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首页> 外文期刊>Journal of the Brazilian Chemical Society >Improving the Electroluminescence of [Zn(salophen)(OH 2 )] in Polyfluorene-Based Light-Emitting Diode: The Role of Energy Transfer and Charge Recombination
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Improving the Electroluminescence of [Zn(salophen)(OH 2 )] in Polyfluorene-Based Light-Emitting Diode: The Role of Energy Transfer and Charge Recombination

机译：改善基于聚芴的发光二极管中[Zn（salophen）（OH 2）]的电致发光：能量转移和电荷复合的作用

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摘要

Combining two or more different compounds with advantageous properties has been a useful and straightforward strategy in achieving a new class of materials with improved physical properties. This has been especially true for electronic polymers, whose optoelectronic properties can be completely tuned, and even improved, when mixed with other polymeric materials, dye molecules and guest coordination compounds. Here, a light-emitting diode prepared with the conjugated polymer poly[(9,9-dioctylfluorenyl-2,7-diyl)- alt - co -(9,9-di-{5'-pentanyl}-fluorenyl-2,7-diyl)] (PFOFPen) as the host material and aquo[ N , N '-bis(salicylidene)- o -phenylenediamine]zinc(II) ([Zn(salophen)(OH 2 )]) as the guest molecule was studied in terms of its photo and electroluminescence properties. The role of the Zn II coordination compound as a guest in the electroluminescence is discussed as a strategy for the improvement of the electroluminescence performance of coordination compounds using conjugated polymers as matrices. An additional advantage of these composites is that they are solution processable, a low-cost and time efficient alternative to vacuum vapor deposition. Additionally, the photophysical processes involved in both electroluminescence and photoluminescence emissions are discussed because they are markedly different.
机译：将两种或更多种具有有利性能的不同化合物组合在一起已成为一种获得具有改善的物理性能的新型材料的有用且直接的策略。对于电子聚合物尤其如此，当与其他聚合物材料，染料分子和客体配位化合物混合时，其光电子性能可以完全调整，甚至可以改善。在此，使用共轭聚合物聚[（9,9-二辛基芴基-2,7-二基）-alt-co-（9,9-二-{5'-戊基}-芴基-2， [N-N'-双（水杨基）-邻-苯二胺]锌（II）（[Zn（salophen）（OH 2）]）作为客体分子为主体材料根据光和电致发光特性进行了研究。讨论了Zn II配位化合物作为客体在电致发光中的作用，作为使用共轭聚合物作为基质改善配位化合物电致发光性能的策略。这些复合材料的另一个优点是它们是可溶液加工的，是真空气相沉积的低成本和省时的选择。另外，讨论了电致发光和光致发光发射中涉及的光物理过程，因为它们明显不同。

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