Abstract
Nanowires growth via vapor-liquid-solid mechanism leads to high-quality SiC nanowires. C content is key issue affecting the morphology and composition of SiC nanowires. Here, we report the synthesis and growth mechanism of 3C-SiC nanowires containing reduced amount of C, which are grown on single-crystal Si via pyrolysis of polycarbosilane (PCS) by adjusting pyrolysis temperature and precursor. SiC nanowires have a diameter of 50 nm, while their thickness is 43.75 µm. High-temperature stability of precursors with multiple side-chain groups has an impact on the reaction rate, in result the solid precursor state and pyrolysis temperature at 1350 °C are beneficial to the formation of pure carbon-poor SiC nanowires.
Original language | English |
---|---|
Pages (from-to) | 6440-6446 |
Number of pages | 7 |
Journal | Ceramics International |
Volume | 45 |
Issue number | 5 |
DOIs | |
State | Published - 1 Apr 2019 |
Keywords
- Precursor state
- Pyrolysis temperature
- SiC nanowires
- Vapor-liquid-solid growth mechanism