Organic dyes containing oligo-phenothiazine for dye-sensitized solar cells

Yuan Jay Chang, Po Ting Chou, Yan Zuo Lin, Motonori Watanabe, Chih Jen Yang, Tsung Mei Chin, Tahsin J. Chow

研究成果: ジャーナルへの寄稿記事

56 引用 (Scopus)

抄録

A series of organic dyes containing oligo-phenothiazine were synthesized and used effectively on the fabrication of dye-sensitized solar cells (DSSCs). In these compounds the phenothiazine moiety functions both as an electron donor and as a π-bridge. These materials exhibit considerably high values of open-circuit voltage (V oc) ranging from 0.78-0.83 V under an AM1.5 solar condition (100 mW cm -2). Two kinds of substituents, i.e., hexyl and hexyloxyphenyl groups, were added onto the N(10) of phenothiazine for comparison. The best device displayed a short-circuit current (J sc) of 14.3 mA cm -2, an open-circuit voltage (V oc) of 0.83 V, a fill factor (FF) of 0.65, corresponding to an overall conversion efficiency of 7.78%. Their photophysical properties were analyzed with the aid of a time-dependent density functional theory (TDDFT) model with the B3LYP functional. The electronic nature of the devices was further elucidated by using electrochemical impedance spectroscopy.

元の言語英語
ページ(範囲)21704-21712
ページ数9
ジャーナルJournal of Materials Chemistry
22
発行部数40
DOI
出版物ステータス出版済み - 10 28 2012
外部発表Yes

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Open circuit voltage
Coloring Agents
Dyes
Electrochemical impedance spectroscopy
Short circuit currents
Conversion efficiency
Density functional theory
Fabrication
Electrons
phenothiazine
Dye-sensitized solar cells

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

これを引用

Chang, Y. J., Chou, P. T., Lin, Y. Z., Watanabe, M., Yang, C. J., Chin, T. M., & Chow, T. J. (2012). Organic dyes containing oligo-phenothiazine for dye-sensitized solar cells. Journal of Materials Chemistry, 22(40), 21704-21712. https://doi.org/10.1039/c2jm35556f

Organic dyes containing oligo-phenothiazine for dye-sensitized solar cells. / Chang, Yuan Jay; Chou, Po Ting; Lin, Yan Zuo; Watanabe, Motonori; Yang, Chih Jen; Chin, Tsung Mei; Chow, Tahsin J.

:: Journal of Materials Chemistry, 巻 22, 番号 40, 28.10.2012, p. 21704-21712.

研究成果: ジャーナルへの寄稿記事

Chang, YJ, Chou, PT, Lin, YZ, Watanabe, M, Yang, CJ, Chin, TM & Chow, TJ 2012, 'Organic dyes containing oligo-phenothiazine for dye-sensitized solar cells', Journal of Materials Chemistry, 巻. 22, 番号 40, pp. 21704-21712. https://doi.org/10.1039/c2jm35556f
Chang, Yuan Jay ; Chou, Po Ting ; Lin, Yan Zuo ; Watanabe, Motonori ; Yang, Chih Jen ; Chin, Tsung Mei ; Chow, Tahsin J. / Organic dyes containing oligo-phenothiazine for dye-sensitized solar cells. :: Journal of Materials Chemistry. 2012 ; 巻 22, 番号 40. pp. 21704-21712.
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