The Synthesis of beta-SiC Nanoparticles by High-Energy Mechanical Ball Milling and Their Photoluminescence Properties
文献类型:期刊论文
作者 | G. Q. Zhang ; G. D. Wei ; K. Z. Zheng ; L. Li ; D. P. Xu ; D. Y. Wang ; Y. F. Xue ; W. H. Su |
刊名 | Journal of Nanoscience and Nanotechnology
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出版日期 | 2010 |
卷号 | 10期号:3页码:1951-1955 |
关键词 | SiC Ball Milling Synthesis Photoluminescence Nanoparticle Grain Size area silicon-carbide fabrication temperature nanoribbons nanowires nanotubes nanobelts route |
ISSN号 | 1533-4880 |
中文摘要 | We succeeded in the synthesis of single-phase beta-SiC nanoparticles via simple and low-cost high-energy mechanical ball milling of a silicon and graphite mixture at ambient temperature. The synthesis products were characterized by X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The results show that starting graphite and silicon mixture reacted completely into beta-SiC nanoparticles with an average grain size of similar to 8 nm after being milled for 20 h, and the grain size gradually decreased as milling time increased from 20 to 60 h but remained basically unchanged above 60 h. The agglomeration problem of the beta-SiC nanoparticles synthesized by ball milling was resolved to a great extent by the introduction of 2 wt% NH(4)Cl to the initial Si-C mixture. Under 325 nm excitation, a stable and intensive broad emission peak at 387 nm was observed in the photoluminescence (PL) spectrum of the synthetic nanoparticles, and this emission shows an obvious blueshift of bandgap. |
原文出处 | |
公开日期 | 2012-04-13 |
源URL | [http://ir.imr.ac.cn/handle/321006/31686] ![]() |
专题 | 金属研究所_中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | G. Q. Zhang,G. D. Wei,K. Z. Zheng,et al. The Synthesis of beta-SiC Nanoparticles by High-Energy Mechanical Ball Milling and Their Photoluminescence Properties[J]. Journal of Nanoscience and Nanotechnology,2010,10(3):1951-1955. |
APA | G. Q. Zhang.,G. D. Wei.,K. Z. Zheng.,L. Li.,D. P. Xu.,...&W. H. Su.(2010).The Synthesis of beta-SiC Nanoparticles by High-Energy Mechanical Ball Milling and Their Photoluminescence Properties.Journal of Nanoscience and Nanotechnology,10(3),1951-1955. |
MLA | G. Q. Zhang,et al."The Synthesis of beta-SiC Nanoparticles by High-Energy Mechanical Ball Milling and Their Photoluminescence Properties".Journal of Nanoscience and Nanotechnology 10.3(2010):1951-1955. |
入库方式: OAI收割
来源:金属研究所
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