Ladder-type nonacyclic indacenodithieno[3,2-b]indole for highly   efficient organic field-effect transistors and organic photovoltaics

doi:10.1039/c7tc02912h

CORC > 北京大学 > 工学院

	Ladder-type nonacyclic indacenodithieno[3,2-b]indole for highly efficient organic field-effect transistors and organic photovoltaics
	Zhao, Baomin ; Yan, Cenqi ; Wang, Zheng ; Huang, Hongyan ; Hu, Yueming ; Cheng, Pei ; Yi, Mingdong ; Huang, Chengting ; Zhan, Xiaowei ; Huang, Wei
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2017
关键词	POLYMER SOLAR-CELLS CONJUGATED POLYMERS HIGH-PERFORMANCE ELECTRON-ACCEPTORS CHARGE-TRANSPORT SEMICONDUCTORS MOBILITY DESIGN HETEROACENES
DOI	10.1039/c7tc02912h
英文摘要	Developing electron-donating building blocks for organic semiconductors is still one big chemical challenge to achieve high performance active materials for organic photovoltaics (OPVs). In this work, we have successfully designed and synthesized a novel ladder-type nonacyclic indacenodithieno[3,2-b]indole (IDTI) unit via intramolecular annulation with rigid and coplanar features. Two donor-acceptor copolymers of PIDTI-BT and PIDTI-DTBT were synthesized by utilizing the Suzuki and Stille coupling polymerization method with IDTI units. Both copolymers displayed excellent solubility, high thermal stability, broad absorption and a low band gap. The FET hole mobility reaches 2.1 x 10(-2) and 1.4 x 10(-2) cm(2) V-1 s(-1) for PIDTI-BT and PIDTI-DTBT, respectively. The conventional bulk-heterojunction (BHJ) polymer solar cell (PSC) devices based on the PIDTI-BT : PC71BM (1 : 2 in wt%) blend exhibit a moderate PCE of 4.02% with a V-oc of 0.82 V, a J(sc) of 8.99 mA cm(-2) and a FF of 54.6% under AM 1.5G, 100 mW cm(-2) illumination, which is among the highest values for polymer donor materials based on multifused TI units. The improved performance may be associated with the extended conjugation length, which optimizes the interchain interactions and improves molecular organization for accelerating charge transport. Our results demonstrate that the multifused nonacyclic TIBDP as the donor unit is very promising for application in PSCs and FETs.; National Basic Research Program of China-Fundamental Studies of Perovskite Solar Cells [2015CB932200]; National Natural Science Foundation of China [51103074, 51203077, 61475074]; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD); Program for Changjiang Scholars and Innovative Research Team in University [IRT-15R37]; Specialized Research Fund for Key laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University) [LLEUTS-201704]; Synergetic Innovation Center for Organic Electronics and Information Displays; SCI(E); ARTICLE; 35; 8988-8998; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/470783]
专题	工学院
推荐引用方式 GB/T 7714	Zhao, Baomin,Yan, Cenqi,Wang, Zheng,et al. Ladder-type nonacyclic indacenodithieno[3,2-b]indole for highly efficient organic field-effect transistors and organic photovoltaics[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017.
APA	Zhao, Baomin.,Yan, Cenqi.,Wang, Zheng.,Huang, Hongyan.,Hu, Yueming.,...&Huang, Wei.(2017).Ladder-type nonacyclic indacenodithieno[3,2-b]indole for highly efficient organic field-effect transistors and organic photovoltaics.JOURNAL OF MATERIALS CHEMISTRY C.
MLA	Zhao, Baomin,et al."Ladder-type nonacyclic indacenodithieno[3,2-b]indole for highly efficient organic field-effect transistors and organic photovoltaics".JOURNAL OF MATERIALS CHEMISTRY C (2017).