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Design and synthesis of triazoloquinoxaline polymers with positioning alkyl or alkoxyl chains for organic photovoltaics cells
Hai, Jiefeng1; Yu, Wei2; Zhao, Baofeng3; Li, Yang1; Yin, Liangming1; Zhu, Enwei1; Bian, Linyi1; Zhang, Jian2; Wu, Hongbin3; Tang, Weihua1
刊名POLYMER CHEMISTRY
2014-02-21
DOI10.1039/c3py01174g
5期:4页:1163-1172
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
关键词[WOS]POWER-CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGE ; LOW-BANDGAP POLYMER ; SOLAR-CELLS ; CONJUGATED POLYMERS ; RATIONAL DESIGN ; GAP POLYMERS ; PERFORMANCE ; DONOR ; COPOLYMER
英文摘要Four benzodithiophene-triazoloquinoxaline alternating polymers, PBDTT-BTzQx-EH-C1, PBDT-BTzQx-EH-C1, PBDT-BTzQx-EH-C12 and PBDT-BTzQx-C12, have been designed and synthesized to investigate the correlation of alkyl side chains with the opto-electronic properties of the resulting polymers. The introduction of side chains onto the thiophene spacer or quinoxaline unit lowers the highest occupied molecular orbital energy level of the polymers, while excessive chains prevent the polymer backbone from pi-pi stacking and result in a decreased short circuit current and fill factor in a photovoltaic application. The bulk heterojunction cells fabricated by blending PBDTT-BTzQx-EH-C1 with [6.6]-phenyl-C61-butyric acid methyl ester exhibit a best power conversion efficiency (PCE) of 1.40%, with a short-circuit current density of 4.12 mA cm(-2), an open-circuit voltage of 0.62 V and a fill factor of 55%. The device was further optimized to 2.24% PCE by using PFN (5 nm)/Ca (5 nm) as a co-interfacial layer.
语种英语
WOS记录号WOS:000331343100008
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145815
专题中国科学院大连化学物理研究所
作者单位1.Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ China, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.S China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
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GB/T 7714
Hai, Jiefeng,Yu, Wei,Zhao, Baofeng,et al. Design and synthesis of triazoloquinoxaline polymers with positioning alkyl or alkoxyl chains for organic photovoltaics cells[J]. POLYMER CHEMISTRY,2014,5(4):1163-1172.
APA Hai, Jiefeng.,Yu, Wei.,Zhao, Baofeng.,Li, Yang.,Yin, Liangming.,...&Tang, Weihua.(2014).Design and synthesis of triazoloquinoxaline polymers with positioning alkyl or alkoxyl chains for organic photovoltaics cells.POLYMER CHEMISTRY,5(4),1163-1172.
MLA Hai, Jiefeng,et al."Design and synthesis of triazoloquinoxaline polymers with positioning alkyl or alkoxyl chains for organic photovoltaics cells".POLYMER CHEMISTRY 5.4(2014):1163-1172.
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