Espinet-González, Pilar and Barrigón, Enrique and Otnes, Gaute and Chen, Yang and Vescovi, Giuliano and Mann, Colin and France, Ryan M. and Walker, Don and Kelzenberg, Michael D. and Åberg, Ingvar and Borgström, Magnus T. and Samuelson, Lars and Atwater, Harry A. (2020) Irradiation Experiments on High Efficiency Nanowire Solar Cells Including Tilted Incidence Angle. In: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC). IEEE , Piscataway, NJ, pp. 2159-2162. ISBN 9781728161150. https://resolver.caltech.edu/CaltechAUTHORS:20210713-154546452
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Abstract
Nanowire based solar cells have promising potential to become the next generation of space solar cells. In this study we corroborate their high radiation tolerance by irradiating high efficiency GaAs (efficiency > 15 %) nanowire solar cells with 1 MeV electrons at a fluence of 10¹⁶ e⁻/cm². Additionally, we theoretically show that the damage in nanowire solar cells is expected to be slightly dependent on the incidence angle and the geometry of the nanowire array. However, experimentally, two sets of GaAs nanowire solar cells have been irradiated with 1 MeV electrons at normal incidence and with a 25° tilted angle exhibiting a similar degradation.
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| Additional Information: | © 2020 IEEE. The authors acknowledge financial support from the Caltech Space Solar Power Project. The work performed within NanoLund was supported by the Swedish Research Council (Vetenskapsrådet), the Swedish Foundation for Strategic Research (SSF), and the Swedish Energy Agency. This research has been funded by Knut and Alice Wallenberg Foundation. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement 641023 (Nano-Tandem) and under the Marie Sklodowska-Curie Grant Agreement 656208. This publication reflects only the authors’ views and the funding agency is not responsible for any use that may be made of the information it contains. We acknowledge Boeing Radiation Effects Laboratory for the irradiation with electrons. This work was supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308 with Alliance for Sustainable Energy, LLC, the operator of the National Renewable Energy Laboratory. | ||||||||||||||||||||||||
| Group: | Space Solar Power Project | ||||||||||||||||||||||||
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| Subject Keywords: | nanowire solar cells, radiation hard, space solar cells, high specific power, space environment, irradiation tests | ||||||||||||||||||||||||
| DOI: | 10.1109/pvsc45281.2020.9300950 | ||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20210713-154546452 | ||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20210713-154546452 | ||||||||||||||||||||||||
| Official Citation: | P. Espinet-Gonzalez et al., "Irradiation Experiments on High Efficiency Nanowire Solar Cells Including Tilted Incidence Angle," 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2020, pp. 2159-2162, doi: 10.1109/PVSC45281.2020.9300950 | ||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||
| ID Code: | 109782 | ||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||||||
| Deposited On: | 13 Jul 2021 17:02 | ||||||||||||||||||||||||
| Last Modified: | 13 Jul 2021 17:02 |
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