Synthesis of flower-like silica microstructures by a simple thermal evaporation method

被引：0

作者：

Zhu, Guang ^{[1
]}

Zou, Xiaoping ^{[1
]}

Cheng, Jin ^{[1
]}

Wang, Maofa ^{[1
]}

Su, Yi ^{[1
]}

机构：

[1] Beijing Informat Sci & Technol Univ, Beijing Key Lab Sensor, Beijing 100101, Peoples R China

来源：

2008 INTERNATIONAL CONFERENCE ON OPTICAL INSTRUMENTS AND TECHNOLOGY: MEMS/NEMS TECHNOLOGY AND APPLICATIONS | 2009年 / 7159卷

关键词：

flower-like; silica microstructures; thermal evaporation; INDIVIDUAL CARBON NANOTUBES; NANOSTRUCTURES; NANOWIRES; GROWTH; CONDUCTIVITY; OXIDE;

D O I：

10.1117/12.811884

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Novel flower-like silica microstructures have been synthesized through heating silicon, silicon monoxide and active carbon mixed powders under an H-2/Ar (3%) atmosphere at 1050 degrees C without assistance of any metal catalyst. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) and energy dispersive x-ray spectrometer (EDS) analyses reveal that the wires are amorphous and consist only of silicon oxide, generated from the reaction of CO with SiC. A possible growth model based on both of vapor-solid (VS) and the Oxide-assisted growth (OAG) mechanism has been supposed here to explain this phenomenon.

引用

页数：7

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