標題: Characterization of diamond nanoplatelets
作者: Chen, HG
Chang, L
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: nanodiamond;transmission electron microscopy (TEM);microstructure;electron energy loss spectroscopy
公開日期: 1-Apr-2004
摘要: Diamond deposition at a temperature above 1000 degreesC was carried out in a microwave plasma chemical vapor deposition reactor using a 3% CH4/H-2 gas mixture. A polycrystalline diamond substrate was coated with a thin film of nickel in 100-nm thickness before deposition. Electron microscopy characterization of electron diffraction, high-resolution imaging, and electron energy loss spectroscopy shows that the diamonds deposited exhibit regular shapes in triangles and parallelogram with well-faceted surfaces. These diamond platelets are single crystallites with a uniform thickness of approximately 30-70 nm and length of several hundred nanometers to a few micrometers. The platelet morphology suggests that it is formed by lateral growth. Also, it was found that the diamonds are covered with a 1 to 2-nm thick graphite films in epitaxy. (C) 2003 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.diamond.2003.11.013
http://hdl.handle.net/11536/26914
ISSN: 0925-9635
DOI: 10.1016/j.diamond.2003.11.013
期刊: DIAMOND AND RELATED MATERIALS
Volume: 13
Issue: 4-8
起始頁: 590
結束頁: 594
Appears in Collections:Conferences Paper


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