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Ion Transport beyond the Polyether Paradigm: Introducing Oligocarbonate Ion Transporters for Efficient Light-Emitting Electrochemical Cells

机译:离子运输超越聚醚范​​例:为高效发光电化学电池引入低聚碳酸根离子转运蛋白

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摘要

The light-emitting electrochemical cell (LEC) is fundamentally dependent on mobile ions for its operation. In polymer LECs, the mobile ions are commonly provided by dissolving a salt in an ion transporter, with the latter almost invariably being an ether-based compound. Here, the synthesis, characterization, and application of a new class of carbonate-based ion transporters are reported. A polymer LEC, comprising a star-branched oligocarbonate endowed with aliphatic side groups as the ion transporter, features a current efficacy of 13.8 cd A(-1) at a luminance of 1060 cd m(-2), which is a record-high efficiency/luminance combination for a singlet-emitting LEC. It is further established that the design principles of a high-performance carbonate ion transporter constitute the selection of an oligomeric structure over a corresponding polymeric structure and the endowment of the oligomer with functional side chains to render it compatible with the polymeric emitter.%1801295.1-1801295.9
机译:发光电化学电池(LEC)的运行基本上取决于移动离子。在聚合物LEC中,通常通过将盐溶解在离子转运蛋白中来提供可移动离子,而离子转运蛋白几乎总是以醚为基的化合物。在此,报道了新型的基于碳酸盐的离子转运蛋白的合成,表征和应用。聚合物LEC包含具有脂肪族侧基的星状低碳酸酯作为离子转运蛋白,在1060 cd m(-2)的亮度下,其电流效率为13.8 cd A(-1),这是创纪录的高发射单重态LEC的效率/亮度组合。进一步确定的是,高性能碳酸根离子转运蛋白的设计原理包括:在相应的聚合物结构上选择低聚物结构,并选择具有功能性侧链的低聚物,以使其与聚合物发射体相容。%1801295.1- 1801295.9

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