Fluorination as an effective tool to increase the photovoltaic performance of indacenodithiophene-alt-quinoxaline based wide-bandgap copolymers

doi:10.1016/j.orgel.2016.03.012

QIBEBT-IR > 先进有机功能材料研究组

	Fluorination as an effective tool to increase the photovoltaic performance of indacenodithiophene-alt-quinoxaline based wide-bandgap copolymers
	Fan, Qunping 1; Liu, Yu 1,2; Jiang, Huanxiang 3; Su, Wenyan 1; Duan, Linrui 1; Tan, Hua 1; Li, Yuanyuan 1; Deng, Jiyong 4; Yang, Renqiang 3; Zhu, Weiguo 1,2
	2016-06-01
发表期刊	ORGANIC ELECTRONICS
卷号	33 页码:128-134
摘要	To investigate the effect of the fluoride phenyl side-chains into quinoxaline (PQx) unit on the photovoltaic performances of polymers, we demonstrated the synthesis and characterization of two novel wide-bandgap (WBG) copolymers, PIDT-DTPQx and PIDT-DTFPQx, in which indacenodithiophene (IDT), 2,3-diphenylquinoxaline (PQx) (and/or 2,3-bis(4-fluorophenyl) quinoxaline (FPQx)) and thiophene (T) were used as the donor (D) unit, acceptor (A) unit and pi-bridge, respectively. Compared to the non-fluorine substituted PIDT-DTPQx, fluorine substituted PIDT-DTFPQx presents a deep HOMO energy level and a high hole mobility. Obviously, improved the V-oc, J(sc), and FF simultaneously, giving rise to overall efficiencies in the PIDT-DTFPQx/PC71BM-based PSCs. A highest PCE of 5.78% was obtained with a V-oc of 0.86 V, J(sc) of 10.84 mA cm(-2) and FF of 61.7% in the PIDT-DTFPQx/PC71BM-based PSCs, while PIDT-DTPQx based devices also demonstrated a PCE of 5.11%, under the illumination of AM 1.5G (100 mW cm(-2)). Note that these PCE values were achieved for PSCs without any extra treatments. Furthermore, these optimal devices have a film thickness of about 175 nm for the polymer/PC71BM-based active layers. The results provide that introduction of the fluorine atom into quinoxaline unit by side-chain engineering is one of the effective strategies to construct the promising polymer donor materials for future application of large-area polymer solar cells. (C) 2016 Elsevier B.V. All rights reserved.
文章类型	Article
关键词	Indacenodithiophene Quinoxaline Fluorination Polymer Solar Cells
WOS标题词	Science & Technology ; Technology ; Physical Sciences
DOI	10.1016/j.orgel.2016.03.012
关键词[WOS]	POLYMER SOLAR-CELLS ; OPEN-CIRCUIT-VOLTAGE ; POWER CONVERSION EFFICIENCY ; FIELD-EFFECT TRANSISTORS ; MOLECULAR-ENERGY LEVEL ; CONJUGATED POLYMERS ; SIDE-CHAIN ; SINGLE-JUNCTION ; BENZODITHIOPHENE ; BENZOTHIADIAZOLE
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Physics
项目资助者	Major Cultivation and General Programs of the National Natural Science Foundation of China(51573154 ; Program for Innovative Research Cultivation Team in University of Ministry of Education of China(1337304) ; Innovation Group in Hunan Natural Science Foundation(12JJ7002) ; Natural Science Foundation of Hunan(14JJ4019 ; key project of Hunan Provincial Education Department(13A102 ; 51273168 ; 2015JJ3113) ; 13A133 ; 51403178) ; 14C1099)
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000375111700018
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/8284
专题	先进有机功能材料研究组
作者单位	1.Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China 2.Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 4.Hunan Inst Engn, Sch Chem & Chem Engn, Xiangtan 411105, Peoples R China
推荐引用方式 GB/T 7714	Fan, Qunping,Liu, Yu,Jiang, Huanxiang,et al. Fluorination as an effective tool to increase the photovoltaic performance of indacenodithiophene-alt-quinoxaline based wide-bandgap copolymers[J]. ORGANIC ELECTRONICS,2016,33:128-134.
APA	Fan, Qunping.,Liu, Yu.,Jiang, Huanxiang.,Su, Wenyan.,Duan, Linrui.,...&Zhu, Weiguo.(2016).Fluorination as an effective tool to increase the photovoltaic performance of indacenodithiophene-alt-quinoxaline based wide-bandgap copolymers.ORGANIC ELECTRONICS,33,128-134.
MLA	Fan, Qunping,et al."Fluorination as an effective tool to increase the photovoltaic performance of indacenodithiophene-alt-quinoxaline based wide-bandgap copolymers".ORGANIC ELECTRONICS 33(2016):128-134.