有機合成化学協会誌
Online ISSN : 1883-6526
Print ISSN : 0037-9980
ISSN-L : 0037-9980
総説および総合論文
分子配列·配向性を制御したD-π-A蛍光性色素の開発と色素増感太陽電池への応用
大山 陽介大下 浄治播磨 裕
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2012 年 70 巻 5 号 p. 524-540

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Dye-sensitized solar cells (DSSCs) have received considerable attention because of high incident solar light-to-electricity conversion efficiency and low cost of production. To increase power conversion efficiency of DSSCs, it is important to develop the effective organic dye sensitizers. For this purpose, as a new class of donor-π-acceptor (D-π-A) dye sensitizers for DSSCs, we have designed and synthesized a series of D-π-A fluorescent dyes with carboxyl groups on different positions of a chromophore skeleton or with pyridine ring as electron-withdrawing-injecting anchoring group. On the basis of experimental results and MO calculations, we propose that, for developing high performance DSSCs, it is necessary to create an epoch-making molecular design capable of controlling not only photophysical and electrochemical properties of the dyes themselves but also molecular arrangement and/or orientation of the dyes on TiO2 surface to provide a good electron communication between the dyes and TiO2 electrode.

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© 2012 社団法人 有機合成化学協会
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