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Ion Accelerator Facility of the Wakasa Wan Energy Research Center for the Study of Irradiation Effects on Space Electronics
Article

Effects of Beam Conditions in Ground Irradiation Tests on Degradation of Photovoltaic Characteristics of Space Solar Cells

1
Japan Aerospace Exploration Agency (JAXA), Tsukuba 305-8505, Japan
2
National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki 370-1292, Japan
3
The Wakasa Wan Energy Research Center (WERC), Tsuruga 914-0192, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Akihiro Iwase
Quantum Beam Sci. 2021, 5(2), 15; https://0-doi-org.brum.beds.ac.uk/10.3390/qubs5020015
Received: 30 March 2021 / Revised: 10 May 2021 / Accepted: 18 May 2021 / Published: 20 May 2021
We investigated the effects of irradiation beam conditions on the performance degradation of silicon and triple-junction solar cells for use in space. The fluence rates of electron and proton beams were varied. Degradation did not depend on the fluence rate of protons for both cells. A higher fluence rate of electrons caused greater degradation of the Si cell, but the dependence was due to the temperature increase during irradiation. Two beam-area expansion methods, defocusing and scanning, were examined for proton irradiation of various energies (50 keV–10 MeV). In comparing the output degradation from irradiation with defocused and scanned proton beams, no significant difference in degradation was found for any proton energy. We plan to reflect these findings into ISO standard of irradiation test method of space solar cells. View Full-Text
Keywords: solar cell; space application; irradiation test; beam condition; degradation; standardization; ISO solar cell; space application; irradiation test; beam condition; degradation; standardization; ISO
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MDPI and ACS Style

Imaizumi, M.; Ohshima, T.; Yuri, Y.; Suzuki, K.; Ito, Y. Effects of Beam Conditions in Ground Irradiation Tests on Degradation of Photovoltaic Characteristics of Space Solar Cells. Quantum Beam Sci. 2021, 5, 15. https://0-doi-org.brum.beds.ac.uk/10.3390/qubs5020015

AMA Style

Imaizumi M, Ohshima T, Yuri Y, Suzuki K, Ito Y. Effects of Beam Conditions in Ground Irradiation Tests on Degradation of Photovoltaic Characteristics of Space Solar Cells. Quantum Beam Science. 2021; 5(2):15. https://0-doi-org.brum.beds.ac.uk/10.3390/qubs5020015

Chicago/Turabian Style

Imaizumi, Mitsuru, Takeshi Ohshima, Yosuke Yuri, Kohtaku Suzuki, and Yoshifumi Ito. 2021. "Effects of Beam Conditions in Ground Irradiation Tests on Degradation of Photovoltaic Characteristics of Space Solar Cells" Quantum Beam Science 5, no. 2: 15. https://0-doi-org.brum.beds.ac.uk/10.3390/qubs5020015

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