Non-fullerene organic solar cells based on diketopyrrolopyrrole polymers as electron donors and ITIC as an electron acceptor

	Non-fullerene organic solar cells based on diketopyrrolopyrrole polymers as electron donors and ITIC as an electron acceptor
	Jiang, Xudong 1,2; Xu, Yunhua 1; Wang, Xiaohui 3; Wu, Yang 3; Feng, Guitao 1,2; Li, Cheng 2; Ma, Wei 3; Li, Weiwei 2
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2017
卷号	19 期号:11 页码:8069-8075
英文摘要	In this work, we provide systematic studies on the non-fullerene solar cells based on diketopyrrolopyrrole (DPP) polymers as electron donors and a well-known electron acceptor ITIC. ITIC has been widely reported in non-fullerene solar cells with high power conversion efficiencies (PCEs) above 10%, when it is combined with a wide band gap conjugated polymer, while its application in small band gap DPP polymers has never been reported. Herein, we select four DPP polymers containing different thienyl linkers, resulting in distinct absorption spectra, energy levels and crystalline properties. Non-fullerene solar cells based on DPP polymers as donors and ITIC as an acceptor show PCEs of 1.9-4.1% and energy loss of 0.55-0.82 eV. The PCEs are much lower than those of cells based on fullerene derivatives due to the poor miscibility between the DPP polymers and ITIC, as confirmed by the morphology and charge transport investigation. The results indicate that it is important to tune the miscibility between the donor and acceptor in order to realize optimized micro-phase separation, which can further enhance the performance of DPP polymer based non-fullerene solar cells.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38253]
专题	化学研究所_有机固体实验室
作者单位	1.Beijing Jiaotong Univ, Sch Sci, Dept Chem, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China 3.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Xudong,Xu, Yunhua,Wang, Xiaohui,et al. Non-fullerene organic solar cells based on diketopyrrolopyrrole polymers as electron donors and ITIC as an electron acceptor[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2017,19(11):8069-8075.
APA	Jiang, Xudong.,Xu, Yunhua.,Wang, Xiaohui.,Wu, Yang.,Feng, Guitao.,...&Li, Weiwei.(2017).Non-fullerene organic solar cells based on diketopyrrolopyrrole polymers as electron donors and ITIC as an electron acceptor.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,19(11),8069-8075.
MLA	Jiang, Xudong,et al."Non-fullerene organic solar cells based on diketopyrrolopyrrole polymers as electron donors and ITIC as an electron acceptor".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 19.11(2017):8069-8075.