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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1551

Title: Diamond nucleation and growth on zeolites
Authors: TITUS, E
SINGH, MK
UNNI, KNN
TYAGI, PK
DUA, AK
ROY, M
MISRA, DS
Keywords: field-emission devices
polycrystalline diamond
infrared-analysis
films
carbon
deposition
membranes
hydrogen
Issue Date: 2003
Publisher: ELSEVIER SCIENCE SA
Citation: DIAMOND AND RELATED MATERIALS,12,1647-1652
Abstract: In this work, we report the use of zeolites as substrates for the deposition of porous diamond films. Films were deposited in a hot-filament chemical vapor deposition (HFCVD) apparatus. The HFCVD system was fed with a mixture of methane (0.8%) with the balance being hydrogen. A series of depositions were done in the pressure range 20-120 Torr and at substrate temperature 880 degreesC. The morphologies of the as-deposited films were analyzed by scanning electron microscopy and show isolated diamond grains in the initial nucleation stages, which develop into a microporous film in the next stage and form a continuous film after long time deposition. Raman spectroscopy was used to investigate the crystal morphology, structure and non-diamond impurities in the films deposited at various growth conditions. The nature of the hydrogen bonding with sp(3) and sp(2) network and the quantitative analysis were done by Fourier transform infrared spectroscopy. (C) 2003 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/S0925-9635(03)00307-8
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14764
http://hdl.handle.net/100/1551
ISSN: 0925-9635
Appears in Collections:Proceedings papers

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