Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge

doi:10.1039/c6tc01238h

QIBEBT-IR > 先进有机功能材料研究组

	Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge
	Zheng, Huilin 1,2; Wang, Jiuxing 2,3; Chen, Weiye 1,2; Gu, Chuantao 2,3; Ren, Junzhen 1,2; Qiu, Meng 2; Yang, Renqiang 2; Sun, Mingliang 1,4
	2016
发表期刊	JOURNAL OF MATERIALS CHEMISTRY C
卷号	4 期号:26 页码:6280-6286
摘要	Two novel donor-pi-acceptor (D-pi-A) type polymers based on indacenodithiophene (IDT) and thieno[3,4-c]pyrrole-4,6-dione (TPD) with thiophene (PIDT-t-TPD) or thieno[3,2-b]thiophene (PIDT-tt-TPD) as pi-bridges were designed and synthesized. The pi-conjugated backbone length in the repeating unit of the polymer chain was varied by different p-bridges. Both polymers exhibit planar molecular structures, similar broad optical band gaps (E-g(opt)) and low-lying highest occupied molecular orbital (HOMO) energy levels. However, PIDT-tt-TPD with the more extended pi-conjugated backbone shows higher hole mobility and better miscibility with (6,6)-phenyl-C-71-butyric acid methyl ester (PC71BM). Polymer solar cells (PSCs) based on PIDT-tt-TPD: PC71BM show the highest power conversion efficiency (PCE) of 5.23% with a short-circuit current density (J(SC)) of 11.22 mA cm(-2). Considering the limited absorption of PIDT-tt-TPD (400-650 nm), the J(SC) value is very impressive. In contrast, PIDT-t-TPD:PC71BM only shows a PCE of 2.47% with a low J(SC) of 5.52 mA cm(-2). The lower J(SC) value of PIDT-t-TPD is consistent with its limited external quantum efficiency (EQE) response (lower than 40%). The present results demonstrate that extending the length of a pi-conjugated backbone by an appropriate pi-bridge in the D-A polymer improves the photovoltaic performance of PSCs.
文章类型	Article
WOS标题词	Science & Technology ; Technology ; Physical Sciences
DOI	10.1039/c6tc01238h
关键词[WOS]	ORGANIC SOLAR-CELLS ; OPEN-CIRCUIT VOLTAGE ; ACCEPTOR CONJUGATED POLYMERS ; POWER CONVERSION EFFICIENCY ; HIGH-PERFORMANCE ; SIDE-CHAINS ; SEMICONDUCTING POLYMERS ; COPOLYMERS ; TRANSISTORS ; BENZODITHIOPHENE
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) ; Shandong Province Postdoc Foundation(201301007) ; 51573205)
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000379492900012
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/8394
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, CAS Key Lab Biobased Mat, Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.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	Zheng, Huilin,Wang, Jiuxing,Chen, Weiye,et al. Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge[J]. JOURNAL OF MATERIALS CHEMISTRY C,2016,4(26):6280-6286.
APA	Zheng, Huilin.,Wang, Jiuxing.,Chen, Weiye.,Gu, Chuantao.,Ren, Junzhen.,...&Sun, Mingliang.(2016).Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge.JOURNAL OF MATERIALS CHEMISTRY C,4(26),6280-6286.
MLA	Zheng, Huilin,et al."Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge".JOURNAL OF MATERIALS CHEMISTRY C 4.26(2016):6280-6286.