Synthesis, characterization and photovoltaic properties of two-dimensional conjugated polybenzodithiophene derivatives appending diketopyrrolopyrrole units as side chain

doi:10.1016/j.polymer.2014.07.055

QIBEBT-IR > 先进有机功能材料研究组

	Synthesis, characterization and photovoltaic properties of two-dimensional conjugated polybenzodithiophene derivatives appending diketopyrrolopyrrole units as side chain
	Chen, Jianhua 1; Xiao, Manjun 1,2; Su, Wenyan 1; Duan, Xiongwei 1; Duan, Linrui 1; Peng, Wenhong 1; Tan, Hua 1,3; Yang, Renqiang 2; Zhu, Weiguo 1,3
	2014-09-15
发表期刊	POLYMER
卷号	55 期号:19 页码:4857-4864
摘要	Two side-chain donor-acceptor (D-A) narrow-band-gap two-dimensional (2D) conjugated polymers of POBDTDPPs and PTBDTDPPs with benzodithiophene (BDT) as D unit and appending diketopyrrolopyrrole (DPP) as A unit were designed and synthesized. The optical, thermal, electrochemical and photovoltaic properties have been investigated. It was found that both polymers exhibit better solution processability and a deeper HOMO energy level relative to its corresponding main-chain conjugated polymers (PBDT-DPP). Moreover, the PTBDTDPPs with an additional di(alkylthiophene)- substituted BDT unit shows a deeper HOMO energy level than the POBDTDPPs with a dialkoxy- substituted BDT unit. Using PTBDTDPPs as an electron donor and [6,6]-phenyl-C-71-butyric acid methyl ester as an electron acceptor, the resulting polymer solar cells (PSCs) exhibited meliorative photovoltaic properties with a power conversion efficiency (PCE) of 2.92% and open circuit voltage (V-oc) of 0.94 V. The PCE and V-oc levels are 1.52-2.92 and 1.14-1.18 times higher than those in the PBDT-DPP- and POBDTDPPs-based PSCs, respectively. This work demonstrates a good example for tuning energy level and photovoltaic properties of the polymers by the application of 2D conjugated structure. (C) 2014 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Two-dimensional Conjugated Polymer Benzodithiophene Diketopyrrolopyrrole
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.polymer.2014.07.055
关键词[WOS]	ORGANIC SOLAR-CELLS ; POWER CONVERSION EFFICIENCY ; PROCESSING ADDITIVES ; PERFORMANCE ; POLYMER ; TANDEM ; COPOLYMERS
收录类别	SCI
语种	英语
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000341906100007
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6314
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.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510000, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jianhua,Xiao, Manjun,Su, Wenyan,et al. Synthesis, characterization and photovoltaic properties of two-dimensional conjugated polybenzodithiophene derivatives appending diketopyrrolopyrrole units as side chain[J]. POLYMER,2014,55(19):4857-4864.
APA	Chen, Jianhua.,Xiao, Manjun.,Su, Wenyan.,Duan, Xiongwei.,Duan, Linrui.,...&Zhu, Weiguo.(2014).Synthesis, characterization and photovoltaic properties of two-dimensional conjugated polybenzodithiophene derivatives appending diketopyrrolopyrrole units as side chain.POLYMER,55(19),4857-4864.
MLA	Chen, Jianhua,et al."Synthesis, characterization and photovoltaic properties of two-dimensional conjugated polybenzodithiophene derivatives appending diketopyrrolopyrrole units as side chain".POLYMER 55.19(2014):4857-4864.