One-Step Synthesis of the Pine-Shaped Nanostructure of Aluminum Nitride and Its Photoluminescence Properties

详细信息    查看全文

• 作者：Weiwei Lei ; Dan Liu ; Pinwen Zhu ; Qiushi Wang ; Gang Liang ; Jian Hao ; Xiaohui Chen ; Qiliang Cui ; Guangtian Zou
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：September 4, 2008
• 年：2008
• 卷：112
• 期：35
• 页码：13353-13358
• 全文大小：307K
• 年卷期：v.112,no.35(September 4, 2008)
• ISSN：1932-7455

文摘

An array of pine-shaped nanostructures of aluminum nitride (AlN) was synthesized through direct reaction between Al vapor and nitrogen gas in direct current (DC) arc discharge plasma without any catalyst or template. The as-prepared nanostructure consists of many pine-needle-shaped leaves with conical shape tips. The structure, morphology, and optical property of the nanostructure have been characterized by X-ray powder diffraction, energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, Raman spectroscopy, and photoluminescence. A possible growth mechanism of the pine-shaped nanostructure was discussed. Two factors were found to be essential for branched nanostructure growth, i.e., the reaction time and N₂ pressure. The photoluminescence spectrum of the nanostructure of AlN revealed an intense emission band, suggesting that there may be potential applications in electronic and optoelectronic nanodevices.