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Morphology and Growth Process of Bat-like ZnO Crystals by Thermal Evaporation
Pin Gao,Kai Wang,Chao Huang,Lu Meng,Fa-qiang Xu
Author NameAffiliationE-mail
Pin Gao   
Kai Wang 
National Synchrotron Radiation Laboratory
, University of Science and Technology of China, Hefei 230026, China
 
 
Chao Huang 
National Synchrotron Radiation Laboratory
, University of Science and Technology of China, Hefei 230026, China
 
 
Lu Meng 
National Synchrotron Radiation Laboratory
, University of Science and Technology of China, Hefei 230026, China
 
 
Fa-qiang Xu 
National Synchrotron Radiation Laboratory
, University of Science and Technology of China, Hefei 230026, China
 
fqxu@ustc.edu.cn 
Abstract:
A novel bat-like ZnO nanostructure was synthesized on the silicon substrate by simple ther-mal evaporation of zinc powders without any catalyst. Each bat-like nanorod ("nanobat") is composed of a hexagonal head, a continuous neck and a thin handle. High-resolution transmission electron microscopy and selected area electron di raction results reveal the single-crystalline feature and the growing direction along [0001] of the nanobat. The vapor-solid mechanism was found suitable to explain the growth process of the nanobat and a schematic model was proposed in detail based on the experimental results.
Key words:  ZnO  Thermal evaporation  Nanostructure  Growth process
FundProject:This work is supported by Scienti c Research Grant of Hefei Science Center of Chinese Academy of Science (No.2015SRG-HSC032) and the National Natural Sci-ence Foundation of China (No.U1232137).
热蒸发法制备的球棒状氧化锌晶体的形貌及生长过程
高品,王凯,黄超,孟路,徐法强
摘要:
在不用催化剂的条件下,通过热蒸发锌粉的方法,一种新颖的球棒状的氧化锌纳米结构被沉积在硅基片上.每一根球棒状的氧化锌纳米棒("纳米球棒")由三部分构成,分别是六边形"球棒头"、"球棒把手"以及一个连接过渡的部分.高分辨率透射电镜和选区电子衍射结果表明,纳米棒呈单晶特性,沿着[0001]方向择优生长.根据对实验结果的分析,纳米球棒的生长过程可以利用气-固生长机制进行解释,合理地提出其生长模型.
关键词:  氧化锌  热蒸发  纳米结构  生长过程
DOI:10.1063/1674-0068/29/cjcp1512258
分类号: