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题名: Carbazole-Substituted Triphenylamine and Diketopyrrolopyrrole Alternating Copolymer for Photovoltaic Cells
作者: Bian, Linyi1;  Yang, Dong2, 3;  Yin, Liangming1;  Zhang, Jian2;  Tang, Weihua1
关键词: bulk heterojunction ;  polymer solar cells ;  narrow bandgap polymers ;  two-dimensional polymers
刊名: MACROMOLECULAR CHEMISTRY AND PHYSICS
发表日期: 2013-10-01
DOI: 10.1002/macp.201300356
卷: 214, 期:19, 页:2136-2143
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Polymer Science
研究领域[WOS]: Polymer Science
英文摘要: A new alternating conjugated polymer (PTCDPP) of carbazole-substituted triarylamine and diketopyrrolopyrrole is prepared and characterized in detail. The polymer exhibits two strong absorption bands at 345 and 600 nm. With highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of -5.13 eV and -3.67 eV, PTCDPP displays an energy gap of 1.66 eV. PTCDPP-based bulk heterojunction solar cells with a structure of fluorinated tin oxide (FTO)/TiO2/PTCDPP:[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/MoO3/Ag are fabricated. The devices are optimized by adjusting the composition of the PTCDPP:PCBM active layer, thermal treatment, and addition of processing additives. The device based on PTCDPP:PCBM (1:4, w/w) shows a power conversion efficiency (PCE) of 2.31%, with a short-circuit current of 4.17 mA cm(-2), an open-circuit voltage of 0.79 V, and a fill factor of 0.35. The best cell performance (2.65% PCE) is achieved by using 1,8-diiodooctane (3%, v/v) as a processing additive and annealing the active layer at 80 degrees C.
关键词[WOS]: POLYMER SOLAR-CELLS ;  THIN-FILM TRANSISTORS ;  BAND-GAP POLYMERS ;  ENERGY-CONVERSION EFFICIENCY ;  OPEN-CIRCUIT VOLTAGE ;  CONJUGATED POLYMERS ;  HIGH-MOBILITY ;  SEMICONDUCTING POLYMER ;  TANDEM POLYMER ;  HOLE MOBILITY
语种: 英语
WOS记录号: WOS:000325481900003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137972
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Nanjing Univ Sci & Technol, Minist Educ, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China

Recommended Citation:
Bian, Linyi,Yang, Dong,Yin, Liangming,et al. Carbazole-Substituted Triphenylamine and Diketopyrrolopyrrole Alternating Copolymer for Photovoltaic Cells[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2013,214(19):2136-2143.
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