A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting

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

	A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting
	Wen, Shuguang 1; Chen, Weichao 1; Fan, Meijie 1,2; Duan, Linrui 1; Qiu, Meng 1; Sun, Mingliang 2; Han, Liangliang 1; Yang, Renqiang 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2016
卷号	4 期号:46 页码:18174-18180
英文摘要	A diketopyrrolopyrrole (DPP)-based p-conjugated polymer is a very promising low band gap electron donor material for polymer solar cells. We have incorporated alkyl groups into the 4-position of the thiophene rings connected to the DPP fragment, which is proven to be beneficial for improving the open-circuit voltage (V-OC) and short-circuit current density (J(SC)). Two DPP-based polymers are synthesized with benzo[1,2-b:4,5-b']dithiophene (BDT) as the electron-donating segment. Both the polymers show good solubility, slightly wide optical band gaps and deep HOMO energy levels when incorporating the alkyl groups. Heterojunction solar cells are fabricated with polymer:PC71BM as the active layer. V-OC and J(SC) are simultaneously enhanced compared to the device performance of traditional DPP-BDT alternating polymers. A power conversion efficiency (PCE) of 8.11% was obtained, which indicates that rational utilization of backbone torsion is a promising strategy to improve the photovoltaic performance.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	POWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGE ; HETEROJUNCTION SOLAR-CELLS ; THIN-FILM TRANSISTORS ; SINGLE-JUNCTION ; TANDEM POLYMER ; MOLECULAR-ORIENTATION ; CURRENT-DENSITY ; COPOLYMERS
收录类别	SCI
语种	英语
WOS记录号	WOS:000388505400032
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/9108]
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.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 2.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Wen, Shuguang,Chen, Weichao,Fan, Meijie,et al. A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(46):18174-18180.
APA	Wen, Shuguang.,Chen, Weichao.,Fan, Meijie.,Duan, Linrui.,Qiu, Meng.,...&Yang, Renqiang.(2016).A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting.JOURNAL OF MATERIALS CHEMISTRY A,4(46),18174-18180.
MLA	Wen, Shuguang,et al."A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting".JOURNAL OF MATERIALS CHEMISTRY A 4.46(2016):18174-18180.