The contact resistance between Au/Sn and p-HgCdTe was investigated, Th
e specific contact resistance rho(c)(295K,77K) of Au/Sn/p-HgCdTe was m
easured, being 10(-epsilon) similar to 10(-4)Omega cm(2). By applying
the Au/Sn on p-HgCdTe contact to PV devices of Hg1-xCdxTe (x = 0.23),
the current-voltage characteristics of the p-n junction were measured,
and the results show that the contact resistance is less than 12.6 Om
ega.