基于四取代咔唑衍生物的双极主体材料及溶液加工绿色磷光OLED
Novel Bipolar Hosts for Solution-processable Green Phosphorescent OLEDs Based on Tetrasubstituted Carbazole Derivatives
摘要
Abstract
Two tetrasubstituted carbazole derivatives TBICz and TOXDCz have been designed and synthesized,which possess the twist skeletons and exhibit excellent thermal and morphological stabilities.Utilizing these novel compounds as host material,high efficiency solution-processed green phosphorescent organic light-emitting diodes(PhOLEDs)have been achieved.The high triplet energies of TBICz and TOXDCz ensure efficient energy transfer from the host to the phosphor and triplet exciton confinement on the phosphor.Solution-processable green phospho-rescent devices employing Ir(ppy)3 as guest and the two tetrasubstituted carbazole derivatives as hosts exhibit high ef-ficiencies.The best EL performance is achieved for the TBICz-based device,with a maximum current efficiency of 27.3 cd/A,a maximum power efficiency of 15.9 lm/W,and a maximum external quantum efficiency of 7.8％,which provides more host material options for solution-processed OLEDs.关键词
四取代咔唑衍生物/绿光磷光OLED/溶液加工/双极主体材料Key words
tetrasubstituted carbazole derivatives/green phosphorescent organic light-emitting diodes/solution-pro-cessed/bipolar host分类
数理科学引用本文复制引用
黄宏,张友明,华涛,李能泉,谢国华..基于四取代咔唑衍生物的双极主体材料及溶液加工绿色磷光OLED[J].发光学报,2025,46(11):1971-1979,9.基金项目
深圳市科技计划项目(20231127123500001,20231127120511001,JCYJ20240813143022029) （20231127123500001,20231127120511001,JCYJ20240813143022029）
深圳信息职业技术大学项目(TD2024E002,SZIIT2025KJ045,SZIIT2024KJ021) （TD2024E002,SZIIT2025KJ045,SZIIT2024KJ021）
国家自然科学基金(52373195,62175189,22405177) （52373195,62175189,22405177）
广东省基础研究与应用基础研究基金(2022A1515110874,20205A1515010054)Supported by Shenzhen Science and Technology Program(20231127123500001,20231127120511001,JCYJ20240813143022029) （2022A1515110874,20205A1515010054）
Shenzhen Institute of Information Technology(TD2024E002,SZIIT2025KJ045,SZIIT2024KJ021) （TD2024E002,SZIIT2025KJ045,SZIIT2024KJ021）
National Natural Science Foundation of China(5237319,62175189,22405177) （5237319,62175189,22405177）
Guangdong Basic and Applied Basic Research Foundation(2022A1515110874,20205A1515010054) （2022A1515110874,20205A1515010054）
