期刊
SURFACE AND INTERFACE ANALYSIS
卷 44, 期 6, 页码 780-783出版社
WILEY
DOI: 10.1002/sia.3868
关键词
fullerene nanowhiskers; field electron emission; electron microscopy; Raman spectroscopy
资金
- Canon Foundation
- Nippon Sheet Glass Foundation for Materials Science and Engineering
- Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT)
- Grants-in-Aid for Scientific Research [19054007] Funding Source: KAKEN
Single-crystalline fullerene nanowhiskers heated in a high vacuum at 2373K were characterized by scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The field electron emission from the heat-treated nanowhiskers was studied by field emission microscopy. The outer shape of the heat-treated nanowhiskers maintained its original morphology before heat treatment, that is, a straight shape with a uniform diameter along the long axis and a hexagonal cross section, whereas the inner structure was transformed from a single crystal of C60 to glassy carbon composed of crumpled graphitic layers. The field emission microscopy images of the heat-treated nanowhiskers, reflecting the atomic structures of the crumpled graphitic layers in the emitting region, exhibited striped patterns that are characteristic of graphite emitters. Copyright (c) 2011 John Wiley & Sons, Ltd.
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