蒲公英状氧化镓纳米线的制备与表征

doi:10.3976/j.issn.1002-4026.2014.06.019

山东科学 ›› 2014, Vol. 27 ›› Issue (6): 108-112.doi: 10.3976/j.issn.1002-4026.2014.06.019

• 论文 • 上一篇

蒲公英状氧化镓纳米线的制备与表征

刘永峰，李玉国，王玉萍

山东师范大学物理与电子科学学院，山东济南 250014

收稿日期:2014-06-24 出版日期:2014-12-20 发布日期:2014-12-20
基金资助:
教育部留学回国人员科研启动基金

Preparation and characterization of dandelionlike Ga2O3 nanowires

LIU Yong-feng,LI Yu-guo,WANG Yu-ping

School of Physics and Electronics, Shandong Normal University, Jinan 250014, China

Received:2014-06-24 Online:2014-12-20 Published:2014-12-20

摘要/Abstract

摘要： 在1 200 ℃对Ga2O3粉末和Au覆盖的Si(111)基片加热不同时间, 利用热蒸发法制备Ga2O3纳米线。实验中我们发现了一个新的成核过程, 用扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X射线衍射(XRD)技术对样品进行了结构、形貌的表征。SEM显示,在整个样品表面形成大量直径约200 ~ 300 nm的蒲公英状纳米线。能量色散谱(EDS)显示，样品为纯净的Ga2O3。由分析可知,生长时间对样品的形态和微观结构有一定的影响。最后,简要讨论了这种奇特结构的生长机制。

关键词: 生长机制, 新的成核过程, 蒲公英状纳米线, 表征

Abstract: We prepared Ga2O3 nanowires by heating Ga2O3 powder and Aucoated Si(111) substrates at 1 200℃ with different time. We discovered a new nucleation process in this experiment. We further characterized the structure and appearance of the nanowires by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and XRay Diffraction (XRD). Large number of dandelionlike Ga2O3 nanowires with diameters of about 200 ~ 330 nm formed on entire surface of those substrates which was observed by SEM. Energydispersive spectrometry (EDS) based observation shows that the products are pure Ga2O3. Experimental results reveal that growth time impacts their morphology and microstructure. We eventually address their growth mechanism.

Key words: growth mechanism, dandelionlike nanowire, characterization, a new process of nucleation

中图分类号:

O484.5

刘永峰，李玉国，王玉萍. 蒲公英状氧化镓纳米线的制备与表征[J]. 山东科学, 2014, 27(6): 108-112.

LIU Yong-feng,LI Yu-guo,WANG Yu-ping. Preparation and characterization of dandelionlike Ga2O3 nanowires[J]. SHANDONG SCIENCE, 2014, 27(6): 108-112.

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蒲公英状氧化镓纳米线的制备与表征

Preparation and characterization of dandelionlike Ga2O3 nanowires

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