ICCAS OpenIR
Copolymers of Fluorene and Thiophene with Conjugated Side Chain for Polymer Solar Cells: Effect of Pendant Acceptors
Fan, Haijun1,2; Zhang, Zhiguo1; Li, Yongfang1; Zhan, Xiaowei1
2011-03-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume49Issue:6Pages:1462-1470
AbstractTwo copolymers of fluorene and thiophene with conjugated side-chain pending acceptor end group of cyanoacetate (P2) and malononitrile (P3) were synthesized. Both polymers exhibit good thermal stability and low highest occupied molecular orbital level (-5.5 eV). In comparison with P2, P3 exhibits stronger UV-vis absorption and higher hole mobility. Polymer solar cells based on P3:PC71BM exhibits a power conversion efficiency of 1.33% under AM 1.5, 100 mW/cm(2), which is three times of that based on P2:PC71BM. The higher efficiency is attributed to better absorption, higher hole mobility, and the reduced phase separation scale in P3:PC71BM blend. The aggregate domain size in P3:PC71BM blend is 50 nm, much smaller than that in P2:PC71BM blend (200 nm). Tiny difference in the end groups on side chains of P2 and P3 leads to great difference in phase separation scale, charge transport, and efficiency of their photovoltaic devices. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 14621470, 2011
KeywordConjugated Polymers Donor-acceptor Morphology Polyfluorenes Polymer Solar Cells Structure-property Relations Synthesis
DOI10.1002/pola.24568
Indexed BySCI
Language英语
WOS IDWOS:000288465600018
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72120
Collection中国科学院化学研究所
Corresponding AuthorLi, Yongfang
Affiliation1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Fan, Haijun,Zhang, Zhiguo,Li, Yongfang,et al. Copolymers of Fluorene and Thiophene with Conjugated Side Chain for Polymer Solar Cells: Effect of Pendant Acceptors[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2011,49(6):1462-1470.
APA Fan, Haijun,Zhang, Zhiguo,Li, Yongfang,&Zhan, Xiaowei.(2011).Copolymers of Fluorene and Thiophene with Conjugated Side Chain for Polymer Solar Cells: Effect of Pendant Acceptors.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,49(6),1462-1470.
MLA Fan, Haijun,et al."Copolymers of Fluorene and Thiophene with Conjugated Side Chain for Polymer Solar Cells: Effect of Pendant Acceptors".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 49.6(2011):1462-1470.
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