標題: Synthesis and applications of novel acceptor-donor-acceptor organic dyes with dithienopyrrole- and fluorene-cores for dye-sensitized solar cells
作者: Sahu, Duryodhan
Padhy, Harihara
Patra, Dhananjaya
Yin, Jen-Fu
Hsu, Ying-Chan
Lin, Jiann-T'Suen
Lu, Kuang-Lieh
Wei, Kung-Hwa
Lin, Hong-Cheu
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Dye-sensitized solar cell;Di-anchoring dyes;Acceptor-donor-acceptor;Density function theory;Electron lifetime
公開日期: 14-一月-2011
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 TiO(2) surface and thus to increase the J(SC) value eventually. (C) 2010 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.tet.2010.11.044
http://hdl.handle.net/11536/25889
ISSN: 0040-4020
DOI: 10.1016/j.tet.2010.11.044
期刊: TETRAHEDRON
Volume: 67
Issue: 2
起始頁: 303
結束頁: 311
顯示於類別:期刊論文


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  1. 000286499000004.pdf