Panchromatic donor-acceptor-acceptor sensitizers based on 4H-cyclopenta [2,1-b:3,4-b′]dithiophen-4-one as a strong acceptor for dye-sensitized solar cells

被引：33
作者：
Qin, Chuanjiang
Islam, Ashraful
Han, Liyuan [1 ]
机构：
[1] Natl Inst Mat Sci, Photovolta Mat Unit, Tsukuba, Ibaraki 3050047, Japan
来源：
DYES AND PIGMENTS | 2012年 / 94卷 / 03期
基金：
日本科学技术振兴机构;
关键词：
Ketones; Donor-acceptor system; Organic dye; Near-infrared absorption; Dye-sensitized solar cells; HIGH-EFFICIENCY; ORGANIC-DYES; ABSORPTIVITY; PERFORMANCE; CONVERSION; PLATINUM; POLYMERS; STRENGTH; DESIGN;
D O I：
10.1016/j.dyepig.2012.03.002
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Three new donor-acceptor-acceptor near-infrared organic dyes based on 4H-cyclopenta[2,1-b:3,4-b'] dithiophen-4-one as an additional acceptor were developed and used in dye-sensitized solar cells. By virtue of the simple donor-acceptor-acceptor configuration and systematic tuning of the electron-donating ability of the donor moiety, the absorption spectrum of HIQ3 on TiO2 extended to 900 nm. Remarkably, DSCs sensitized with HIQ3 showed broad incident monochromatic photon-to-current conversion efficiency spectra across the entire visible range and extending into the near-infrared region as far as 1100 nm. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：553 / 560
页数：8
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