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论文类型：期刊论文
发表时间：2007-03-30
发表刊物：APPLIED SURFACE SCIENCE
收录刊物：SCIE、EI
卷号：253
期号：11
页面范围：5161-5165
ISSN号：0169-4332
关键字：ZnO; controllable etching; NH4Cl aqueous solution
摘要：ZnO films were deposited one-plane Al2O3 substrates by pulsed laser deposition. The etching treatments for as-grown ZnO films were performed in NH4Cl aqueous solution as a function of NH4Cl concentration and etching time. It was found that NH4Cl Solution is an appropriate candidate for ZnO wet etching because of its controllable and moderate etching rate. The influence of etching treatment on the morphology, optical and electrical properties of the ZnO films has been investigated systematically by means of X-ray diffraction, atomic force microscope, photoluminescence and Hall effect. The results indicated that the Surface morphology and optical properties of the films were highly influenced by etching treatment. (c) 2006 Elsevier B.V. All rights reserved.