Abstract Amorphous silicon (a-Si) nanowires have been prepared on SiO2/Si substrates by AuPd nanoparticles / silane reaction method. Field-emission scanning electron microscopy and transmission electron microscopy were used to characterize the samples. The typical a-Si nanowires we obtained are of a uniform diameter about 20 nm and length up to several micrometers. The growth mechanism of the nanowires seems to be the vapor-liquid-solid mechanism. The catalytic particle size effect on the formation of the nanowires and the cause of forming amorphous state Si nanowires are discussed.
Received: 23 May 2000
Accepted manuscript online:
PACS:
68.37.Hk
(Scanning electron microscopy (SEM) (including EBIC))
(Molecular, atomic, ion, and chemical beam epitaxy)
Fund: Project supported in part by the National Natural Science Foundation of China (Grant No. 19834080) and by the Laboratory of Advanced Materials, Tsinghua University, Beijing, China.
Cite this article:
Liu Zu-qin (刘祖琴), Sun Lian-feng (孙连峰), Tang Dong-sheng (唐东升), Zhou Wei-ya (周维亚), Li Yu-bao (李玉宝), Zou Xiao-ping (邹小平), Wang Gang (王刚) AuPd CATALYTIC NANOPARTICLE SIZE EFFECT ON THE FORMATION OF AMORPHOUS SILICON NANOWIRES 2000 Chinese Physics 9 774
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