Preparation and employment of carbon nanodots to improve electron extraction capacity of polyethylenimine interfacial layer for polymer solar cells

	Preparation and employment of carbon nanodots to improve electron extraction capacity of polyethylenimine interfacial layer for polymer solar cells
	Zhang, X. Y.; Z. Q. Li; Z. H. Zhang; C. Y. Liu; J. F. Li; W. B. Guo; L. Shen and S. N. Qu
	2016
发表期刊	Organic Electronics
卷号	33
摘要	In this article, we introduce a new method to assist hole extraction by incorporating carbon nanodots (CNDs) interfacial layer between active layer and hole transporting layer for organic solar cells (OSCs). Under an optimal concentration of CNDs and specific film-forming conditions, a simultaneous enhancement of short-circuit current density (J(SC)) and fill factor (FF) was achieved, leading to the optimal power conversion efficiency up to 7.22%. Due to the nice conductivity of CNDs, the interlayer effectively bridged the separated islands of active layer to transport free charge carriers toward correct electrodes and reduced charge carrier recombination. The employment of interface modification depicted here can also provide a rough and uniform surface coating on polymer photolayer, leading to improved morphology and closer interface contact, and thus reduce the series resistance and increase FF of OSCs. In addition, the incorporation of CNDs also increased the light-harvesting of active layer. Therefore, the CNDs interfacial layer could play a dual role in the improvement of optical and electrical properties for OSCs.
文章类型	期刊
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57445
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang, X. Y.,Z. Q. Li,Z. H. Zhang,et al. Preparation and employment of carbon nanodots to improve electron extraction capacity of polyethylenimine interfacial layer for polymer solar cells[J]. Organic Electronics,2016,33.
APA	Zhang, X. Y..,Z. Q. Li.,Z. H. Zhang.,C. Y. Liu.,J. F. Li.,...&L. Shen and S. N. Qu.(2016).Preparation and employment of carbon nanodots to improve electron extraction capacity of polyethylenimine interfacial layer for polymer solar cells.Organic Electronics,33.
MLA	Zhang, X. Y.,et al."Preparation and employment of carbon nanodots to improve electron extraction capacity of polyethylenimine interfacial layer for polymer solar cells".Organic Electronics 33(2016).

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