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Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer
Ding, Dakang1,2; Chen, Weiye1; Wang, Jiuxing2; Qiu, Meng2; Zheng, Huilin1; Ren, Junzhen1; Fan, Meijie1; Sun, Mingliang1,3; Yang, Renqiang2
2016-10-07
发表期刊JOURNAL OF MATERIALS CHEMISTRY C
卷号4期号:37页码:8716-8723
摘要A novel monomer alkoxybiphenyl-substituted benzodithiophene (BDTBP) was synthesized and used as the donor to construct a donor-acceptor copolymer PBDTBP-DTffBT with 4,7-di(4-(2-ethylhexyl)-2-thienyl)-5,6-difluoro-2,1,3-benzothiadiazole (DTffBT) as the acceptor unit. Compared with the corresponding polymer PBDTP-DTffBT based on alkoxyphenyl-substituted BDT, PBDTBP-DTffBT exhibits a red-shifted UV-vis absorption spectra due to its extended pi-conjugation structure. The maximum power conversion efficiency (PCE) of PBDTBP-DTffBT based polymer solar cells (PSCs) is 6.70% with V-oc = 0.85 V, J(sc) = 12.72 mA cm(-2) and FF = 62.14%, and the hole mobility is 3.45 x 10(-4) cm(2) V-1 s(-1) while the maximum PCE of PSCs based on PBDTP-DTffBT is only 4.91% and the hole mobility is 1.70 x 10(-5) cm(2) V-1 s(-1). These findings demonstrate that BDTBP unit is a promising building block for constructing a copolymer with high hole mobility, and extending the pi-conjugation length on the alkoxyphenyl-substituted BDT is helpful to improve the photovoltaic properties.
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1039/c6tc03346f
关键词[WOS]POWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGE ; DONOR-ACCEPTOR COPOLYMERS ; ORGANIC SOLAR-CELLS ; LOW-BANDGAP POLYMER ; SIDE-CHAINS ; SINGLE-JUNCTION ; HIGH-PERFORMANCE ; SUBSTITUENTS ; CATHODE
收录类别SCI
语种英语
WOS研究方向Materials Science ; Physics
项目资助者NSFC(21274134 ; State Key Laboratory of Luminescent Materials and Devices(2016-skllmd-01) ; 51573205)
WOS类目Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000385477300015
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9058
专题先进有机功能材料研究组
作者单位1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
3.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
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GB/T 7714
Ding, Dakang,Chen, Weiye,Wang, Jiuxing,et al. Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer[J]. JOURNAL OF MATERIALS CHEMISTRY C,2016,4(37):8716-8723.
APA Ding, Dakang.,Chen, Weiye.,Wang, Jiuxing.,Qiu, Meng.,Zheng, Huilin.,...&Yang, Renqiang.(2016).Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer.JOURNAL OF MATERIALS CHEMISTRY C,4(37),8716-8723.
MLA Ding, Dakang,et al."Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer".JOURNAL OF MATERIALS CHEMISTRY C 4.37(2016):8716-8723.
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