过饱和度
成核
试剂
化学气相沉积
纳米颗粒
纳米技术
材料科学
纳米结构
晶体生长
过程(计算)
沉积(地质)
粒径
工作(物理)
化学工程
化学物理
化学
热力学
计算机科学
结晶学
物理化学
物理
有机化学
古生物学
工程类
操作系统
生物
沉积物
作者
Youguo Yan,C. Y. Li,Lixia Zhou,Wenhui Xiong,J. Zhang
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2016-01-01
卷期号:8 (28): 13708-13713
被引量:3
摘要
Rational regulation of the size and uniformity of nanoparticles has drawn great interests and shown widespread application, but this cannot be simply achieved by the vapor route. In this work, by adopting a chemical vapor deposition approach, the growth process was intricately regulated to guide the reagent supersaturation, and the large-scale growth of uniform-sized In2O3 nanooctahedra was realized. A one-time nucleation and synchronous growth mode controlled by the reagent supersaturation ratio is proposed to be responsible for the uniformity of size. Furthermore, a series of comparative experiments were conducted to study the size dependence on reaction duration, and temperature difference between the heating and depositing zones. This study demonstrates a feasible approach to prepare uniform-sized nanoparticles through precisely controlling the crystal growth process, and the developed growth strategy could be generalized to synthesize uniform-sized nanostructures of other material systems.
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