Optimization of Solubility, Film Morphology and Photodetector Performance by Molecular Side-Chain Engineering of Low-Bandgap Thienothiadiazole-Based Polymers

doi:10.1002/adfm.201401948

CORC > 化学研究所 > 中国科学院化学研究所

	Optimization of Solubility, Film Morphology and Photodetector Performance by Molecular Side-Chain Engineering of Low-Bandgap Thienothiadiazole-Based Polymers
	Qi, Ji 1,2; Zhou, Xiaokang 1,2; Yang, Dezhi 1; Qiao, Wenqiang 1; Ma, Dongge 1; Wang, Zhi Yuan 1,3
刊名	ADVANCED FUNCTIONAL MATERIALS
	2014-12-23
卷号	24 期号:48 页码:7605-7612
ISSN号	1616-301X
DOI	10.1002/adfm.201401948
英文摘要	A series of donor-acceptor (D-A) type low-bandgap polymers containing the terthiophene and thieno[3,4-b]thiadiazole units in the main chain but different numbers of identical side chains are designed and synthesized in order to study the effect of side chain on the polymer properties and optimize the performance of polymer photodetectors. Variation in the side chain content can influence the polymer solubility, molecular packing, and film morphology, which in turn affects the photodetector performance, particularly with regard to the photoresponsivity and dark current. X-ray diffraction patterns indicate that molecular ordering increases with more side chains. Atomic force microscopy shows that appropriate morphology of the active layer in the polymer photodetector is necessary for high photocurrent and low dark current. Using BCP as a hole blocking layer (10 nm), the photodetector based on P4 exhibits the optimized performance with specific detectivity of 1.4 x 10(12) Jones at 800 nm, which is among the best reported values for polymer photodetectors and even comparable to that of a silicon photodetector.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000346498900005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51471]
专题	中国科学院化学研究所
通讯作者	Qi, Ji
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Carleton Univ, Dept Chem, Ottawa, ON K1S 5B6, Canada
推荐引用方式 GB/T 7714	Qi, Ji,Zhou, Xiaokang,Yang, Dezhi,et al. Optimization of Solubility, Film Morphology and Photodetector Performance by Molecular Side-Chain Engineering of Low-Bandgap Thienothiadiazole-Based Polymers[J]. ADVANCED FUNCTIONAL MATERIALS,2014,24(48):7605-7612.
APA	Qi, Ji,Zhou, Xiaokang,Yang, Dezhi,Qiao, Wenqiang,Ma, Dongge,&Wang, Zhi Yuan.(2014).Optimization of Solubility, Film Morphology and Photodetector Performance by Molecular Side-Chain Engineering of Low-Bandgap Thienothiadiazole-Based Polymers.ADVANCED FUNCTIONAL MATERIALS,24(48),7605-7612.
MLA	Qi, Ji,et al."Optimization of Solubility, Film Morphology and Photodetector Performance by Molecular Side-Chain Engineering of Low-Bandgap Thienothiadiazole-Based Polymers".ADVANCED FUNCTIONAL MATERIALS 24.48(2014):7605-7612.