標題: One-step growth process of carbon nanofiber bundle-ended nanocone structure by microwave plasma chemical vapor deposition
作者: Teng, I. J.
Chuang, P. K.
Kuo, C. T.
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: carbon nanofibers (CNFs);carbon nanocones (CNCs);microwave plasma chemical vapor deposition (MPCVD);field emission;growth mechanism
公開日期: 1-Nov-2006
摘要: In this work, we report a simple one-step growth process to synthesize a novel and distinct carbon nanostructure, called a carbon nanofiber bundle-ended nanocone (CNFNC) structure, by using microwave plasma chemical vapor deposition (MPCVD) method with CH4 and H, as source gases and Fe catalyst. The nanostructures and their properties after each processing step were characterized by FESEM, HRTEM, ED, AES, and Raman spectroscopy. The preliminary results have demonstrated that the CNFNC structures exhibit excellent field emission properties. The results also show that the favored conditions to form the CNFNC structures include a combination of lower CH4/H-2 flow ratio, higher substrate negative bias, and proper working pressure and deposition time. The possible growth mechanism of the CNFNC structures is proposed. (c) 2006 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.diamond.2006.07.011
http://hdl.handle.net/11536/11646
ISSN: 0925-9635
DOI: 10.1016/j.diamond.2006.07.011
期刊: DIAMOND AND RELATED MATERIALS
Volume: 15
Issue: 11-12
起始頁: 1849
結束頁: 1854
Appears in Collections:Conferences Paper


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