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题名: Two new fluorinated copolymers based on thieno [2,3-f]benzofuran for efficient polymer solar cells
作者: He, Dingjun1; Qiu, Lixia1; Zhang, Zhiguo2; Li, Yongfang2; Pan, Chunyue1; Zou, Yingping1
刊名: RSC ADVANCES
发表日期: 2016
卷: 6, 期:67, 页:62923-62933
收录类别: SCI
英文摘要: Two new copolymers named TBFPF-BT and TBFPF-BO, composed of a fluorine substituted thieno[2,3-f] benzofuran donor unit and benzothiadiazole/benzooxadiazole acceptor unit, have been synthesized as the donor materials for polymer solar cell (PSC) applications. Both polymers presented wide absorptions (300-800 nm) in the UV-Vis region. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels were-5.28/-3.60 eV and-5.38/-3.69 eV for TBFPF-BT and TBFPF-BO, respectively. PSCs with the blends of TBFPF-BT/TBFPF-BO and PC71BM (1 : 2, w/w) as photoactive layers exhibited relatively low photovoltaic performances. After optimizing with 1% 1,8-diiodooctane (DIO) as additive, dramatic changes in short-circuit current density (,.7) and fill factor (FF) were seen, with PCE up to 6.80% and 5.98% under AM 1.5, 100 mW cm-2 for TBFPF-BT and TBFPFBO, respectively. Compared to TBFPF-BO, the higher PCE mainly benefits from the higher hole mobility and better morphology for the TBFPF-BT and PC71BM blend film.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35611
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China
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