, D. L. Young, C. Ballif

Towards III-V / Si tandem solar cells
Jelena Vukajlovic, Federico Matteini, Dmitry Mikulik, Natasa Vulic, Gozde Tutuncouglu, Heidi Potts, Esther Alarcon Llado and Anna Fontcuberta i Morral


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Posters from 2015


Near-infrared transparent perovskite solar cells for tandem applications
Jérémie Werner, Philipp Löper, Arnaud Walter, Silvia Martin de Nicolas, Stephaan de Wolf, Monica Morales-Masis, Björn Niesen, Christophe Ballif

Development of Near Infrared Transparent Perovskite Solar Cell for Tandem Applications with Cu(In,Ga)Se2
Fan Fu, Thomas Feurer, Lukas Kranz, Patrick Reinhard, Timo Jager, Martin Statz, Johannes Loeckinger, Stephan Buecheler, Ayodhya N. Tiwari

Towards flexible GaAs Nanowire solar cells
Federico Matteini, Dmitri Mikulik, Jelena Vukajlovic, Gozde Tutuncuoglu, Heidi Potts and Anna Fontcuberta i Morral

Laser Scribing Patterning for the Production of Organometallic Halide Perovskite Solar Modules
Soo-Jin Moon, Jun-Ho Yum, Linus Löfgren, Arnaud Walter, Laurent Sansonnens, Mustapha Benkhaira, Sylvain Nicolay, Julien Bailat, Christophe Ballif

Posters from 2014


Integration of GaAs nanowires on Si for photovoltaic applications
Jelena Vukajlovic*, Federico Matteini*, Eleonora Russo-Averchi, Anna Dalmau Mallorqui, esther alarcon llado, Gozde Tutuncuoglu, Daniel Rueffer, Heidi Potts, Anna Fontcuberta i Morral

Upscaling perovskite solar cells
J-H. Yum, S-J. Moon, L. Sansonnens, L. Löfgren, S. Nicolay, J. Bailat

Mechanism of low temperature, aqueous solution deposition of conductive Al-doped ZnO
Peter Fuchs; Jan van den Broek; Harald Hagendorfer; Yaroslav Romanyuk; Ayodhya N. Tiwari

Integration of GaAs nanowires on Si for photovoltaic applications
Jelena Vukajlovic*, Federico Matteini*, Eleonora Russo-Averchi, Anna Dalmau Mallorqui, esther alarcon llado, Gozde Tutuncuoglu, Daniel Rueffer, Heidi Potts, Anna Fontcuberta i Morral


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Project Photos