| ファイル情報(添付) | |
| タイトル |
Organic thin-film solar cells with a Cu anode : Improvement of the photovoltaic properties on aging in air
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| 著者 |
Yoshida Yuki
Tanaka Senku
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| 収録物名 |
Journal of Applied Physics
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| 巻 | 106 |
| 号 | 6 |
| 開始ページ | 064510-1 |
| 終了ページ | 064510-8 |
| 収録物識別子 |
ISSN 00218979
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| 内容記述 |
その他
The photovoltaic properties of a Ga-doped ZnO (GZO)/3,4,9,10-perylene-tetracarboxyl-bis-benzimidazole (PTCBI)/Zn-phthalocyanine (ZnPc)/Cu heterojunction cell(cell A) and a GZO/ZnPc/Cu Schottky-barriercell(cell B) were investigated. The energy conversion efficiency η of cell A was only 0.02% immediately after the device preparation but improved to 0.46% after aging for 24 days in air. To elucidate the mechanism of this aging effect, photocurrent action and electro-absorption spectra were measured for cell B. The results reveal that a Schottky barrier exists at the ZnPc/Cu interface which blocks the transport of photogenerated holes to the Cuelectrode, and the barrier height is reduced by a white-light illumination of the device after aging. The change in barrier height is attributed to the formation of electron traps at the surface of the ZnPc layer on aging that trap photogenerated electrons.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Institute of Physics
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| 発行日 | 2009 |
| 権利情報 |
© 2009 AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.
The following article appeared in Jour. Appl. Phys. 106, 064510 (2009). and may be found at http://dx.doi.org/10.1063/1.3226880.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 関連情報 |
[DOI] 10.1063/1.3226880
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