標題: Efficient bulk heterojunction solar cells based on a low-bandgap polyfluorene copolymers and fullerene derivatives
作者: Huang, Jen-Hsien
Li, Kuang-Chieh
Wei, Hung-Yu
Chen, Po-Yen
Lin, Lu-Yin
Kekuda, Dhananjay
Lin, Hong-Cheu
Ho, Kuo-Chuan
Chu, Chih-Wei
材料科學與工程學系
光電工程學系
Department of Materials Science and Engineering
Department of Photonics
關鍵字: Polymer solar cell;Polyfluorene;Phenothiazine derivative;Narrow bandgap polymers;Bulk heterojunction
公開日期: 1-Sep-2009
摘要: A low-bandgap polymer (PF-PThCVPTZ) consisted of fluorene and phenothiazine was designed and synthesized. With the donor-acceptor segment, the partial charge transfer can be built in the polymer backbone leading to a wide absorbance. The absorption spectrum of PF-PThCVPTZ exhibits a peak at 510 nm and an absorption onset at 645 nm in the visible range. As blended with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as an electron acceptor, narrow bandgap PF-PThCVPTZ as electron donor shows significant solar cell performance. Under AM 1.5 G, 100 mA/cm(2) illumination, a power conversion efficiency (PCE) of 1.85% was recorded, with a short circuit current (J(SC)) of 5.37 mA/cm(2), an open circuit voltage (V(OC)) of 0.80 V, and a fill factor (FF) of 43.0%. (C) 2009 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.orgel.2009.05.025
http://hdl.handle.net/11536/6751
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2009.05.025
期刊: ORGANIC ELECTRONICS
Volume: 10
Issue: 6
起始頁: 1109
結束頁: 1115
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