Double Emitting Layer Structure for high efficiency and ultra-stable blue Triplet-Triplet Annihilation OLED
Journal
Digest of Technical Papers - SID International Symposium
Journal Volume
54
Journal Issue
1
Pages
1312
Date Issued
2023-01-01
Author(s)
Chu, Chun Chieh
Zhuang, Yuan Zhen
Chen, Chia Hsun
Chu, Chen Chum
Lin, Bo Yen
Liu, Han Kang
Tsai, Yung Cheng
Yuan, Chih Hsien
Chiu, Tien Lung
Abstract
By using the double emitting layer (DEML) structure in a blue triplet-triplet annihilation organic light-emitting diode (TTA-OLED), maximum external quantum efficiency (EQEmax) of 16.1% with CIE coordinates of (0.135, 0.188) and half-lifetime of 224,000 hours at initial luminance of 1,000 cd/m2was achieved. The degradation mechanism of TTA-OLEDs was also investigated by conducting photoluminescence degradation experiment.
Subjects
Blue OLED | double emitting layer | high efficiency | long operation lifetime | triplet-triplet annihilation
SDGs
Type
conference paper