Effect of hydrogen treatment on the photoelectrochemical properties of quantum dots sensitized ZnO nanorod array

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	Effect of hydrogen treatment on the photoelectrochemical properties of quantum dots sensitized ZnO nanorod array
	Bu, Yuyu; Chen, Zhuoyuan
刊名	JOURNAL OF POWER SOURCES
	2014-12-25
卷号	272 页码:647-653
关键词	Hydrogen treatment ZnO nanorod array Quantum dots Photoelectrochemical property Oxygen vacancy
通讯作者	Chen, ZY (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
英文摘要	The hydrogenated ZnO nanorod array (NRA) was, for the first time, applied to the field of quantum dots (QDs) sensitized photoanodes. Hydrogen treatment at high temperature can significantly change the surface states of ZnO NRA. Partial oxygen atoms on the surface of ZnO are taken away by hydrogen, resulting in the formation of oxygen vacancies. The formation of oxygen vacancies significantly enhances the charge carrier density and the electron migration ability of ZnO NRA. Meanwhile, the energy barrier of the injection of the photoinduced electrons generated by CdS into ZnO NRA decreases due to the formation of doping energy levels under the conducting band of ZnO. Therefore, the photoelectrochemical performance of CdS QDs sensitized hydrogenated ZnO NRA is significantly improved. This work has potential significance in enhancing the performance of QDs sensitized solar cell as well as dye sensitized solar cell. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Electrochemistry; Energy & Fuels
收录类别	SCI
语种	英语
WOS记录号	WOS:000344208700080
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/23868]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
作者单位	Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Bu, Yuyu,Chen, Zhuoyuan. Effect of hydrogen treatment on the photoelectrochemical properties of quantum dots sensitized ZnO nanorod array[J]. JOURNAL OF POWER SOURCES,2014,272:647-653.
APA	Bu, Yuyu,&Chen, Zhuoyuan.(2014).Effect of hydrogen treatment on the photoelectrochemical properties of quantum dots sensitized ZnO nanorod array.JOURNAL OF POWER SOURCES,272,647-653.
MLA	Bu, Yuyu,et al."Effect of hydrogen treatment on the photoelectrochemical properties of quantum dots sensitized ZnO nanorod array".JOURNAL OF POWER SOURCES 272(2014):647-653.