Adjusting the morphology and properties of sic nanowires by catalyst control

Chuchu Guo, Laifei Cheng, Fang Ye, Qing Zhang

科研成果: 期刊稿件文章同行评审

16 引用 (Scopus)

摘要

We report on the growth of SiC nanowires on a single crystal Si substrate by pyrolysis of polycarbosilane and using two catalyst (Al2O3 and Ni) films with different thickness (2, 4, and 6 nm). The catalyst films were deposited on the Si substrate, and the SiC nanowires were grown according to two mechanisms, i.e., the oxide-assisted growth mechanism and vapor-liquid-solid mechanism. As a result, pearl-chain-like SiC nanowires and straight SiC nanowires were obtained. The prepared nanowires exhibited excellent photoluminescence properties, emission spectra displaying two emission peaks at 395 and 465 nm, and have good thermal stability below 1000C. The experimental results revealed the importance of the catalyst in controlling the morphology and properties of SiC nanowires.

源语言英语
文章编号5179
期刊Materials
13
22
DOI
出版状态已出版 - 2 11月 2020

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