A path toward 25%-efficient ultrathin GaAs solar cells

Berengere Frouin; Andrea Cattoni; Hung-Ling Chen; Oliver Höhn; David Lackner; Gerald Siefer; Marco Faustini; Frank Dimroth; Stéphane Collin

doi:10.1117/12.2579341

5 March 2021 A path toward 25%-efficient ultrathin GaAs solar cells

Berengere Frouin, Andrea Cattoni, Hung-Ling Chen, Oliver Höhn, David Lackner, Gerald Siefer, Marco Faustini, Frank Dimroth, Stéphane Collin

Author Affiliations +

Proceedings Volume 11681, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices X; 1168105 (2021) https://doi.org/10.1117/12.2579341
Event: SPIE OPTO, 2021, Online Only

Abstract

We demonstrated recently a record 19.9%-efficient GaAs solar cell with an absorber thickness of only 200 nm. Our next step is to optimize the device to reach a 25% efficiency. In this contribution we will present our latest simulation and experimental results based on an extensive analysis of the optical and electrical losses. The benefits brought by the contacts optimization and the improvement of the nanostructured design at the rear side of the solar cell will be emphasized.

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Berengere Frouin, Andrea Cattoni, Hung-Ling Chen, Oliver Höhn, David Lackner, Gerald Siefer, Marco Faustini, Frank Dimroth, and Stéphane Collin "A path toward 25%-efficient ultrathin GaAs solar cells", Proc. SPIE 11681, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices X, 1168105 (5 March 2021); https://doi.org/10.1117/12.2579341

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