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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/16142
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| タイトル: | Potential-induced degradation of Cu(In,Ga)Se_2 photovoltaic modules |
| 著者: | Yamaguchi, Seira
Jonai, Sachiko
Hara, Kohjiro
Komaki, Hironori
Shimizu-Kamikawa, Yukiko
Shibata, Hajime
Niki, Shigeru
Kawakami, Yuji
Masuda, Atsushi |
| 発行日: | 2015-07-17 |
| 出版者: | IOP Publishing |
| 誌名: | Japanese Journal of Applied Physics |
| 巻: | 54 |
| 号: | 8S1 |
| 開始ページ: | 08KC13-1 |
| 終了ページ: | 08KC13-7 |
| DOI: | 10.7567/JJAP.54.08KC13 |
| 抄録: | Potential-induced degradation (PID) of Cu(In,Ga)Se_2 (CIGS) photovoltaic (PV) modules fabricated from integrated submodules is investigated. PID tests were performed by applying a voltage of −1000 V to connected submodule interconnector ribbons at 85 °C. The normalized energy conversion efficiency of a standard module decreases to 0.2 after the PID test for 14 days. This reveals that CIGS modules suffer PID under this experimental condition. In contrast, a module with non-alkali glass shows no degradation, which implies that the degradation occurs owing to alkali metal ions, e.g., Na^+, migrating from the cover glass. The results of dynamic secondary ion mass spectrometry show Na accumulation in the n-ZnO transparent conductive oxide layer of the degraded module. A CIGS PV module with an ionomer (IO) encapsulant instead of a copolymer of ethylene and vinyl acetate shows no degradation. This reveals that the IO encapsulant can prevent PID of CIGS modules. A degraded module can recover from its performance losses by applying +1000 V to connected submodule interconnector ribbons from an Al plate placed on the test module. |
| Rights: | This is the author's version of the work. It is posted here by permission of The Japan Society of Applied Physics. Copyright (C) 2015 The Japan Society of Applied Physics. Seira Yamaguchi, Sachiko Jonai, Kohjiro Hara, Hironori Komaki, Yukiko Shimizu-Kamikawa, Hajime Shibata, Shigeru Niki, Yuji Kawakami and Atsushi Masuda, Japanese Journal of Applied Physics, 54(8S1), 2015, 08KC13. http://dx.doi.org/10.7567/JJAP.54.08KC13 |
| URI: | http://hdl.handle.net/10119/16142 |
| 資料タイプ: | author |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
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