Pyridine-bridged diketopyrrolopyrrole conjugated polymers for   field-effect transistors and polymer solar cells

doi:10.1039/c5py00538h

CORC > 北京大学 > 工学院

	Pyridine-bridged diketopyrrolopyrrole conjugated polymers for field-effect transistors and polymer solar cells
	Zhang, Xiaotao ; Xiao, Chengyi ; Zhang, Andong ; Yang, Fangxu ; Dong, Huanli ; Wang, Zhaohui ; Zhan, Xiaowei ; Li, Weiwei ; Hu, Wenping
刊名	POLYMER CHEMISTRY
	2015
关键词	BAND-GAP POLYMERS PHOTOVOLTAIC APPLICATIONS BUILDING-BLOCK TANDEM POLYMER HOLE MOBILITY MAIN-CHAIN PERFORMANCE COPOLYMERS SEMICONDUCTORS EFFICIENCY
DOI	10.1039/c5py00538h
英文摘要	Five wide or medium band gap diketopyrrolopyrrole (DPP)-based conjugated polymers with pyridine as bridges were developed for organic field-effect transistors (OFETs) and polymer solar cells (PSCs). By introducing copolymerized aromatic building blocks from strong electron-donating units to electron-deficient units into the conjugated backbone, the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels of the DPP polymers were tailored to the low-lying position. Therefore, the polarity of charge transport in OFETs can be switched from p-type to n-type. The DPP polymer with a low-lying LUMO of -3.80 eV provides a hole-only mobility of 2.95 x 10(-2) cm(2) V-1 s(-1), while an electron-only mobility of 1.24 x 10(-3) cm(2) V-1 s(-1) is found in the DPP polymer with a LUMO of -4.22 eV. Further investigation of photovoltaic cells based on these DPP polymers shows a modest power conversion efficiency (PCE) of around 2%. Our results demonstrate that wide band gap pyridine-bridged DPP polymers have potential application in OFETs and OSCs by adjusting their energy level with alternated units on the conjugated backbone.; Recruitment Program of Global Youth Experts of China; Ministry of Science and Technology of China [2014CB643600, 2013CB933500]; Chinese Academy of Sciences [XDB12030300]; SCI(E); EI; ARTICLE; liweiwei@iccas.ac.cn; huwp@iccas.ac.cn; 26; 4775-4783; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/421191]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Xiaotao,Xiao, Chengyi,Zhang, Andong,et al. Pyridine-bridged diketopyrrolopyrrole conjugated polymers for field-effect transistors and polymer solar cells[J]. POLYMER CHEMISTRY,2015.
APA	Zhang, Xiaotao.,Xiao, Chengyi.,Zhang, Andong.,Yang, Fangxu.,Dong, Huanli.,...&Hu, Wenping.(2015).Pyridine-bridged diketopyrrolopyrrole conjugated polymers for field-effect transistors and polymer solar cells.POLYMER CHEMISTRY.
MLA	Zhang, Xiaotao,et al."Pyridine-bridged diketopyrrolopyrrole conjugated polymers for field-effect transistors and polymer solar cells".POLYMER CHEMISTRY (2015).