Fullerenes as the parent molecule for the deposition of tetrahedral carbon

Busmann, H.‐G.; Brauneck, Ulf; David, Haldane

doi:10.1016/s0008-6223(98)00049-9

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Xps Investigations1

Gas-phase Composition1

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2014

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Cited by 6 publications

(2 citation statements)

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“…oxygen. The different shift values indicate different functional carbon-oxygen groups [21]. In several XP-C 1s spectra a further signal was detected at 281 eV besides this one at 285.5 eV.…”

Section: Xps Investigationsmentioning

confidence: 91%

Novel carbon materials obtained by reactions of C60 fullerene with phosphorus at high temperature

Feldtner¹,

Brockner²,

Scharff³

et al. 2004

Journal of Non-Crystalline Solids

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Section: Xps Investigationsmentioning

confidence: 91%

Novel carbon materials obtained by reactions of C60 fullerene with phosphorus at high temperature

Feldtner¹,

Brockner²,

Scharff³

et al. 2004

Journal of Non-Crystalline Solids

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“…46 Experiments were carried out in an Ar atmosphere with varying hydrogen additions (10 À2 Torr C 60 , 90-99% Ar, 1-10% H 2 ). 47,48 As, under such deposition conditions, the H/C atomic ratio is low, the pure crystalline diamond growth is strongly disabled and nanocrystalline diamond with amorphous grain boundaries is deposited. This effect is not specific for C 60 as a carbon source because, with CH 4 /H 2 /Ar mixtures, similar results were observed.…”

Section: Gas-phase Compositionmentioning

confidence: 99%

The Microstructures of Polycrystalline Diamond, Ballas and Nanocrystalline Diamond

Haubner

2014

Nanodiamond

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Diamond has unique properties due to its covalent sp3 bonding structure and crystal lattice. With decreasing crystal size, mechanical and physical properties become different from coarse grained types. In the case of CVD diamond there are various types of nanocrystalline materials that have been described, e.g., ballas diamond, NCD (nanocrystalline diamond) and UNCD (ultra-nanocrystalline diamond). From the present point of view the nanocrystalline materials can be described by various microstructures and surface morphologies. Ballas is a polycrystalline, spherically grown diamond having a radial structure containing twin grain boundaries and a non-faceted surface. Several morphological ballas structures have been observed by varying the diamond deposition conditions, i.e., ballas mixed with faceted areas, flat ballas, ballas with graphitic inclusions etc. The NCD and UNCD coatings are grown by decreasing the atomic-hydrogen-to-carbon ratio and, therefore, increasing the amorphous carbon content in the grain boundaries. Finally, there is a continuous changeover between the different deposition types and, because of some freedom in the interpretation of the results of various analytical characterisation methods, it is problematic to distinguish between different diamond types.

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Deposition of ballas diamond and nano-crystalline diamond

Haubner

Lux

2002

International Journal of Refractory Metals and Hard Materials

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Fullerenes as the parent molecule for the deposition of tetrahedral carbon

Cited by 6 publications

References 13 publications

Novel carbon materials obtained by reactions of C60 fullerene with phosphorus at high temperature

Novel carbon materials obtained by reactions of C60 fullerene with phosphorus at high temperature

The Microstructures of Polycrystalline Diamond, Ballas and Nanocrystalline Diamond

Deposition of ballas diamond and nano-crystalline diamond

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