One-Step Electrochemical Deposition of Hierarchical CuS Nanostructures on Conductive Substrates as Robust, High-Performance Counter Electrodes for Quantum-Dot-Sensitized Solar Cells

doi:10.1021/jp505737u

CORC > 化学研究所 > 中国科学院化学研究所

	One-Step Electrochemical Deposition of Hierarchical CuS Nanostructures on Conductive Substrates as Robust, High-Performance Counter Electrodes for Quantum-Dot-Sensitized Solar Cells
	Wang, Feifan 1,2; Dong, Hui 1; Pan, Jinlong 1; Li, Jingjian 1; Li, Qi 1; Xu, Dongsheng 1,2
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2014-08-28
卷号	118 期号:34 页码:19589-19598
ISSN号	1932-7447
DOI	10.1021/jp505737u
英文摘要	An ideal counter electrode, with high electrocatalytic activity, high performance stability, and applicable fabrication simplicity, is essential to give full play to the advantages of quantum-dot-sensitized solar cells (QDSSCs) such as high theoretical efficiency and simple synthetic procedure. Herein, we report a facile one-step electrochemical deposition approach for the growth of hierarchical covellite (CuS) nanostructures on conductive glass substrates. The as-synthesized copper sulfide can be employed directly as a robust, low-cost, and high-efficiency counter electrode without any post-treatments for QDSSCs filled with aqueous sulfide/polysulfide (S2-/S-n(2-)) electrolyte. The morphology and structure of the well-crystalline, strongly substrate-adhesive hierarchical CuS nanostructured film have been studied by X-ray and electron-based characterizations. QDSSC using this newly synthesized CuS as counter electrode achieves a higher power conversion efficiency of 4.32% than the one applying cuprous sulfide (Cu2S) on brass substrate (4.08%) or platinum counter electrode (2.85%). Furthermore, this CuS counter electrode shows a high and consistent electrocatalytic activity toward polysulfide reduction confirmed by the electrochemical measurements, destining the improved photovoltaic performance and superior stability of the corresponding QDSSC device.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000341122200010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/53087]
专题	中国科学院化学研究所
通讯作者	Xu, Dongsheng
作者单位	1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Wang, Feifan,Dong, Hui,Pan, Jinlong,et al. One-Step Electrochemical Deposition of Hierarchical CuS Nanostructures on Conductive Substrates as Robust, High-Performance Counter Electrodes for Quantum-Dot-Sensitized Solar Cells[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2014,118(34):19589-19598.
APA	Wang, Feifan,Dong, Hui,Pan, Jinlong,Li, Jingjian,Li, Qi,&Xu, Dongsheng.(2014).One-Step Electrochemical Deposition of Hierarchical CuS Nanostructures on Conductive Substrates as Robust, High-Performance Counter Electrodes for Quantum-Dot-Sensitized Solar Cells.JOURNAL OF PHYSICAL CHEMISTRY C,118(34),19589-19598.
MLA	Wang, Feifan,et al."One-Step Electrochemical Deposition of Hierarchical CuS Nanostructures on Conductive Substrates as Robust, High-Performance Counter Electrodes for Quantum-Dot-Sensitized Solar Cells".JOURNAL OF PHYSICAL CHEMISTRY C 118.34(2014):19589-19598.