Genesis of diamond nanotubes from carbon nanotubes

被引：5
|
作者：
Varshney, D. [1 ,2 ]
Makarov, V. I. [1 ,3 ]
Saxena, P. [1 ]
Scott, J. F. [4 ]
Weiner, B. R. [1 ,3 ]
Morell, G. [1 ,2 ]
机构：
[1] Univ Puerto Rico, Inst Funct Nanomat, San Juan, PR 00931 USA
[2] Univ Puerto Rico, Dept Phys, San Juan, PR 00931 USA
[3] Univ Puerto Rico, Dept Chem, San Juan, PR 00931 USA
[4] Univ Cambridge, Dept Earth Sci, Cambridge CB2 1PZ, England
来源：
EPL | 2011年 / 95卷 / 02期
关键词：
FIELD-EMISSION PROPERTIES; ULTRANANOCRYSTALLINE DIAMOND; RAMAN-SPECTRUM; HYBRID; GROWTH; SP(2); DNA;
D O I：
10.1209/0295-5075/95/28002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We synthesized sp(3)-rich crystalline tubular structures, referred to as diamond nanotubes (DNTs), by hot-filament chemical vapor deposition and characterized them using SEM, TEM, EELS, and Raman spectroscopy. The images and spectra indicate the formation of DNTs with internal diameter of about 7-10 nm and external diameter of about 20-30 nm. During the fabrication process, CNTs form first and give way to the synthesis of DNTs. The DNTs show good field emission properties and enhanced temporal stability as compared to CNTs. Copyright (C) EPLA, 2011
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页数：5
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