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Synthesis and photovoltaic properties of conjugated copolymers containing cyclopentadithiophene and two different electron-deficient moieties in the polymer backbone
Li, Chao1; Li, Yongxi1; Wang, Xiaoyang2; Zhang, Bin3; Chen, Yu1
2015-05-01
发表期刊JOURNAL OF POLYMER RESEARCH
卷号22期号:5
摘要By using cyclopentadithiophene (CPDT) as an electron-rich unit, difluro-2,1,3-benzothiadiazole (DFBT), diketopyrrolopyrrole (DPP) and thienopyrroledione (TPD) as electron deficient units, two novel alternating conjugated copolymers with a D-A(1)-D-A(2) structure, PCPDT-DFBT-TPD and PCPDT-DFBT-DPP, were designed and synthesized. The incorporation of two electron-deficient units in the structure of terpolymer could enhance solubility, adjust band gap, optimize stack property, and change the electron distribution in the system. Both the polymers PCPDT-DFBT-TPD and PCPDT-DFBT-DPP show highly solubility in o-dichlorobenzene, chlorobenzene, and o-xylene. Optical bandgaps of these polymers can be estimated by extrapolating from the absorption edge of these films to be 1.56 eV for PCPDT-DFBT-TDP and 1.34 eV for PCPDT-DFBT-DPP. The power conversion efficiencies of 3.15 % for PCPDT-DFBT-TPD and 3.11 % for PCPDT-DFBT-DPP were achieved in a bulk heterojunction (BHJ) photovoltaic device with a configuration of ITO/PEDOT: PSS/Polymers: PC71BM/C-60-bis surfactant/Ag under the illumination of AM 1.5G at 100 mA cm(-2).
文章类型Article
关键词Conjugated Polymers Synthesis Thin Films D-a(1)-D-a(2) Copolymers
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s10965-015-0740-4
研究领域[WOS]Polymer Science
关键词[WOS]ORGANIC SOLAR-CELLS ; ACCEPTOR COPOLYMERS ; PERFORMANCE ; ABSORPTION
收录类别SCI
语种英语
WOS类目Polymer Science
WOS记录号WOS:000354637800001
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/9085
专题中国科学院广州能源研究所
作者单位1.E China Univ Sci & Technol, Inst Appl Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
3.Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore
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Li, Chao,Li, Yongxi,Wang, Xiaoyang,et al. Synthesis and photovoltaic properties of conjugated copolymers containing cyclopentadithiophene and two different electron-deficient moieties in the polymer backbone[J]. JOURNAL OF POLYMER RESEARCH,2015,22(5).
APA Li, Chao,Li, Yongxi,Wang, Xiaoyang,Zhang, Bin,&Chen, Yu.(2015).Synthesis and photovoltaic properties of conjugated copolymers containing cyclopentadithiophene and two different electron-deficient moieties in the polymer backbone.JOURNAL OF POLYMER RESEARCH,22(5).
MLA Li, Chao,et al."Synthesis and photovoltaic properties of conjugated copolymers containing cyclopentadithiophene and two different electron-deficient moieties in the polymer backbone".JOURNAL OF POLYMER RESEARCH 22.5(2015).
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