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Triphenyl Phosphine Oxide and Carbazole-based Polymer Host Materials for Green Phosphorescent Organic Light-emitting Diodes

Triphenyl Phosphine Oxide and Carbazole-based Polymer Host Materials for Green Phosphorescent Organic Light-emitting Diodes
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摘要 四新奇聚合物, poly ( 3,6-9-decyl-carbazole-alt-1,3-benzene )( PB13CZ ), poly ( 3,6-9-decyl-carbazole-alt-bis (4苯基)(苯基)磷化氢氧化物)( PTPPO38CZ ), poly ( 3,6-9-decyl-carbazole-alt-2,4-phenyl ( diphenyl )磷化氢氧化物)( PTPPO13CZ )并且 poly ( 3,6-9-decyl-carbazole-alt-bis (3苯基)(苯基)磷化氢氧化物)( PTTPO27CZ )被综合,并且他们的热, photophysical 性质和设备应用程序进一步被调查相关有光电的性能的化学结构所有是由他们的高玻璃揭示了转变高他们显示出热稳定性在 5% 重量损失的温度和热分解温度。这些聚合物有宽乐队差距和相对高的三位字节精力层次。作为结果,旋转涂层方法被用来准备与聚合物射出二极管的绿发磷光的器官的光象典型主人材料的 PTPPO38CZ, PTPPO13CZ 和 PTTPO27CZ。主人材料与最大的电流显示出 electroluminescent 性能的聚合物 PTPPO38CZ 的绿设备 2.16 cd 的效率 ?╰ Four novel polymers, poly(3,6-9-decyl-carbazole-alt-1,3-benzene) (PB13CZ), poly(3,6-9-decyl-carbazole-alt- bis(4-phenyl) (phenyl) phosphine oxide) (PTPPO38CZ), poly(3,6-9-decyl-carbazole-alt-2,4-phenyl(diphenyl) phosphine oxide) (PTPPO13CZ) and poly(3,6-9-decyl-carbazole-alt-bis(3-phenyl) (phenyl) phosphine oxide) (PTTPO27CZ) were synthesized, and their thermal, photophysical properties and device applications were further investigated to correlate the chemical structures with the photoelectric performance of bipolar host materials for phosphorescent organic light emitting diodes. All of them show high thermal stability as revealed by their high glass transition temperatures and thermal decomposition temperatures at 5% weight loss. These polymers have wide band gaps and relatively high triplet energy levels. As a result, the spin coating method was used to prepare the green phosphorescent organic light emitting diodes with polymers PTPPO38CZ, PTPPO13CZ and PTTPO27CZ as the typical host materials. The green device of polymer PTPPO38CZ as host material shows electroluminescent performance with maximum current efficiency of 2.16 cd.A-1, maximum external quantum efficiency of 0.7%, maximum brightness of 1475 cd.m-2 and reduced efficiency roll-off of 7.14% at 600 cd.m-2, which are much better than those of the same devices hosted by polymers PTTPO27CZ and PTPPO13CZ.
作者 Hong-ji Jiang Qing-wei Zhang Xu He Xiao-lin Zhang Xin-wen Zhang Hong-ji Jiang, Qing-wei Zhang, Xu He, Xiao-lin Zhang and Xin-wen Zhang (Key Laboratory of Organic Electronics and Information Displays, National Jiangsu Synergetic Innovation Center for Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023, China)
出处 《高分子科学:英文版》 SCIE CAS CSCD 2017年第5期611-622,共12页 Chinese Journal of Polymer Science
基金 the Major Research Program from the State Ministry of Science and Technology (No. 2012CB933301), the National Natural Science Foundation of China (No. 21574068), the Priority Academic Program Development of Jiangsu Higher Education Institutions (No. YX03001), Natural Science Foundation of Jiangsu Province (No. BM2012010), Natural Science Foundation of the Jiangsu Higher Education Institutions of China (No. 15KJB150022) and Jiangsu Government Scholarship for Overseas Studies.
关键词 Triphenyl 磷化氢氧化物 发磷光的器官的轻射出的二极管 热稳定性 三位字节精力层次 聚合物主人材料 Electroluminescent 性能 Triphenyl phosphine oxide Phosphorescent organic light-emitting diode Thermal stability Triplet energy levels Polymer host materials Electroluminescent performance
分类号 O [理学]
作者简介 Corresponding author: Hong-ji Jiang (姜鸿基), E-mail: iamhjjiang@njupt.edu.cn
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