Patent ID: 7999255

Claim:
A field effect transistor of the type having a source region and a drain region, a channel layer extending between the source region and the drain region, the channel layer including a semiconducting material, a gate region disposed in spaced adjacency to the channel layer, an electrically insulating layer between the gate region and the source region, drain region and channel layer; wherein said channel layer comprising a film of a metal chalcogenide semiconducting material prepared by depositing a film of a metal chalcogenide which comprises: contacting an isolated hydrazinium-based precursor of a metal chalcogenide and a solvent having therein a solubilizing additive to form a solution of a complex thereof; applying said solution of said complex onto a substrate to produce a coating of said solution on said substrate; removing said solvent from said coating to produce a film of said complex on said substrate; and thereafter annealing said film of said complex to produce a metal chalcogenide film on said substrate.