Design and synthesis of near-infrared-active heptamethine-cyanine dyes to suppress aggregation in a dye-sensitized porous zinc oxide solar cell

被引：31

作者：

Otsuka, Atsuhiro ^{[2
]}

Funabiki, Kazumasa ^{[1
,3
]}

Sugiyama, Naoyuki ^{[1
]}

Mase, Hiroyoshi ^{[1
]}

Yoshida, Tsukasa ^{[3
,4
]}

Minoura, Hideki ^{[4
]}

Matsui, Masaki ^{[1
,3
]}

机构：

[1] Gifu Univ, Dept Mat Sci & Technol, Fac Engn, Gifu 5011193, Japan

[2] Sekisuijushi Tech Res Corp, Shiga 5202596, Japan

[3] Gifu Univ, Ctr Innovat Photovolta Syst, Gifu 5011193, Japan

[4] Gifu Univ, Environm & Renewable Energy Syst Div, Grad Sch Engn, Gifu 5011193, Japan

来源：

CHEMISTRY LETTERS | 2008年 / 37卷 / 02期

关键词：

NANOCRYSTALLINE TIO2 FILMS; PERFORMANCE; ELECTRODE;

D O I：

10.1246/cl.2008.176

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New heptamethine-cyanine dyes were synthesized and used for dye-sensitization of porous zinc oxide cells in the near-infrared region (800nm). The introduction of alkyl groups into the cyclohexene and indolenium moieties remarkably prevented H-aggregation of the dyes. Consequently, the photovoltaic performance of the dye-sensitized zinc oxide cells with DCA was improved; a solar-to-electricity conversion efficiency (77) of 0.67%, a short-circuit current density of 2.22 mA cm(-2), an open-circuit photovoltage of 0.46 V, and a fill factor of 0.66 under standard AM 1.5 irradiation (100 mW cm(-2)).

引用

页码：176 / 177

页数：2

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