標題: Direct Synthesis of Vertically Interconnected 3-D Graphitic Nanosheets on Hemispherical Carbon Particles by Microwave Plasma CVD
作者: Tiwari, Jitendra N.
Tiwari, Rajanish N.
Singh, Gyan
Lin, Kun-Lin
材料科學與工程學系
生物科技學系
Department of Materials Science and Engineering
Department of Biological Science and Technology
關鍵字: Microwave plasma CVD;Graphitic nanosheets;Electron microscopy;Surface properties
公開日期: 1-Mar-2011
摘要: High-quality, free-standing, and vertically interconnected three-dimensional (3-D) graphitic nanosheets (GNSs) were synthesized over the surface of hemispherical carbon particles/GaN at 700 A degrees C by microwave plasma chemical vapor deposition (CVD) in presence of methane gas, whereas the hemispherical carbon particles have been directly deposited on GaN/sapphire template. The GNSs are similar to 1-5 nm in thickness and have a graphitic flake structure on hemispherical carbon particles. The vertically interconnected 3-D GNSs on hemispherical carbon particles have been characterized by scanning electron microscopy, transmission electron microscopy, selective area electron diffraction pattern, X-ray diffraction, atomic force microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and nitrogen gas adsorption-Brunauer-Emmet-Teller. The present CVD approach is capable of producing large quantities of GNSs with high purity. Moreover, a high-purity free-standing and vertically interconnected 3-D GNSs on hemispherical carbon particles have an enormous potential for applications in electronic devices, biological sensors, gas uptake and storage, fuel cells, lithium ion batteries, and more.
URI: http://dx.doi.org/10.1007/s11468-010-9170-7
http://hdl.handle.net/11536/9205
ISSN: 1557-1955
DOI: 10.1007/s11468-010-9170-7
期刊: PLASMONICS
Volume: 6
Issue: 1
起始頁: 67
結束頁: 73
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