Synthesis and characterization of 5,6-bis(n-octyloxy)[2,1,3] selenadiazole-based polymers for photovoltaic applications
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- 作者：Weifang Liu ; Lixia Qiu ; Wangjun Tang ; Lihui Jiang ; Hongjian Peng…
- 关键词：Benzoselenadiazole ; Synthesis and processing ; Device performance
- 刊名：Polymer Bulletin
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：73
- 期：2
- 页码：385-398
- 全文大小：1,414 KB
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Lixia Qiu (1)
Wangjun Tang (1)
Lihui Jiang (1) (2) (3)
Hongjian Peng (1)
Guohui Chen (1)
Xuxian Xiao (1)
Yingping Zou (1) (3)
1. College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
2. State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China
3. School of Physics and Electronics, Central South University, Changsha, 410083, China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Polymer Sciences
Characterization and Evaluation Materials
Soft Matter and Complex Fluids
Physical Chemistry - 出版者：Springer Berlin / Heidelberg
- ISSN：1436-2449
文摘
Two D–A conjugated polymers containing benzo[1,2-b:4,5-b’] dithiophene (BDT), benzo[1,2-b:4,5-b’]difuran (BDF) donor units and 4,7-di(thiophen-2-yl)-5,6-bis(n-octyloxy)[2,1,3]benzoselenadiazole (DTBSe) acceptor unit, namely PBDTDTBSe and PBDFDTBSe have been synthesized by Stille coupling polymerization. The two polymers show good solubility in common organic solvents, good film forming properties, broad absorption (350–700 nm), low optical band gap (about 1.60 eV) and relatively high hole mobility [1.22 × 10−2 cm−2/(V.s)]. The devices based on the blend film of PBDFDTBSe and PC71BM (1:1, w/w) exhibited the best device performance with PCE of 3.28 %, V oc of 0.71 V, J sc of 10.37 mA cm−2 and FF of 44.6 % under illumination of AM 1.5 G (100 mW cm−2). Keywords Benzoselenadiazole Synthesis and processing Device performance