Improved photovoltaic performance of star-shaped molecules with a triphenylamine core by tuning the substituted position of the carbazolyl unit at the terminal

doi:10.1039/c5ta00166h

QIBEBT-IR > 先进有机功能材料研究组

	Improved photovoltaic performance of star-shaped molecules with a triphenylamine core by tuning the substituted position of the carbazolyl unit at the terminal
	Zhou, Pei 1; Dang, Dongfeng 1; Xiao, Manjun 1,2; Wang, Qiong 1; Zhong, Juan 1; Tan, Hua 1; Pei, Yong 1; Yang, Renqiang 2; Zhu, Weiguo 1
	2015
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
卷号	3 期号:20 页码:10883-10889
摘要	Two star-shaped molecules of TPA(BT-2Cz)(3) and TPA(BT-3Cz)(3) with a triphenyl-amine (TPA) core were designed and synthesized, in which 2- and 3-carbazolyl units (2Cz and 3Cz) are attached to the benzothiadiazole (BT) arms as planar terminal groups, respectively. Although both molecules show a similar broad UV-Vis absorption covering from 300 nm to 560 nm, different photovoltaic performances were observed owing to the varied linked positions of terminal carbazolyl units. In contrast to TPA(BT-2Cz) 3-based solar cells, solution-processable organic solar cells (OSCs) based on TPA(BT-3Cz)(3) exhibited better photovoltaic performance with the maximum power conversion efficiency up to 3.94% and an enhanced short-circuit current of 8.80 mA cm(-2). This work further demonstrates that tuning the substituted position of the terminal carbazolyl group can significantly improve the photovoltaic performance of its resulting small molecules.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1039/c5ta00166h
关键词[WOS]	ORGANIC SOLAR-CELLS ; PROCESSED SMALL MOLECULES ; OPEN-CIRCUIT VOLTAGE ; CONJUGATED POLYMERS ; BENZODITHIOPHENE UNIT ; ELECTRONIC-PROPERTIES ; RATIONAL DESIGN ; DONOR ; ACCEPTOR ; EFFICIENCY
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000354395400034
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6488
专题	先进有机功能材料研究组
作者单位	1.Xiangtan Univ, Key Lab Environm Friendly Chem & Applicat, Dept Chem, Minist Educ, Xiangtan 411105, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Pei,Dang, Dongfeng,Xiao, Manjun,et al. Improved photovoltaic performance of star-shaped molecules with a triphenylamine core by tuning the substituted position of the carbazolyl unit at the terminal[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(20):10883-10889.
APA	Zhou, Pei.,Dang, Dongfeng.,Xiao, Manjun.,Wang, Qiong.,Zhong, Juan.,...&Zhu, Weiguo.(2015).Improved photovoltaic performance of star-shaped molecules with a triphenylamine core by tuning the substituted position of the carbazolyl unit at the terminal.JOURNAL OF MATERIALS CHEMISTRY A,3(20),10883-10889.
MLA	Zhou, Pei,et al."Improved photovoltaic performance of star-shaped molecules with a triphenylamine core by tuning the substituted position of the carbazolyl unit at the terminal".JOURNAL OF MATERIALS CHEMISTRY A 3.20(2015):10883-10889.