Abstract A conjugated polymer, poly[5,5'-(2,2'-bipyridylene)vinylene-alt-co-2,5-(1,4-bis(octyloxy)vinylene (PBPyVOctV), was synthesized by the polymerization of 5,5'-divinyl-2,2'-bipyridine with 1,4-dibromo-2,5-bis octyloxy) benzene through a Heck cross-coupling reaction. Then, a metallopolymer, PBPyVOctV-Eu(tta)3, was obtained by the bipyridine chelating coordination of PBPyVOctV with europium (Eu(III)) complex, Eu(tta)3.xH2O (where tta is 2-thenoyltrifluoroacetonate). The incorporation of an europium center into the polymer backbone changed the optical and electronic properties of the conjugated polymer. The photoluminescence of the materials and electroluminescence properties of solution-processed organic light-emitting diodes (OLEDs) consisting of composites of PVK as a host with PBPyVOctV, Eu(tta)3.xH2O or PBPyVOctV-Eu(tta)3 as guests were studied. The diode containing PVK:PBPyVOctV-Eu(tta)3 as emissive layer delivered the highest luminance and highest current efficiency, with an orange color emission, as a result of combined emissions from the europium ions and polymer structure.

中文翻译：

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含有联吡啶单元和螯合铕配合物的亚苯基亚乙烯基共轭聚合物的光致发光和电致发光

摘要 共轭聚合物聚[5,5'-(2,2'-联吡啶)亚乙烯基-alt-co-2,5-(1,4-双(辛氧基)亚乙烯基(PBPyVOctV)) 5,5'-二乙烯基-2,2'-联吡啶与 1,4-二溴-2,5-双辛氧基）苯通过 Heck 交叉偶联反应。然后，通过 PBPyVOctV 与铕 (Eu(III)) 络合物 Eu(tta)3.xH2O（其中 tta 是 2-苯酰三氟丙酮酸盐）的联吡啶螯合配位获得金属聚合物 PBPyVOctV-Eu(tta)3。将铕中心掺入聚合物主链中改变了共轭聚合物的光学和电子特性。由 PVK 作为主体与 PBPyVOctV、Eu(tta)3 的复合材料组成的溶液处理有机发光二极管 (OLED) 的材料的光致发光和电致发光特性。研究了作为客体的 xH2O 或 PBPyVOctV-Eu(tta)3。包含 PVK:PBPyVOctV-Eu(tta)3 作为发射层的二极管提供了最高的亮度和最高的电流效率，由于铕离子和聚合物结构的组合发射而产生橙色发射。