A simple route to synthesize scales of aligned single-crystalline SiC nanowires arrays with very small diameter and optical properties.
Scales of aligned single-crystalline SiC nanowires (SiCNWs) arrays with very small diameter were synthesized by a simple thermal evaporation of ZnS and carbon on silicon wafer. The as-received SiCNWs possess a uniform size distribution centered at approximately 8.0 nm, even with a minimum of approximately 3.0 nm. The highly oriented SiCNWs usually grew along [111] direction with a clean surface, very thin oxide shell, and small quantity of stacking faults. A crystalline tube-like SiC nanostructure is also obtained. The optical properties, including photoluminescence and Raman scattering spectra of the SiCNWs, were investigated, respectively. In the end, a growth model on basis of the experimental data is suggested.
Niu
Jun Jie
JJ
School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai, 200030, People's Republic of China. jjniu@sjtu.edu.cn
Wang
Jian Nong
JN