Uniform deposition of coupled CdS and CdSe quantum dots on ZnO nanorod arrays as electrodes for photoelectrochemical solar water splitting

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Title:	Uniform deposition of coupled CdS and CdSe quantum dots on ZnO nanorod arrays as electrodes for photoelectrochemical solar water splitting
Authors:	林進榮;Lin, Chin-Jung;Kao, Li-Cheng;Huang, Yu;Bañares, Miguel A.;Liou, Sofia Ya-Hsuan
Contributors:	工學院環境工程研究所
Keywords:	Arrays;Cadmium selenides;Cadmium sulfides;Deposition;Intermetallics;Nanostructure;Photoanode;Quantum dots;Solar water splitting;Surface chemistry;Water splitting;Zinc oxide;ZnO nanowire
Date:	2015-01-01
Issue Date:	2026-04-23 15:10:08 (UTC+8)
Publisher:	Elsevier Ltd.;Elsevier Ltd
Abstract:	摘要： A modified successive ionic layer adsorption and reaction (SILAR) process was used for deposition of coupled CdS and CdSe quantum dots (QDs) on the surface of orientated ZnO nanorod arrays. This solution-based process provides a conformal and homogeneous QDs deposition along the ZnO nanorod arrays with no entry clogging. The prepared multi-heterojunction CdSe/CdS/ZnO nanorod-arrayed photoanodes are highly visible-light-sensitive and show improved ion diffusion and effective suppression of electron–hole pair recombination. For photoeletrochemical solar water splitting, the photoanode prepared using the modified SILAR outperformed that using the conventional SILAR by >15% improvement in solar-to-hydrogen conversion efficiency. [Display omitted] •CdS/CdSe QDs conformally on ZNR arrays were prepared by a modified SILAR process.•Improved ion diffusion and effective suppression of e−/h+ pair recombination.•15% efficiency was increased using the photoanode with the modified SILAR process. 出版者： Elsevier Ltd 出版日期： 2015-01-21 出處： International journal of hydrogen energy, 2015-01, Vol.40 (3), p.1388-1393 資源來源： Elsevier ScienceDirect 版權： 2014 Hydrogen Energy Publications, LLC. 識別號： ISSN: 0360-3199 識別號： EISSN: 1879-3487 識別號： DOI: 10.1016/j.ijhydene.2014.11.070
Appears in Collections:	[Graduate Institute of Environmental Engineering ] journal & Dissertation

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