基于苝的非掺杂荧光白色有机电致发光器件

兰州理工大学学报 ›› 2021, Vol. 47 ›› Issue (6): 15-20.

基于苝的非掺杂荧光白色有机电致发光器件

吴有智^*1,梁楠¹,赵玉康¹,张材荣²

1.兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室, 甘肃兰州 730050;
2.兰州理工大学理学院, 甘肃兰州 730050

收稿日期:2021-03-22 出版日期:2021-12-28 发布日期:2021-12-28
通讯作者: 吴有智(1965-),男,甘肃靖远人,博士,教授.Email:youzhiwu@163.com
基金资助:
国家自然科学基金(11964016)

Non-doped fluorescent white organic electroluminescent device based on perylene

WU You-zhi¹, LIANG Nan¹, ZHAO Yu-kang¹, ZHANG Cai-rong²

1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou Univ. of Tech., Lanzhou 730050, China;
2. School of Science, Lanzhou Univ. of Tech., Lanzhou 730050, China

Received:2021-03-22 Online:2021-12-28 Published:2021-12-28

摘要/Abstract

摘要： 采用两种经典传统荧光材料作为发光层,制备了非掺杂白色有机电致发光器件(WOLEDs).在器件中两层苝(perylene)以薄层的方式分别置于双极性主体材料CBP(4,4’-di (N-carbazole)biphyenyl)两侧作为蓝光发射体,一层超薄的红荧烯(rubrene)插入CBP中作为橙光发射体.通过改变rubrene在CBP中的插入位置获得了高效率白色荧光器件,最高电流效率为6.6 cd/A(外量子效率为2.6%),最高亮度为18 480 cd/m²,且其中一种器件在200 mA/cm²的高电流密度下,CIE(commission internationale de l’eclairage)色坐标可达理想白光平衡点(0.33,0.33).

关键词: 荧光, 白色, 有机电致发光器件, 苝, 红荧烯

Abstract: By using two typical traditional fluorescent materials as the light-emitting layer, an non-doped all fluorescent white organic light-emitting diode (WOLED) is fabricated. In the device, two thin layers of perylene are located at both sides of ambipolar host material CBP (4,4’-N,N′-dicarbazole-biphyenyl) as blue emitters, an ultra-thin rubrene layer inserted into CBP as orange emitter. A simple and efficient OLED is obtained by varying the insertion position of rubrene in CBP, the highest current efficiency is 6.6 cd/A (external quantum efficiency is 2.6%), the maximum brightness is18 480 cd/m²,and Commission Internationale de l’Eclairage (CIE) co-ordinates can reach the ideal white light equilibrium point (0.33, 0.33) at a current density of 200 mA/cm².

Key words: fluorescence, white, organic electroluminescent device (OLED), perylene, rubrene

中图分类号:

TN383+.1

吴有智,梁楠,赵玉康,张材荣. 基于苝的非掺杂荧光白色有机电致发光器件[J]. 兰州理工大学学报, 2021, 47(6): 15-20.

WU You-zhi, LIANG Nan, ZHAO Yu-kang, ZHANG Cai-rong. Non-doped fluorescent white organic electroluminescent device based on perylene[J]. Journal of Lanzhou University of Technology, 2021, 47(6): 15-20.

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