Patent ID: 7981719

Claim:
A process for fabricating a thin film semiconductor device, comprising, not necessarily in the following order, the steps of: (a) depositing, onto a substrate, a thin film of n-channel organic semiconductor material that comprises an N,N′-di(arylalkyl)-substituted-naphthalene tetracarboxylic diimide compound having a substituted or unsubstituted carbocyclic aromatic ring system attached to each imide nitrogen atom through a divalent hydrocarbon group, wherein substituents, if any, on each carbocyclic aromatic ring system are electron donating organic groups, such that the organic semiconductor material exhibits a field effect electron mobility that is greater than 0.01 cm 2 /Vs; (b) forming a spaced apart source electrode and drain electrode, wherein the source electrode and the drain electrode are separated by, and electrically connected with, the n-channel semiconductor film; and, (c) forming a gate electrode spaced apart from the organic semiconductor material, wherein the N,N′-di(arylalkyl)-substituted-naphthalene tetracarboxylic diimide compound is represented by the following structure: wherein X is a —CH 2 — or alkyl substituted —CH 2 — divalent group, m is 0, n is 2 or 3, and wherein in said structure, all of R 1 , R 3 , R 4 , R 5 , R 6 , R 8 , R 9 , and R 10 are H, and at least one of R 2 and R 7 is an alkyl group.