초록 |
Several novel conjugated polymers using newly developed templates for the stabilized EL emission are reported. Poly(2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[def]phenanthrene)) (PCPP) and poly(5,5,10,10-tetrakis(2-ethylhexyl)-5,10-dihydroindeno[2,1-a]indene-2,7-diyl) (PININE) are new class of polymers utilizing new back-bones. These materials emit efficient and stabilized EL without exhibiting any unwanted peaks even after prolonged annealing at an elevated temperature of 150oC in air, or operation of the device. New electron deficient units, dialkyl-2H-benzimidazole and pyrrolo[3,2-b]pyrrole, were synthesized and utilized for the syntheses of the conjugated polymers containing pairs of electron rich unit and electron deficient moiety for OPVs. |