Substituted carbazole dyes for efficient molecular photovoltaics: long electron lifetime and high open circuit voltage performance

被引：122

作者：

Koumura, Nagatoshi ^{[1
]}

Wang, Zhong-Sheng ^{[2
]}

Miyashita, Masanori ^{[3
]}

Uemura, Yu ^{[3
]}

Sekiguchi, Hiroki ^{[4
]}

Cui, Yan ^{[2
]}

Mori, Atsunori ^{[4
]}

Mori, Shogo ^{[3
]}

Hara, Kohjiro ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Photon Res Inst, Tsukuba, Ibaraki 3058565, Japan

[2] AIST, Res Ctr Photovolta, Tsukuba, Ibaraki 3058565, Japan

[3] Shinshu Univ, Dept Fine Mat Engn, Nagano 3868567, Japan

[4] Kobe Univ, Dept Chem Sci & Engn, Noda Ku, Kobe, Hyogo 6578501, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 27期

关键词：

SENSITIZED SOLAR-CELLS; NANOCRYSTALLINE TIO2 ELECTRODES; ORGANIC SENSITIZERS; CHARGE-TRANSFER; COUMARIN-DYE; LIGHT; RECOMBINATION; DESIGN; CONVERSION; THIOPHENE;

D O I：

10.1039/b905831a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We designed and synthesized new substituted carbazole dyes, MK-14 and -16, for dye-sensitized solar cells (DSSCs) employing the I-/I-3(-) redox couple. By the addition of a hexyloxyphenyl substituent to previously reported carbazole dyes MK-1 and -2, the electron lifetime and open circuit voltage of the DSSCs employing these dyes were increased, showing comparable values with those using a conventional Ru complex dye. This result was achieved by the retardation of the charge recombination, caused by more effective blocking of the I-3(-) ion in the electrolyte than that in the cases of MK-1 and -2. The result shows the importance of the position of alkyl chains attached to the main framework of dye molecules.

引用

页码：4829 / 4836

页数：8

共 35 条

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