A squaraine dye as molecular sensitizer for increasing light harvesting in polymer solar cells

被引：18

作者：

Chen, Guo ^{[1
]}

Sasabe, Hisahiro ^{[1
]}

Wang, Xiao-Feng ^{[1
]}

Hong, Ziruo ^{[1
,2
]}

Kido, Junji ^{[1
]}

机构：

[1] Yamagata Univ, Grad Sch Sci & Engn, Dept Organ Device Engn, Res Ctr Organ Elect ROEL, Yonezawa, Yamagata 9928510, Japan

[2] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

来源：

SYNTHETIC METALS | 2014年 / 192卷

基金：

日本科学技术振兴机构;

关键词：

Squaraine dye; Molecular sensitizer; Organic solar cell; Bulk heterojunction; Light harvesting; PHOTOVOLTAIC CELLS; EFFICIENCY; NETWORK;

D O I：

10.1016/j.synthmet.2014.02.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, a near-infrared (NIR) absorbing squaraine dye, 2,4-bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl] squaraine (DIBSQ), was added as a molecular sensitizer into poly(3-hexylthiophene):[6,6]-phenyl-C-61 -butyric acid methyl ester (P3HT:PCBM) polymer solar cells to improve their power conversion efficiency (PCE). The absorption of the additional DIBSQ contributed to the photoresponse of the cells in the NIR region. The enhancement of light harvesting efficiently increased the short-circuit current density, and thus improved the PCE by similar to 10%. The optimized PCE of 3.4% under 1 sun, AM 1.5G solar irradiation was achieved with the DIBSQ:P3HT:PCBM system that included 3 or 5 wt% of DIBSQ Our results show that DIBSQ is a promising molecular sensitizer for increasing the PCE of P3HT:PCBM polymer solar cells. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：10 / 14

页数：5

共 27 条

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