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Bipolar Fluorenylcarbazole-based Host Materials for Efficient Red Phosphorescent Organic Light-emitting Diodes
增强出版- 发光学报 Vol. 43, Issue 3, Pages: 359-370(2022)
- 作者机构：
1.太原理工大学 新材料界面科学与工程教育部重点实验室，山西 太原 030024
2.西北工业大学 宁波研究院，浙江 宁波 315199
3.宁波诺丁汉大学 化学环境工程系，浙江 宁波 315199
- 作者简介：
[ "凌乾坤(1994 -)，男，河南商丘人，硕士研究生，2019年于河南工程学院获得学士学位，主要从事应用于有机发光二极管的红光磷光双极性主体材料的研究。E-mail: 1192142380@qq.com" ]
[ "陈志宽(1967-)，男，四川绵阳人，博士，教授，博士生导师，1995年于北京大学获得博士学位，主要从事有机光电材料的设计与合成、材料光电特性及薄膜特性、材料的器件特性及其与材料结构的构效关系及器件制程、器件物理、器件集成等方面的研究。E-mail: zkchen@lumilan.cn" ]
[ "王华(1977-)，男，山西平定县人，博士，教授，博士生导师，2007年于太原理工大学获得博士学位，主要从事有机半导体光电材料与器件的研究。E-mail: wanghua001@tyut.edu.cn" ]
[ "李天保(1974-)，男，山西临县人，博士，教授，博士生导师，2008年于太原理工大学获得博士学位，主要从事光电半导体器件及制备工艺的研究。E-mail: litianbao@tyut.edu.cn" ]
- 基金信息：国家自然科学基金(62074109;21875106)
DOI：10.37188/CJL.20210397
CLC： O482.31Received：16 December 2021，
Revised：07 January 2022，
Published：2022-03
- 稿件说明：
移动端阅览
Qian-kun LING, Bi-zheng DONG, Zhi-kuan CHEN, et al. Bipolar Fluorenylcarbazole-based Host Materials for Efficient Red Phosphorescent Organic Light-emitting Diodes[J]. 发光学报, 2022, 43(3): 359-370.
Qian-kun LING, Bi-zheng DONG, Zhi-kuan CHEN, et al. Bipolar Fluorenylcarbazole-based Host Materials for Efficient Red Phosphorescent Organic Light-emitting Diodes[J]. 发光学报, 2022, 43(3): 359-370. DOI： 10.37188/CJL.20210397.
摘要
为提高有机发光二极管的发光效率，设计合成了两种新的红光磷光双极性主体材料FC-CZ-PQZ和FC-BCz-PQZ，两种材料均表现出优秀的光物理性能、较高热稳定能力和平衡的载流子传输能力，FC-BCz-PQZ表现最佳，与FC-Cz-PQZ相比，FC-BCz-PQZ的热稳定能力更强、载流子传输平衡性更好. 以FC-CZ-PQZ和FC-BCz-PQZ为主体，制备了红色PhOLEDs
FC-BCz-PQZ表现出了较高的电致发光性能，电流效率、功率效率和最大外量子效率分别为13.5 cd/A、14.2 lm/W 和 14.8%
说明FC-BCz-PQZ有潜力成为红光PhOLED主体材料.
Abstract
Achieving high-efficiency red phosphorescent organic light-emitting diodes(PhOLEDs) is still a challenge
which is largely related to the host material used in device fabrication. Two new bipolar hosts
2-(9
H
-carbazol-9-yl)-7
7-dimethyl-5-(4-phenylquinazolin-2-yl)-5
7-dihydroindeno［2
1-b］carbazole(FC-CZ-PQZ) and 2-(4-(9
H
-carbazol-9-yl)phenyl)-7
7-dimethyl-5-(4-phenylquinazolin-2-yl)-5
7-dihydroindeno［2
1-b］carbazole(FC-BCz-PQZ)
were designed and synthesised as host materials to fabricate red PhOLEDs. The two compounds exhibited excellent physical properties with high thermal stabilities and balanced charge transport. FC-BCz-PQZ has a better bipolar carrier transport compared to FC-CZ-PQZ. FC-BCz-PQZ-based device demonstrated good electroluminescence performance with the maximum current efficiency
power efficiency and external quantum efficiency of 13.5 cd/A
14.2 lm/W and 14.8%
respectively
suggesting its promising application as a host material for red PhOLEDs.
关键词
Keywords
references
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