Few-layered graphene quantum dots as efficient hole-extraction layer for high-performance polymer solar cells

	Few-layered graphene quantum dots as efficient hole-extraction layer for high-performance polymer solar cells
	Ding, Zicheng 1; Hao, Zhen 1; Meng, Bin 1; Xie, Zhiyuan 1; Liu, Jun 1; Dai, Liming 2
刊名	NANO ENERGY
	2015-07-01
卷号	15 页码:186-192
关键词	Grapherie quantum dots Grapherie oxide Work function Hole-extraction layer Polymer solar cell
英文摘要	In this study, we demonstrate that few-layered graphene quantum dots (F-GQDs) can be used as hole-extraction layer (HEL) for high efficiency polymer solar cells (PSCs). As a new class of HEL material, graphene oxide (GO) is not suitable for polymer solar cells (PSCs) based on highly efficient donor polymers due to the relatively low work function and the poor film-forming property of GO. To circumvent these two problems, we develop F-GQDs with a small size of about 4 nm and high content of periphery COOH groups. The small size of F-GQD ensures an excellent film-forming capability and the abundant COOH groups increase the work function of F-GQD to 5.26 eV from 5.01 eV of GO. As the result, when used as HEL in high efficiency PSC devices with PTB7:PC71BM or PCDTBT:PC71BM as the active layer, F-GQDs outperforms GO and the state-of-the-art HEL, PEDOT:PSS. These results demonstrate the great potential of F-GQD as efficient HELs to achieve high-performance PSCs. (C) 2015 Published by Elsevier Ltd.
收录类别	SCI
语种	英语
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/29234]
专题	化学研究所_高分子物理与化学实验室
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Case Western Reserve Univ, Case Sch Engn, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
推荐引用方式 GB/T 7714	Ding, Zicheng,Hao, Zhen,Meng, Bin,et al. Few-layered graphene quantum dots as efficient hole-extraction layer for high-performance polymer solar cells[J]. NANO ENERGY,2015,15:186-192.
APA	Ding, Zicheng,Hao, Zhen,Meng, Bin,Xie, Zhiyuan,Liu, Jun,&Dai, Liming.(2015).Few-layered graphene quantum dots as efficient hole-extraction layer for high-performance polymer solar cells.NANO ENERGY,15,186-192.
MLA	Ding, Zicheng,et al."Few-layered graphene quantum dots as efficient hole-extraction layer for high-performance polymer solar cells".NANO ENERGY 15(2015):186-192.