作者：
Cao, Huaxiang;Li, Xinhua;Zhou, Bukang;Chen, Tao;Shi, Tongfei;Zheng, Jianqiang;Liu, Guangqiang;Wang, Yuqi
作者机构：
Key Laboratory of Material Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
University of Science and Technology of China, Hefei, 230026, People's Republic of China
Key Laboratory of Material Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China. xinhuali@issp.ac.cn
通讯机构：
Key Laboratory of Material Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
语种：
英文
关键词：
Metal-assisted chemical etching - Morphology evolution - Nano Sphere Lithography - Nanowire arrays - Polystyrene particle - Quantitative description - Thermal oxidation - Thermal oxidation process
期刊：
Nanoscale Research Letters
ISSN：
19317573
年：
2017
卷：
12
期：
1
文献类别：
pubmed:Journal Article;EI
所属学科：
WOS学科类别:Nanoscience & Nanotechnology;Materials Science, Multidisciplinary;Physics, Applied;ESI学科类别:Physics;EI学科类别:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 761 Nanotechnology - 802.2 Chemical Reactions - 815.1.1 Organic Polymers - 921 Mathematics - 933 Solid State Physics
基金类别：
National Natural Science Foundation of China [51472247, 51671182]
摘要：
We demonstrate the fabrication of the large-area arrays of vertically aligned Si/SiO<inf>2</inf>nanowires with full tunability of the geometry of the single nanowires by the metal-assisted chemical etching technique and the following thermal oxidation process. To fabricate the geometry controllable Si/SiO<inf>2</inf>nanowire (NW) arrays, two critical issues relating with the size control of polystyrene reduction and oxide thickness evolution are investigated. Through analyzing the morphology evolutions of polystyrene particles, we give a quantitative description on the diameter variations of polystyrene particles with the etching time of plasma etching. Based on this, pure Si NW arrays with controllable geometry are generated. Then the oxide dynamic of Si NW is analyzed by the extended Deal-Grove model. By control, the initial Si NWs and the thermal oxidation time, the well-aligned Si/SiO<inf>2</inf>composite NW arrays with controllable geometry are obtained. ©2017, The Author(s).
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