Influence of ambient humidity on the surface conductivity of hydrogenated diamond
Mares JJ, Hubik P, Kristofik J, Ristein J, Strobel P, Ley L (2008)
Publication Type: Journal article
Publication year: 2008
Journal
Publisher: Elsevier
Book Volume: 17
Pages Range: 1356
DOI: 10.1016/j.diamond.2008.01.063
Abstract
The enhancement of the electrical conductivity of hydrogen-terminated diamond surfaces due to the adsorption of various chemical species represents a challenging problem and has a high application potential as well. In the transfer doping model of Maier et al. the presence of a water layer that forms spontaneously in moist atmospheres on any surface plays a crucial role. Hence, in the present contribution we have focused our attention on the influence of the relative humidity (RH) on the surface conductivity. In order to perform conductivity measurements in a wet atmosphere an original technique eliminating leakage effects due to adsorbed water was developed. The conductivity was measured at room temperature for RH between 2% and 100%. Despite a rather weak dependence on RH, three well distinguished regions can be identified in the conductivity as a function of RH. Not pretending to offer a first-principles account for this behaviour, a phenomenological explanation of the data is given. © 2008 Elsevier B.V. All rights reserved.
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APA:
Mares, J.J., Hubik, P., Kristofik, J., Ristein, J., Strobel, P., & Ley, L. (2008). Influence of ambient humidity on the surface conductivity of hydrogenated diamond. Diamond and Related Materials, 17, 1356. https://dx.doi.org/10.1016/j.diamond.2008.01.063
MLA:
Mares, J. J., et al. "Influence of ambient humidity on the surface conductivity of hydrogenated diamond." Diamond and Related Materials 17 (2008): 1356.
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