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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：中科院上海硅酸盐研究所
学位：博士
所在单位：物理学院
学科：微电子学与固体电子学. 凝聚态物理
办公地点：大连理工大学科技园C座301-1办公室
联系方式：E-mail:jmbian@dlut.edu.cn.
电子邮箱：jmbian@dlut.edu.cn
Controllable end shape modification of ZnO nano-arrays/rods by a simple wet chemical etching technique
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论文类型：期刊论文
发表时间：2015-09-16
发表刊物：JOURNAL OF PHYSICS D-APPLIED PHYSICS
收录刊物：SCIE、EI、Scopus
卷号：48
期号：36
ISSN号：0022-3727
关键字：1D ZnO nano-arrays/rods; wet etching; etching time; end shape
摘要：The well-aligned ZnO nano-arrays/rods synthesized by a chemical bath deposition method on a highly conductive Si substrate were chemically etched in an ammonia chloride aqueous solution. An obvious end shape modification of ZnO nano-arrays/rods was realized in this report. The hexagonal frustum end of ZnO nano-arrays/rods changed into a pyramid and the diameter of ZnO nano-arrays/rods decreased gradually with the increasing etching time. The evolution mechanism of the wet etching process was discussed based on a proposed evolution model. Photoluminescence measurements indicated that the near band edge emissions of ZnO nano-arrays/rods increased greatly after wet etching. The controllable end shape modification of ZnO nano-arrays/rods on a highly conductive Si substrate by this simple wet etching technique will further explore the application of ZnO in field emission devices and 1D based nano-devices with various end shapes.