Interfacial engineering of ZnO nanoarrays as electron transport layer for polymer solar cells

	Interfacial engineering of ZnO nanoarrays as electron transport layer for polymer solar cells
	Fu, Haiyan 1; Li, Bing 1; Meng, Xiangchuan 1; Tan, Licheng 1,2; Shen, Xingxing 3; Chen, Yiwang 1,2
刊名	ORGANIC ELECTRONICS
	2015-11-01
卷号	26 页码:487-494
关键词	Nanoarrays Zinc oxide Core/shells pi-pi interactions Polymer solar cells
英文摘要	Highly uniform one-dimensional ZnO nanoarrays (ZnO NAs) fabricated by hydrothermal process were successfully explored as electron transport layer (ETL) for offering a direct and efficient path for electron transport in inverted polymer solar cells (PSCs). The inorganic CdS shell layer by in situ growth on the ZnO NAs surface was used to passivate and repair the surface defects of ZnO NAs. To further engineer the ZnO surface and improve the compatibility between ETL of inorganic ZnO/CdS core/shell and polymer blend contact junction, those organic molecules of 3,6,7,10,11-pentakis-(hexyloxy)-2-hydroxytriphenylene (TP-OH), 1-pyrenol (Py-OH) and 4'-(7-hydroxy-heptanoyl)-biphenyl-4-carbonitrile (BP-OH) were respectively spin-coated on the ZnO NAs/CdS surface to fabricate ETL based on ZnO/CdS/TP-OH NAs, ZnO/CdS/Py-OH NAs, ZnO/CdS/BP-OH NAs. The pi-pi interactions between the organic molecules and fullerene acceptors could lead to the well-organized distribution of active layer materials, which is in favor of the enhancement of electron selectivity and the reduction of recombination probability of electrons and holes. The incorporation of ZnO/CdS/Py-OH NAs as ETL into the inverted PSCs based on P3HT:PC61BM resulted in a superior power conversion efficiency (PCE) of 4.2% with enhanced short circuit current (J(sc)) and fill factor (FF), compared to 3.1% for bare ZnO NAs, due to the intermolecular close-stacking and relative stronger pi-pi interaction energy between Py-OH and fullerenes. In addition, the sensitized ZnO surface led to intimate interface between ETL and active layer, which would be in favor of increasing the stability of the device. (C) 2015 Elsevier B.V. All rights reserved.
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/121111/27633]
专题	化学研究所_有机固体实验室
作者单位	1.Nanchang Univ, Inst Polymers, Sch Mat Sci & Engn, Nanchang 330031, Peoples R China 2.Nanchang Univ, Coll Chem, Jiangxi Prov Key Lab New Energy Chem, Nanchang 330031, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Fu, Haiyan,Li, Bing,Meng, Xiangchuan,et al. Interfacial engineering of ZnO nanoarrays as electron transport layer for polymer solar cells[J]. ORGANIC ELECTRONICS,2015,26:487-494.
APA	Fu, Haiyan,Li, Bing,Meng, Xiangchuan,Tan, Licheng,Shen, Xingxing,&Chen, Yiwang.(2015).Interfacial engineering of ZnO nanoarrays as electron transport layer for polymer solar cells.ORGANIC ELECTRONICS,26,487-494.
MLA	Fu, Haiyan,et al."Interfacial engineering of ZnO nanoarrays as electron transport layer for polymer solar cells".ORGANIC ELECTRONICS 26(2015):487-494.