Adjustable electroluminescence: blue-green to red organic light-emitting diodes based on novel poly-non-conjugated oligomers

Two new polymers, poly-9,10(1,3-bis(4-ethynylphenoxy)propane)anthracene and poly-1,2(tetra-2,5-thienylene-1,2-vinylene)dimethylsilyslethane, based on conjugated chromophores that are interconnected via non-conjugated spacers, were prepared and characterized in terms of their photo- and electrolumine scence (PL and EL, respectively) properties in pure films and in solid solu tions. The application of solid solutions of the two polymers in PVK:PBD (p olyvinyl carbazole:2-(4-biphenyl)-5-(4-tert-buthyl phenyl)-1,3,4-oxadiazole ) matrices as active layers in adjustable blue-green to red OLED is present ed. (C) 1999 Published by Elsevier Science S.A. All rights reserved.