Chen, Chih KaiChih KaiChenShen, Yen-PingYen-PingShenChen, Hao MingHao MingChenCHIH-JUNG CHENChan, Ting-ShanTing-ShanChanLee, Jyh-FuJyh-FuLeeRU-SHI LIU2018-09-102018-09-102014http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000336741600022&KeyUID=WOS:000336741600022http://scholars.lib.ntu.edu.tw/handle/123456789/384963Fossil fuels have been used for several decades and have resulted in increased greenhouse gases and pollutants. Currently, clean and renewable energy is in demand. Hydrogen appears to be a good candidate for clean energy because the only product of its reaction with oxygen is water. Water splitting by solar energy is a potential method for the generation of hydrogen in future applications. This study investigates the use of a CdTe quantum-dot-sensitized ZnO:N nanowire arrays for water splitting. The proposed method resulted in considerably enhanced photocurrent and stability. The electronic structures of the ZnO:N materials are also determined by O K-edge X-ray absorption spectroscopy. The incorporation of nitrogen into the ZnO nanostructure is determined by X-ray photoelectron spectroscopy and Zn K-edge X-ray absorption spectroscopy; the nitrogen incorporation changes the electronic state and, thus, increases the water-splitting performance. We have prepared a photoelectrode by sensitization of a ZnO:N nanowire array by CdTe quantum dots. The photoelectrode improves the harvest of visible light significantly and, thus, enhances the photoelectrochemical cell performance. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Doping; Quantum dots; Water splitting; Zinc[SDGs]SDG7journal article10.1002/ejic.2013013102-s2.0-84893266960WOS:000336741600022