Single-material contact layer enables low-resistance electron and hole injection across both n-type and p-type 2D semiconductors

https://www.eurekalert.org/news-releases/1144147

"n- and p-type semiconductor channels require separate electrode materials to manage electron and hole flow, complicating sub-nm chip manufacturing... overcome with universal van der Waals tunneling injector using tin diselenide, utilizing weak interatomic forces rather than strong chemical bonds, preserving ultrathin channels creating clean, uniform interface... low-resistance charge-injection pathway tailored to whichever channel type pairs with... vertically stacked 3D microchips, low-power AI"