Single-crystalline alpha silicon–nitride nanowires: Large-scale synthesis, characterization, and optic properties

Guifu Zou; Biao Hu; Kan Xiong; Hui Li; Chao Dong; Jiangbo Liang; Yitai Qian
May 2005
Applied Physics Letters;5/2/2005, Vol. 86 Issue 18, p181901
Academic Journal
Single-crystalline alpha silicon–nitride nanowires have been achieved with large scale by the reaction of Mg3N2 and SiCl4 at 600 °C. Electron microscopy analyses have revealed that the nanowires have only ∼35 nm in diameter, up to 5 μm in length, and a preferred [001] growth direction. The nanowires exhibit the quantum size effect in optical properties, showing the redshift of an infrared band and the blueshift of the photoluminescence band. The growth mechanism of the nanowires have been properly discussed.


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