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High-field transport in amorphous carbon and carbon nitride films

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High-field transport in amorphous carbon and carbon nitride films. / Kumar, Sushil ; Godet, C. ; Goudovskikh, A. et al.
In: Journal of Non-Crystalline Solids, Vol. 338, 2004, p. 349-352.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Kumar, S, Godet, C, Goudovskikh, A, Kleider, JP, Adamopoulos, G & Chu, V 2004, 'High-field transport in amorphous carbon and carbon nitride films', Journal of Non-Crystalline Solids, vol. 338, pp. 349-352. https://doi.org/10.1016/j.jnoncrysol.2004.02.071

APA

Kumar, S., Godet, C., Goudovskikh, A., Kleider, J. P., Adamopoulos, G., & Chu, V. (2004). High-field transport in amorphous carbon and carbon nitride films. Journal of Non-Crystalline Solids, 338, 349-352. https://doi.org/10.1016/j.jnoncrysol.2004.02.071

Vancouver

Kumar S, Godet C, Goudovskikh A, Kleider JP, Adamopoulos G, Chu V. High-field transport in amorphous carbon and carbon nitride films. Journal of Non-Crystalline Solids. 2004;338:349-352. doi: 10.1016/j.jnoncrysol.2004.02.071

Author

Kumar, Sushil ; Godet, C. ; Goudovskikh, A. et al. / High-field transport in amorphous carbon and carbon nitride films. In: Journal of Non-Crystalline Solids. 2004 ; Vol. 338. pp. 349-352.

Bibtex

@article{acd0663681064293835bb18b475910b2,
title = "High-field transport in amorphous carbon and carbon nitride films",
abstract = "The temperature and electric field dependence of the current density in hydrogenated amorphous carbon and carbon nitride sandwich devices show a T-1/4 dependence of the ohmic conductivity sigma = sigma(00) - exp[-(T-0/T)(1/4)] characteristic of 3D hopping, a linear correlation between the apparent Lnsigma(00)(F) and T-0(F) values, and a F/T-3/2 scaling of sigma(F, T). The F-2 dependence of Lnsigma(F, T) at intermediate fields, provides similar values of the decay length gamma(-1) of localized 71 state wavefunctions in a-CNx:H (2.4 nm) and a-C:H (2.8 nm) films. The larger conductivity in nitrogen-rich alloys is attributed to a combined effect of N-induced increase in the pi-state density and ordering of the sp(2) phase. ",
keywords = " EFFECTIVE TEMPERATURE, ELECTRONIC-PROPERTIES, DISORDERED SYSTEMS, HOPPING CONDUCTION",
author = "Sushil Kumar and C. Godet and A. Goudovskikh and J.P. Kleider and George Adamopoulos and V. Chu",
year = "2004",
doi = "10.1016/j.jnoncrysol.2004.02.071",
language = "English",
volume = "338",
pages = "349--352",
journal = "Journal of Non-Crystalline Solids",
issn = "0022-3093",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - High-field transport in amorphous carbon and carbon nitride films

AU - Kumar, Sushil

AU - Godet, C.

AU - Goudovskikh, A.

AU - Kleider, J.P.

AU - Adamopoulos, George

AU - Chu, V.

PY - 2004

Y1 - 2004

N2 - The temperature and electric field dependence of the current density in hydrogenated amorphous carbon and carbon nitride sandwich devices show a T-1/4 dependence of the ohmic conductivity sigma = sigma(00) - exp[-(T-0/T)(1/4)] characteristic of 3D hopping, a linear correlation between the apparent Lnsigma(00)(F) and T-0(F) values, and a F/T-3/2 scaling of sigma(F, T). The F-2 dependence of Lnsigma(F, T) at intermediate fields, provides similar values of the decay length gamma(-1) of localized 71 state wavefunctions in a-CNx:H (2.4 nm) and a-C:H (2.8 nm) films. The larger conductivity in nitrogen-rich alloys is attributed to a combined effect of N-induced increase in the pi-state density and ordering of the sp(2) phase.

AB - The temperature and electric field dependence of the current density in hydrogenated amorphous carbon and carbon nitride sandwich devices show a T-1/4 dependence of the ohmic conductivity sigma = sigma(00) - exp[-(T-0/T)(1/4)] characteristic of 3D hopping, a linear correlation between the apparent Lnsigma(00)(F) and T-0(F) values, and a F/T-3/2 scaling of sigma(F, T). The F-2 dependence of Lnsigma(F, T) at intermediate fields, provides similar values of the decay length gamma(-1) of localized 71 state wavefunctions in a-CNx:H (2.4 nm) and a-C:H (2.8 nm) films. The larger conductivity in nitrogen-rich alloys is attributed to a combined effect of N-induced increase in the pi-state density and ordering of the sp(2) phase.

KW - EFFECTIVE TEMPERATURE

KW - ELECTRONIC-PROPERTIES

KW - DISORDERED SYSTEMS

KW - HOPPING CONDUCTION

U2 - 10.1016/j.jnoncrysol.2004.02.071

DO - 10.1016/j.jnoncrysol.2004.02.071

M3 - Journal article

VL - 338

SP - 349

EP - 352

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

ER -