P-176: Innovative Trilayer Organic Light Emitting Transistor (OLET) Structure for Blue Emission

We report on a three-layer organic light-emitting transistor (3L-OLET) comprising a novel set of semiconductors as transport layers, 2,7-Dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) and 2,5-bis[4-(heptadecafluorooctyl)phenyl]thieno[3,2-b]thiophene (N-F2-6). These materials, combined with an emissive layer of a 4,4'-Bis(N-carbazolyl)-1,1'-biphenyl (CBP) derivative, 4,4'-bis(3,6-dineopentyl-9H-carbazole-9-yl)-1,'-biphenyl (NP4-CBP) and a new dye (BLUE1), have been used to obtain blue electroluminescent device.