کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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703455 | 1460817 | 2008 | 4 صفحه PDF | دانلود رایگان |

We report a template technique for the fabrication of high density nanocrystalline diamond (NCD)-coated silica (a-SiO2) nanofibers with diameters of 1–5 μm. This method includes the synthesis of templates (a-SiO2 nanofibers) by conventional Vapor–Liquid–Solid method and the conformal coating of the nanofibers with nanodiamond by Microwave Plasma Chemical Vapor Deposition technique in hydrogen-deficient conditions. A detailed micro-structural analysis was performed to probe the interaction of the NCD grains with a-SiO2 nanofibers. The specimen for Transmission Electron Microscopy was prepared using Focused Ion Beam lift-out method. Room temperature micro-Raman was performed to study the crystalline quality of the NCD-coated silica nanofibers. Field electron emission of as-synthesized NCD-coated silica nanofibers was observed with a threshold field of ~ 3 V/µm.
Journal: Diamond and Related Materials - Volume 17, Issues 7–10, July–October 2008, Pages 1106–1109