Gregory Czap, Kyungju Noh, et al.
APS Global Physics Summit 2025
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. © IOP Publishing Ltd.
Gregory Czap, Kyungju Noh, et al.
APS Global Physics Summit 2025
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
Robert W. Keyes
Physical Review B
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989