Journal
APPLIED PHYSICS LETTERS
Volume 101, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4742142
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- National Science Foundation (DIVER)
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The current-voltage characteristics at a uniform ohmic contact are, by definition, dominated by its series resistance and ordinarily offer little information, beyond an upper-bound, on the Schottky barrier height (SBH) of the metal-semiconductor junction. We demonstrate through temperature-dependent measurements of Au ohmic contacts on n-type Si(100)1 x 1-S, however, that quantitative information on not only the magnitude of the SBH, to within +/- 0.03 eV, but also the effective conduction area can still be deduced. Details of these analyses, which require the use of a thin Si epi-layer, and the partisan interlayer mechanism, which lead to the formation of ohmic contacts, are discussed. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4742142]
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