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Nano structured carbon nitrides prepared by chemical vapour deposition

Karuppannan, Ramesh and Prashantha, M (2010) Nano structured carbon nitrides prepared by chemical vapour deposition. In: Conference On Carbon Nanotubes, Graphene, and Associated Devices III, AUG 01-04, 2010, San Diego, CA, .

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Abstract

Nanostructured carbon nitride films were prepared by pyrolysis assisted chemical vapour deposition(CVD). A two zone furnace with a temperature profile having a uniform temperature over a length of 20 cm length has been designed and developed. The precursor Azabenzimidazole was taken in a quartz tube and evaporated at 400 degrees C. The dense vapours enter the pyrolysis zone kept at a desired temperature and deposit on the quartz substrates. The FTIR spectrum of the prepared samples shows peaks at 1272 cm(-1) (C-N stretching) and 1600 cm(-1) (C=N) confirms the bonding of nitrogen with carbon. Raman D and G peaks, are observed at 1360 cm(-1) and 1576 cm(-1) respectively. XPS core level spectra of C 1s and N 1s show the formation of pi bonding between carbon and nitrogen atoms. The size of the nano crystals estimated from the SEM images and XRD is similar to 100 nm. In some regions of the sample a maximum of 57 atom % of nitrogen has been observed.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to The International Society for Optical Engineering.
Keywords: Carbon nitride; chemical vapor deposition; pyrolysis; nano tube; nano particle; XRD
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 07 Mar 2011 09:52
Last Modified: 07 Mar 2011 09:52
URI: http://eprints.iisc.ernet.in/id/eprint/35917

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