Fabrication and Photoluminescence of Hierarchical SiC Nanowires

Title:Fabrication and Photoluminescence of Hierarchical SiC Nanowires

Volume: 8 Issue: 2

Author(s): Jianjun Chen, Qiang Shi, Lipeng Xin, Yang Liu and Weihua Tang

Affiliation:

Keywords: Silicon carbide nanowires, photoluminescence, microstructure, electron microscopy

Abstract: Hierarchical single-crystalline β-SiC nanowires were synthesized by simply heating carbonaceous silica xerogel. A fairly high density of stacking faults was observed perpendicular to [111] growth direction of the hierarchical nanowires. A possible vapor-solid growth mechanism for the hierarchical nanowires was discussed. The photoluminescence spectrum of hierarchical SiC nanowires at room temperature shows two emission peaks at 406 nm and 432 nm. The blue emission at 432 nm may be related to 3C-SiC, while the emission peak at 406 nm may be attributed to 6H-SiC segments formed by stacking faults in 3C-SiC nanowire matrix.

Cite this article as:

Chen Jianjun, Shi Qiang, Xin Lipeng, Liu Yang and Tang Weihua, Fabrication and Photoluminescence of Hierarchical SiC Nanowires, Current Nanoscience 2012; 8 (2) . https://dx.doi.org/10.2174/157341312800167560