Evolution kinetics of sp2 ordering in tetrahedral amorphous carbon films induced by electron irradiation

Liang, Shanshan; Yajima, Akio; Abe, Shuji; Mera, Yutaka; Maeda, Koji

doi:10.1016/j.susc.2005.06.088

Cited by 18 publications

(12 citation statements)

References 27 publications

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“…Accordingly, the number of sp2 carbon bonds increases at the expense of sp3 bonds [24]. A similar increase is reported also for ta-C carbon films by irradiation of 200 keV electron beam [34]. In general, the conductivity of samples with dominant sp2 bonds (graphite) is higher than samples with dominant sp3 bonds (diamond, ta-C carbon).…”

Section: Discussionsupporting

confidence: 79%

Tuning the electrical conductivity of Pt-containing granular metals by postgrowth electron irradiation

Porrati

Sachser

Schwalb

et al. 2011

Journal of Applied Physics

102

171

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We have fabricated Pt-containing granular metals by focused electron beam induced deposition from the (CH3)3CH3C5H4Pt precursor gas. The granular metals are made of platinum nanocrystallites embedded in a carbonaceous matrix. We have exposed the asgrown nanocomposites to low energy electron beam irradiation and we have measured the Finally, by means of AFM measurements we observe a reduction of the volume of the samples with increasing irradiation time which we attribute to the removal of carbon molecules.

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Section: Discussionsupporting

confidence: 79%

Tuning the electrical conductivity of Pt-containing granular metals by postgrowth electron irradiation

Porrati

Sachser

Schwalb

et al. 2011

Journal of Applied Physics

102

171

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show abstract

“…2 and 3 with reference spectra related to graphite ͑100% sp 2 C͒ and a-C ͑predominantly sp 2 C͒ deduced from, 28 ta-C ͑predominantly sp 3 C but disor-dered͒ deduced from, 29,30 and diamond ͑100% sp 3 C͒ de- duced from. 2 and 3 with reference spectra related to graphite ͑100% sp 2 C͒ and a-C ͑predominantly sp 2 C͒ deduced from, 28 ta-C ͑predominantly sp 3 C but disor-dered͒ deduced from, 29,30 and diamond ͑100% sp 3 C͒ de- duced from.…”

Section: Resultsmentioning

confidence: 99%

Structure of diamondlike carbon films deposited by femtosecond and nanosecond pulsed laser ablation

Sikora¹,

Garrelie²,

Donnet³

et al. 2010

Journal of Applied Physics

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“…After the oriented nuclei are formed, a low thermal energy will then facilitate the aligned growth of the graphite phase 54 from the nuclei into continuous textured graphite. For elastically anisotropic materials, which include graphite and other hexagonal materials, energy minimization is likely to cause the slidable in-plane graphite layers (in the [100]/[110] directions) to lie parallel to the stresses, whereas the compressible out-of-plane c axis (in the [002] direction) lies normal to the stresses 19 , 55 , 56 .…”

Section: Resultsmentioning

confidence: 99%

Stress Writing Textured Graphite Conducting Wires/Patterns in Insulating Amorphous Carbon Matrix as Interconnects

Wang

Chang

Chen

et al. 2017

Sci Rep

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This study reports a mechanical stress-based technique that involves scratching or imprinting to write textured graphite conducting wires/patterns in an insulating amorphous carbon matrix for potential use as interconnects in future carbonaceous circuits. With low-energy post-annealing below the temperature that is required for the thermal graphitization of amorphous carbon, the amorphous carbon phase only in the mechanically stressed regions transforms into a well aligned crystalline graphite structure with a low electrical resistivity of 420 μΩ-cm, while the surrounding amorphous carbon matrix remains insulating. Micro-Raman spectra with obvious graphitic peaks and high-resolution transmission electron microscopic observations of clear graphitic lattice verified the localized phase transformation of amorphous carbon into textured graphite exactly in the stressed regions. The stress-induced reconstruction of carbon bonds to generate oriented graphitic nuclei is believed to assist in the pseudo-self-formation of textured graphite during low-temperature post annealing.

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Evolution kinetics of sp2 ordering in tetrahedral amorphous carbon films induced by electron irradiation

Cited by 18 publications

References 27 publications

Tuning the electrical conductivity of Pt-containing granular metals by postgrowth electron irradiation

Tuning the electrical conductivity of Pt-containing granular metals by postgrowth electron irradiation

Structure of diamondlike carbon films deposited by femtosecond and nanosecond pulsed laser ablation

Stress Writing Textured Graphite Conducting Wires/Patterns in Insulating Amorphous Carbon Matrix as Interconnects

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