Improvement of spectral response by co-sensitizers for high efficiency dye-sensitized solar cells

被引：79
作者：
Zhang, Shufang [1 ]
Islam, Ashraful [1 ]
Yang, Xudong [1 ]
Qin, Chuanjiang [1 ]
Zhang, Kun [1 ]
Numata, Youhei [1 ]
Chen, Han [2 ]
Han, Liyuan [1 ,2 ]
机构：
[1] Natl Inst Mat Sci, Photovolta Mat Unit, Tsukuba, Ibaraki 3050047, Japan
[2] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 15期
基金：
日本科学技术振兴机构;
关键词：
CONVERSION EFFICIENCY; ORGANIC-DYE; RUTHENIUM SENSITIZER; REDOX ELECTROLYTE; TIO2; FILMS; PERFORMANCE; PORPHYRIN; COSENSITIZATION; ABSORPTIVITY; KINETICS;
D O I：
10.1039/c3ta01043k
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：
Simple donor-pi-acceptor organic dyes, denoted as HC3, HC4, and HC5, were synthesized as co-sensitizers for black dye based dye-sensitized solar cells. By tuning the electron-donating moieties and side alkyl chain lengths of the co-sensitizers, the spectral photoresponse was greatly enhanced from the UV to the entire visible region. The short circuit current density was significantly improved by 8.5% in the BD + HC5 cell with respect to the cell with BD only, and consequently a high efficiency of 11.6% was achieved.
引用
收藏
页码：4812 / 4819
页数：8
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