Abstract
Plasma enhanced chemical vapour deposition (PECVD) has been employed in order to synthesis different one, two and mixed dimensional carbon nanostructures on catalyst modified silicon substrate. The microstructures of all the as prepared samples were characterized by field emission scanning electron microscopes. The bonding and hybridization states of all the samples were analysed with the help of Fourier transformed infrared spectroscopy and Raman spectroscopy in depth. It has been shown that the roughness of the silicon substrates as well as the thickness of the catalyst layer casts a marked effect on the sample morphology of the as synthesized samples.The response of all the samples towards water droplets has been studied in detail and it has been shown that it is possible to achieve nearly super hydrophobicity in the samples simply by varying the deposition condition, surface roughness as well as catalyst layer.The surface energies of all the samples were calculated following modified Young's equation by measuring the contact angles of two different liquids. Also efforts has been given in order to relate the hydrophobic response of the samples with the constituent components of the surface energy.This systematic effort can play an important role in determining the structure energy relationship in PECVD synthesized carbon nanomaterials.
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More From: Physica E: Low-dimensional Systems and Nanostructures
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