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个人信息Personal Information
教授级高工
硕士生导师
任职 : 大连理工大学材料测试分析中心 负责人
性别：男
毕业院校：大连理工大学
学位：硕士
所在单位：材料科学与工程学院
学科：材料学
办公地点：大连理工大学材料科学与工程学院 材料实验中心 材料馆131
联系方式：15509867057 zoulong@dlut.edu.cn
电子邮箱：zoulong@dlut.edu.cn
Galvanic deposition of ZnO nanorods and thermal annealing effects on their optical properties
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论文类型：期刊论文
发表时间：2011-04-15
发表刊物：APPLIED SURFACE SCIENCE
收录刊物：SCIE、EI
卷号：257
期号：13
页面范围：5519-5523
ISSN号：0169-4332
关键字：ZnO; Galvanic deposition; Supporting electrolyte; Annealing; Photoluminescence
摘要：The effects of NaCl electrolyte concentrations in the range 6-48mM on the galvanic deposition of ZnO in Zn(Ac)(2) electrolyte is presented. Effects of thermal annealing on their structural and optical properties have been investigated by using scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy-dispersive X-ray (EDX) microanalysis and photoluminescence (PL). The results show that the increase of NaCl electrolyte concentration not only results in the increase of the diameter of ZnO nanorods, but also promotes the blue-shift of UV emission of ZnO. After air annealing at 200 degrees C, 300 degrees C and 400 degrees C, the UV emission is first enhanced then quenched sharply, while the visible emission tends to be enhanced tremendously. It can be ascribed to the new defect states introduced in ZnO after annealing at high temperature. (C) 2011 Elsevier B. V. All rights reserved.