利用新型的聚[9,9-二辛基芴-9, 9-(双(3′-(N,N-二甲基)-N-乙基铵+溴-)丙基)芴-4,7-二噻吩-2-基-2,1,3-苯并硒二唑](PFNBr-DBSe)共扼聚电解质制备了聚合物发光二极管.这类共扼聚电解质可用乙醇等溶剂成膜,不仅可代替传统的甲苯等芳香性非极性溶剂, 而且有利于制备溶液型的多层显示器件.文章研究了这类新型聚电解质的光致发光特性及发光二极管器件的电荧光特性.研究表明在紫外光照射或电激发下,窄带系的DBSe链段通过俘获激子能够实现有效的能量转移.聚电解质中DBSe的含量在5 %以上,其器件具有电致发光峰值为700～740 nm的饱和红光发射.所制聚电解质器件在用铝作电极时的电致发光效率比用钡作电极时要高.
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