Patent ID: 7781761

Claim:
An OTFT comprising: a. a substrate b. an insulating layer; c. a gate electrode; d. a source electrode; e. a drain electrode; and f. an organic semiconductor layer comprising a compound of Formula 2, wherein m and n are integers selected independently from 0-10; X is selected independently from O, Te, Se and NR; R 1 -R 18 are selected independently from hydrogen; substituted and unsubstituted alkyl; substituted and unsubstituted aryl; substituted and unsubstituted heteroaryl; halogen; hydroxy; substituted and unsubstituted aryloxy; substituted and unsubstituted alkoxy; substituted and unsubstituted alkenyl; substituted and unsubstituted alkynyl; substituted and unsubstituted amino; substituted and unsubstituted alkylthio; substituted and unsubstituted phosphino; substituted and unsubstituted silyl; —COR; —COOR; —PO 3 R 2 ; —OPO 3 R 2 ; —CN; —C n F 2n+1 ; and —C n F 2n+1 C m H 2m+1 , wherein any two adjacent groups, R 1 -R 18 can be taken together to form a ring; and R is selected from hydrogen; substituted and unsubstituted alkyl; substituted and unsubstituted aryl; substituted and unsubstituted heteroaryl; substituted and unsubstituted alkenyl; substituted and unsubstituted alkynyl; and substituted or unsubstituted amino and wherein the insulating layer, the gate electrode, the organic semiconductor layer, the source electrode and the drain electrode are arranged in any sequence, provided that the gate electrode and the organic semiconductor layer both contact the insulating layer, the source electrode and the drain electrode both contact the organic semiconductor layer and the electrodes are separated from each other.