New conjugated molecules with four DPP (diketopyrrolopyrrole) moieties linked by [2,2]paracyclophane as electron acceptors for organic photovoltaic cells

	New conjugated molecules with four DPP (diketopyrrolopyrrole) moieties linked by [2,2]paracyclophane as electron acceptors for organic photovoltaic cells
	Yang, Yang; Zhang, Guanxin; Yu, Chenmin; Yao, Jingjing; Liu, Zitong; Zhang, Deqing
刊名	NEW JOURNAL OF CHEMISTRY
	2015
卷号	39 期号:8 页码:6421-6427
英文摘要	In this paper, we report two conjugated molecules 1 and 2 with four diketopyrrolopyrrole (DPP) moieties, which are linked by [2,2]paracyclophane. The energies of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of 1 and 2 were estimated from the respective onset oxidation and reduction potentials, which were determined on the basis of cyclic voltammetric data. Both 1 and 2 exhibit strong absorption in the visible region. Blended thin films of 1 and 2 with P3HT (poly(3-hexylthiophene)) in different weight ratios were utilized as active layers to fabricate solar cells. The results reveal that blended thin films of P3HT/1 and P3HT/2 at a weight ratio of 2 : 1 yielded the best photovoltaic performance with power conversion efficiencies (PCEs) up to 1.33% and 1.84% after thermal annealing. Blended thin films of P3HT/1 and P3HT/2 were characterized by XRD (X-ray diffraction) and AFM (atomic force microscopy) techniques. The low degree of inter-chain packing order and poor thin-film morphology are responsible for the relatively low PCEs.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/27769]
专题	化学研究所_有机固体实验室
作者单位	Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Organ Solids Lab, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yang,Zhang, Guanxin,Yu, Chenmin,et al. New conjugated molecules with four DPP (diketopyrrolopyrrole) moieties linked by [2,2]paracyclophane as electron acceptors for organic photovoltaic cells[J]. NEW JOURNAL OF CHEMISTRY,2015,39(8):6421-6427.
APA	Yang, Yang,Zhang, Guanxin,Yu, Chenmin,Yao, Jingjing,Liu, Zitong,&Zhang, Deqing.(2015).New conjugated molecules with four DPP (diketopyrrolopyrrole) moieties linked by [2,2]paracyclophane as electron acceptors for organic photovoltaic cells.NEW JOURNAL OF CHEMISTRY,39(8),6421-6427.
MLA	Yang, Yang,et al."New conjugated molecules with four DPP (diketopyrrolopyrrole) moieties linked by [2,2]paracyclophane as electron acceptors for organic photovoltaic cells".NEW JOURNAL OF CHEMISTRY 39.8(2015):6421-6427.