Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 49, Issue 4, Pages -Publisher
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.49.042302
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- Advanced Device Laboratories, Research Institute for Science and Technology, Tokyo University of Science
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The effects of alpha-ray, proton, and gamma-ray irradiation on the electrical properties of Cu(In,Ga)Se-2 (CIGS) solar cells and the photoluminescence spectra of CIGS and CuInSe2 (CIS) thin films were investigated. Particle irradiation using alpha-ray and proton primarily degraded the interfaces of CIGS solar cells, even though the CIS and CIGS thin films did not degraded, in the case of a low irradiation fluence of the order of 10(9) cm(-2). On the other hand, CIS and CIGS showed good tolerance to gamma-ray irradiation because the impact of wave radiation is insufficient to degrade the crystal, in comparison with particle radiation. These results will become the first step toward realizing practical applications of CIGS solar cells in space and clarifying their degradation mechanism. (C) 2010 The Japan Society of Applied Physics
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