Synthesis and applications of novel acceptor-donor-acceptor organic dyes with dithienopyrrole- and fluorene-cores for dye-sensitized solar cells

被引：69

作者：

Sahu, Duryodhan ^{[1
]}

Padhy, Harihara ^{[1
]}

Patra, Dhananjaya ^{[1
]}

Yin, Jen-Fu ^{[1
]}

Hsu, Ying-Chan ^{[2
]}

Lin, Jiann-T'Suen ^{[2
]}

Lu, Kuang-Lieh ^{[2
]}

Wei, Kung-Hwa ^{[1
]}

Lin, Hong-Cheu ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu, Taiwan

[2] Acad Sinica, Inst Chem, Taipei 115, Taiwan

来源：

TETRAHEDRON | 2011年 / 67卷 / 02期

关键词：

Dye-sensitized solar cell; Di-anchoring dyes; Acceptor-donor-acceptor; Density function theory; Electron lifetime; RUTHENIUM SENSITIZER; PHOTOVOLTAIC PROPERTIES; LOW-COST; THIOPHENE; PERFORMANCE; EFFICIENCY; CONVERSION; DESIGN; LIGHT; RECOMBINATION;

D O I：

10.1016/j.tet.2010.11.044

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Four novel symmetrical organic dyes (S1-S4) configured with acceptor-donor-acceptor (A-D-A) structures containing electron donating fluorene (S1 and S2) and N-alkyl dithieno[3,2-b:2',3'-d]pyrrole (DTP) (S3 and S4) cores terminated with two anchoring cyanoacrylic acids (as electron acceptors) were synthesized and applied to dye-sensitized solar cells (DSSCs). The DSSC device based on S2 dye showed the best photovoltaic performance among S1-S4 dyes: a maximum monochromatic incident photon-to-current conversion efficiency (IPCE) of 76%, a short circuit current (J(SC)) of 12.27 mA/cm(2), an open circuit voltage (V-OC) of 0.61 V. a fill factor (FF) of 0.63, and an overall power conversion efficiency (eta) of 4.73%. Besides, the utilization of chenodoxycholic acid (CDCA) as a co-adsorbent in the DSSC device based on S3 dye showed a significant improvement in its eta value (from 3.70% to 4.31%), which is attributed to the suppression of dye aggregation on TiO2 surface and thus to increase the J(SC) value eventually. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：303 / 311

页数：9

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