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Synthesis and Photovoltaic Properties of Copolymers Based on Bithiophene and Bithiazole
Zhang, Maojie1,2; Fan, Haijun1,2; Guo, Xia1; Yang, Yang1; Wang, Shanshan1; Zhang, Zhi-Guo1; Zhang, Jing1,2; Zhan, Xiaowei1; Li, Yongfang1
2011-06-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume49Issue:12Pages:2746-2754
AbstractThree simple structured D-A copolymers, PBTBTz-1, PBTBTz-2, and PBTBTz-3, containing bithiophene (BT) donor unit and bithiazole (BTz) acceptor unit with different alkyl chain length were synthesized by the Pd-catalyzed Stille-coupling method. The copolymers were characterized by thermogravimetric analysis, UV-vis absorption, electrochemical cyclic voltammetry, and photovoltaic measurements. The results indicate that the introduction of BTz unit to the polythiophene main chain effectively decreases highest occupied molecular orbital levels of the copolymers and increases the open circuit voltage (V(oc)) of polymer solar cells (PSCs) based on the copolymers as donor, and the alkyl chain length influences the photovoltaic properties of the polymers significantly. The PSCs based on PBTBTz-2 and PBTBTz-3 show higher Voc up to 0.77 and 0.81 V, respectively. The power conversion efficiency of the PSC based on PBTBTz-2: PC(70)BM 1:1(w/w) reached 2.58% with short circuit current of 8.70 mA/cm(2), under the illumination of AM1.5, 100 mW/cm(2). (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2746-2754, 2011
KeywordBithiazole Bithiophene Conjugated Polymers D-a Copolymers Polymer Solar Cells
DOI10.1002/pola.24708
Indexed BySCI
Language英语
WOS IDWOS:000290760100024
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72514
Collection中国科学院化学研究所
Corresponding AuthorLi, Yongfang
Affiliation1.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Maojie,Fan, Haijun,Guo, Xia,et al. Synthesis and Photovoltaic Properties of Copolymers Based on Bithiophene and Bithiazole[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2011,49(12):2746-2754.
APA Zhang, Maojie.,Fan, Haijun.,Guo, Xia.,Yang, Yang.,Wang, Shanshan.,...&Li, Yongfang.(2011).Synthesis and Photovoltaic Properties of Copolymers Based on Bithiophene and Bithiazole.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,49(12),2746-2754.
MLA Zhang, Maojie,et al."Synthesis and Photovoltaic Properties of Copolymers Based on Bithiophene and Bithiazole".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 49.12(2011):2746-2754.
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