基于2-(4-联苯基)-5-(4-咔唑-9-基)苯基-1,3,4-恶二唑的高性能蓝色电致发光器件。

High-performance blue electroluminescent devices based on 2-(4-biphenylyl)-5-(4-carbazole-9-yl)phenyl-1,3,4-oxadiazole.

作者信息

Guan Min, Bian Zu Qiang, Zhou Yi Feng, Li Fu You, Li Zhong Jun, Huang Chun Hui

机构信息

State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, 100871, PR China.

出版信息

Chem Commun (Camb). 2003 Nov 7(21):2708-9. doi: 10.1039/b307571k.

DOI:10.1039/b307571k

PMID:14649822

Abstract

An electron transporting moiety (1,3,4-oxadiazole) and a hole transporting moiety (carbazole) were combined to create 2-(4-biphenylyl)-5-(4-carbazole-9-yl)phenyl-1,3,4-oxadiazole (CzOxa), a three layer device with a configuration of ITO/TPD(50 nm)/CzOxa(40 nm)/AlQ(40 nm)/Mg0.9Ag0.1(200 nm)/Ag(80 nm) which exhibited a blue emission peak at approximately 470 nm (x = 0.14, y = 0.19) with a maximum luminance of 26,200 cd m(-2) at a drive voltage of 15 V and a maximum luminous efficiency of 2.25 lm W(-1).

摘要

将电子传输部分（1,3,4-恶二唑）和空穴传输部分（咔唑）结合起来，制备了2-(4-联苯基)-5-(4-咔唑-9-基)苯基-1,3,4-恶二唑（CzOxa），其为一种具有ITO/TPD（50纳米）/CzOxa（40纳米）/AlQ（40纳米）/Mg0.9Ag0.1（200纳米）/Ag（80纳米）结构的三层器件，该器件在约470纳米处呈现蓝色发射峰（x = 0.14，y = 0.19），在15伏驱动电压下最大亮度为26,200坎德拉每平方米，最大发光效率为2.25流明每瓦。