標題: | Growth of diamond nanoplatelets on nanocrystalline diamond substrates |
作者: | Chen, Hou-Guang Chang, Li 材料科學與工程學系 Department of Materials Science and Engineering |
關鍵字: | Nano-diamond;MPCVD;TEM;Field emission |
公開日期: | 1-二月-2009 |
摘要: | We report the growth of single crystalline diamond nanoplatelets (DNPs) on different types of nanocrystalline diamond substrates by high temperature microwave-plasma chemical vapor deposition. The influence of methane concentration on DNP morphologies has been studied. According to high-resolution transmission electron microscopy observation, DNPs are typical tabular twined crystallites which consist of several twin lamellae parallel to platelet surfaces and the side-face structure of DNPs is the ridge-and-trough structure consisting of {100} and {111} faces. The field emission properties of DNPs with various morphologies and nano-crystalline diamond substrates were characterized. The turn-on electrical field of DNPs with well-faceted side edges was lower in comparison with the DNPs with irregular shapes and nanocrystalline-diamond substrate. (C) 2008 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.diamond.2008.11.010 http://hdl.handle.net/11536/12778 |
ISSN: | 0925-9635 |
DOI: | 10.1016/j.diamond.2008.11.010 |
期刊: | DIAMOND AND RELATED MATERIALS |
Volume: | 18 |
Issue: | 2-3 |
起始頁: | 141 |
結束頁: | 145 |
顯示於類別: | 會議論文 |