Dichalcogenides in a 2D layer like WS2 or MoS2 for example. These can already be grown on silicon wafers but are hard to integrate with other materials. https:

Dichalcogenides in a 2D layer like WS2 or MoS2 for example. These can already be grown on silicon wafers but are hard to integrate with other materials. https://en.wikipedia.org/wiki/Transition_metal_dichalcogenide_monolayers https://en.wikipedia.org/wiki/Transition_metal_dichalcogenid...