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Efficient and high colour-purity green-light polymer light-emitting diodes (PLEDs) based on a PVK-supported Tb3+-containing metallopolymer
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2017-08-08 00:00:00 , DOI: 10.1039/c7tc02092a
Lin Liu 1, 2, 3, 4 , Mengyuan Pang 1, 2, 3, 4 , Hongting Chen 4, 5, 6, 7 , Guorui Fu 1, 2, 3, 4 , Baoning Li 1, 2, 3, 4 , Xingqiang Lü 1, 2, 3, 4 , Lei Wang 4, 5, 6, 7
Affiliation  

Based on the free-radical copolymerization of the green-light complex monomer [Tb(eb-PMP)3(4-VB-PBI)] (2; Heb-PMP = 4-(2-ethylbutanoyl)-1-phenyl-3-methyl-1H-pyrazol-5(4H)-one; 4-VB-PBI = 1-(4-vinylbenzyl)-(pyridin-2-yl)-1H-benzo[d]imidazole) with NVK (N-vinylcarbazole), the obtained Tb3+-containing metallopolymer poly(NVK-co-2) with an energy transfer from additional PVK to Tb3+ ion was used as the emitting material of polymer light-emitting diodes (PLEDs); it exhibited record renewed efficiencies (24.63 cd A−1, 7.81%, and 6.45 lm W−1) of Tb3+-based extreme colour-purity green-light PLEDs and superior performance of colour-stability and low efficiency roll-off to small-molecule Tb3+-complex's OLEDs.

中文翻译:

基于PVK负载的含Tb 3+的金属聚合物的高效高色纯度绿光聚合物发光二极管(PLED)

基于绿色复合单体[Tb(eb-PMP)3(4-VB-PBI)](2 ; Heb-PMP = 4-(2-乙基丁酰基)-1-苯基-3 -甲基-1 H-吡唑-5(4 H)-1; 4-VB-PBI = 1-(4-乙烯基苄基)-(吡啶-2-基)-1 H-苯并[ d ]咪唑)与NVK((N-乙烯基咔唑),将获得的含Tb 3+的金属聚合物聚(NVK- co -2)的能量从另外的PVK转移到Tb 3+离子中,用作聚合物发光二极管(PLED)的发光材料。它展现了创纪录的新效率(24.63 cd A -1,基于Tb 3+的7.81%和6.45 lm W -1)的超高色纯度绿光PLED,以及出色的色彩稳定性和低效率降到小分子Tb 3+ -复合物的OLED性能。
更新日期:2017-09-14
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