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

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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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