New organic photosensitizers incorporating carbazole and dimethylarylamine moieties for dye-sensitized solar cells

被引：22

作者：

Liang, Mao ^{[1
]}

Wang, Zhong-Yuan ^{[1
]}

Zhang, Lu ^{[1
]}

Han, Hong-Yu ^{[1
]}

Sun, Zhe ^{[1
]}

Xue, Song ^{[1
]}

机构：

[1] Tianjin Univ Technol, Dept Appl Chem, Tianjin 300384, Peoples R China

来源：

RENEWABLE ENERGY | 2011年 / 36卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Dye-sensitized solar cell; Photovoltaic; Organic sensitizer; Carbazole; Dimethylarylamine; CHARGE-TRANSFER; HIGH-EFFICIENCY; TRIARYLAMINE; CONVERSION; LIGHT;

D O I：

10.1016/j.renene.2011.03.003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Four organic dyes (XS10-13) employing carbazole unit as electron donor and N,N-dimethylarylamine moieties as electron-donating groups were designed and synthesized for nanocrystalline TiO2 dye-sensitized solar cells. The electron-donating groups of dimethylarylamine increase the electron density of donor moiety and enhance the molar extinction coefficient of dyes. For a typical device the maximum IPCE value could reach 86%, with a short-circuit photocurrent density (J(sc)) of 9.8 mA cm(-2), an open-circuit photovoltage (V-oc) of 642 mV, and fill factor (FF) of 0.63, which corresponds to an overall conversion efficiency (eta) of 4.0%. For a comparison, the N719-sensitized TiO2 solar cell showed an efficiency of 6.4%. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2711 / 2716

页数：6

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