Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 先进有机功能材料团队

	Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer
	Ding, Dakang 1,2; Chen, Weiye 1; Wang, Jiuxing 2; Qiu, Meng 2; Zheng, Huilin 1; Ren, Junzhen 1; Fan, Meijie 1; Sun, Mingliang 1,3; Yang, Renqiang 2
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2016-10-07
卷号	4 期号:37 页码:8716-8723
英文摘要	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.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Materials Science ; Physics
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记录号	WOS:000385477300015
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/9058]
专题	青岛生物能源与过程研究所_先进有机功能材料团队
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
推荐引用方式 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.