Improvement of the Light-Harvesting Efficiency of Polymer Solar Cells by Dye Modification at the p-n Junction
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- Ohkita Hideo
- Japan Science and Technology Agency, PRESTO Graduate School of Engineering, Kyoto University
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- Honda Satoshi
- Graduate School of Engineering, Kyoto University
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- Yokoya Seiichirou
- Graduate School of Engineering, Kyoto University
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- Benten Hiroaki
- Graduate School of Engineering, Kyoto University
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- Ito Shinzaburo
- Graduate School of Engineering, Kyoto University
Bibliographic Information
- Other Title
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- p-n接合界面の色素修飾による高分子太陽電池の光捕集効率の向上
- p-n セツゴウ カイメン ノ シキソ シュウショク ニ ヨル コウブンシ タイヨウ デンチ ノ ヒカリホシュウ コウリツ ノ コウジョウ
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Description
The light-harvesting efficiency of polymer solar cells based on a conjugated polymer (p-type semiconductor) and a fullerene derivative (n-type semiconductor) can be effectively improved by incorporating near-IR dye molecules with bulky axial groups. Further improvement in the photocurrent can be easily obtained by incorporating different dye molecules that have complimentary absorption bands. Transient absorption studies have shown that all the primary processes in the dye sensitization proceed with almost 100% efficiency and that most of dye molecules are located at the p-n junction. Such interfacial segregation of dye molecules is partly due to crystallization of polymer matrix, which would expel dye molecules into the p-n junction, and partly due to intermediate surface energy of dye molecules between polymer and fullerene, by which dye molecules would serve as a surfactant in polymer/fullerene blends.<br>
Journal
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- Journal of The Society of Photographic Science and Technology of Japan
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Journal of The Society of Photographic Science and Technology of Japan 74 (6), 267-271, 2011
THE SOCIETY OF PHOTOGRAPHY AND IMAGING OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282681546463232
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- NII Article ID
- 130004796379
- 40019173686
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- NII Book ID
- AN00191766
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- COI
- 1:CAS:528:DC%2BC38XisFWisr0%3D
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- ISSN
- 18845932
- 03695662
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- HANDLE
- 2433/194097
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- NDL BIB ID
- 023459696
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed