Controllable synthesis of AlN nanostructures and their photoluminescence

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	Controllable synthesis of AlN nanostructures and their photoluminescence
	Shen, Longhai; Lv, Wei; Wang, Nan; Wu, Lijun; Qi, Dongli; Ma, Yuantai; Lei, Weiwei; Shen, LH (reprint author), Shenyang Ligong Univ, Sch Sci, Shenyang 110159, Liaoning, Peoples R China.; Lei, WW (reprint author), Deakin Univ, Inst Frontier Mat, Locked Bag 2000, Geelong, Vic 3220, Australia.
刊名	ROYAL SOC CHEMISTRY
	2017-10-21
卷号	19 期号:39 页码:5940-5945
ISSN号	1466-8033
英文摘要	AlN nanostructures with controllable morphologies are synthesized on a Si substrate with an Al particle layer as a self-catalyst via a chemical vapor deposition (CVD) technique under atmospheric pressure. The effects of temperature, NH3 flow and the gas entrance procedure on the morphologies are investigated. Especially, among these nanostructures, the AlN nanowhiskers exhibit a high aspect ratio, which is about one order of magnitude larger than that of other AlN nanostructures. A mechanism for controlled morphology is proposed based on the self-catalyzed nucleation and the diffusion process of Al adatoms on the surface under different reaction conditions (either Al-rich or N-rich). Moreover, the AlN nanostructures exhibit intense photoluminescence and this can be tuned through the size and morphology of the nanostructures.; AlN nanostructures with controllable morphologies are synthesized on a Si substrate with an Al particle layer as a self-catalyst via a chemical vapor deposition (CVD) technique under atmospheric pressure. The effects of temperature, NH3 flow and the gas entrance procedure on the morphologies are investigated. Especially, among these nanostructures, the AlN nanowhiskers exhibit a high aspect ratio, which is about one order of magnitude larger than that of other AlN nanostructures. A mechanism for controlled morphology is proposed based on the self-catalyzed nucleation and the diffusion process of Al adatoms on the surface under different reaction conditions (either Al-rich or N-rich). Moreover, the AlN nanostructures exhibit intense photoluminescence and this can be tuned through the size and morphology of the nanostructures.
学科主题	Chemistry, Multidisciplinary ; Crystallography
语种	英语
资助机构	Scientific Research Foundation of the Technological Bureau of Shenyan and Liaoning [F16-205-1-16, 201602647]; Opening Foundation Key Laboratory of Laser and Optical Technology of Liaoning Province [5H1004]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79037]
专题	金属研究所_中国科学院金属研究所
通讯作者	Shen, LH (reprint author), Shenyang Ligong Univ, Sch Sci, Shenyang 110159, Liaoning, Peoples R China.; Lei, WW (reprint author), Deakin Univ, Inst Frontier Mat, Locked Bag 2000, Geelong, Vic 3220, Australia.
推荐引用方式 GB/T 7714	Shen, Longhai,Lv, Wei,Wang, Nan,et al. Controllable synthesis of AlN nanostructures and their photoluminescence[J]. ROYAL SOC CHEMISTRY,2017,19(39):5940-5945.
APA	Shen, Longhai.,Lv, Wei.,Wang, Nan.,Wu, Lijun.,Qi, Dongli.,...&Lei, WW .(2017).Controllable synthesis of AlN nanostructures and their photoluminescence.ROYAL SOC CHEMISTRY,19(39),5940-5945.
MLA	Shen, Longhai,et al."Controllable synthesis of AlN nanostructures and their photoluminescence".ROYAL SOC CHEMISTRY 19.39(2017):5940-5945.