Nano Archive

Sulfur passivation for ohmic contact formation to InAs nanowires

Suyatin, D. B. and Thelander, C and Bj"ork, M. T. and Maximov, I and Samuelson, L (2007) Sulfur passivation for ohmic contact formation to InAs nanowires. Nanotechnology, 18 (10). 105307 (5pp).

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We have studied the formation of ohmic contacts to InAs nanowires by chemical etching and passivation of the contact areas in an ammonium polysulfide, (NH4)2Sx, water solution. The nanowires were exposed to different dilution levels of the (NH4)2Sx solution before contact metal evaporation. A process based on a highly diluted (NH4)2Sx solution was found to be self-terminating, with minimal etching of the InAs. The stability of the contacts was investigated with electrical measurements as a function of storage time in vacuum and air.

Item Type:Article
ID Code:650
Deposited By:Prof. Alexey Ivanov
Deposited On:16 Mar 2009 10:41
Last Modified:26 Mar 2009 11:50

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