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论文类型：期刊论文

发表时间：2010-03-18

发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS

收录刊物：SCIE、EI

卷号：493

期号：1-2

页面范围：471-475

ISSN号：0925-8388

关键字：Sulfate ion; Phase evolution; Electrochemical deposition; ZnO; Zinc hydroxysulfate

摘要：The effects of SO(4)(2-) ion concentrations on the phase evolution of electrochemical deposited films have been investigated using scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), X-ray diffraction (xRD) and Fourier transform infrared spectroscopy (FTIR). The results show that SO(4)(2-) ion concentration plays a very important role in directing the phase evolution of thick films from rod-like ZnO to plate-like zinc hydroxysulfate under fast hydroxylation. When ZnSO(4) concentrations are below 054 mM, the oriented growth of ZnO rods tends to be enhanced with the increase of ZnSO(4) concentration. Otherwise, the vertically aligned zinc hydroxysulfate plates can be formed by the introduction of SO(4)(2-) ions in nanocrystals. (C) 2009 Elsevier B.V. All rights reserved.