Patent ID: 8309394

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 an organic semiconducting composition consists essentially of an N,N-dicycloalkyl-substituted naphthalene diimide and a polymer additive comprising an insulating or semiconducting polymer having a permittivity at 1000 Hz of at least 1.5 and up to and including 5, and exhibits a field effect electron mobility that is greater than 0.001 cm 2 /V·sec, (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 thin film of the organic semiconducting composition, and, (c) forming a gate electrode spaced apart from the organic semiconducting composition, wherein the N,N-dicycloalkyl-substituted naphthalene diimide is present in the organic semiconductive composition in an amount of at least 50 weight % and up to and including 95 weight %, based on total organic semiconductive composition solids, and the N,N-dicycloalkyl-substituted naphthalene diimide is represented by the following Structure (II): wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , and R 10 are each independently H or an electron donating organic group, or any two adjacent R groups on a ring system can combine to form a four- to seven-membered substituted or unsubstituted alicyclic ring, the Y groups are independently alkyl, alkenyl, alkoxy, aryl, or arylalkyl groups, halogens, cyano, fluorine-containing groups, carbonyl-containing, or carboxy-containing groups, m is an integer of from 0 to 4, or the N,N-dicycloalkyl-substituted naphthalene diimide is represented by one of the following Structures (IIIa), (IIIb), (IVa), and (IVb): wherein R 4 is a C 1 -C 12 alkyl group, C 2 -C 8 alkylene group, substituted phenyl or cyclohexyl group, C 1 -C 8 alkoxy group, C 1 -C 8 carbonyl, carboxy substituent, carbonyl-containing substituent, fluorine, or fluorine containing organic or inorganic group, R 8 is H, any of the substituents defined for R 4 , or an N,N′-cycloalkyl-substituted naphthalene-1,4,5,8-bis-carboximide moiety in which one of the imide nitrogen groups in the R 8 group is the point of attachment to the cyclohexyl group either directly or indirectly to provide a bis compounds based on a central moiety that is disubstituted with two N,N′-cycloalkyl-substituted naphthalene-1,4,5,8-bis-carboximide moieties, the Y groups are independently alkyl, alkenyl, alkoxy, aryl, or arylalkyl groups, halogens, cyano, fluorine-containing groups, carbonyl-containing or carboxy-containing groups, and m is an integer of from 0 to 2.