TY - JOUR
T1 - Achieving High Efficiency at High Luminance in Fluorescent Organic Light-Emitting Diodes through Triplet–Triplet Fusion Based on Phenanthroimidazole-Benzothiadiazole Derivatives
AU - Tang, Xiangyang
AU - Liu, Hui
AU - Xu, Lei
AU - Xu, Xuehui
AU - He, Xin
AU - Liu, Futong
AU - Chen, Jianwu
AU - Peng, Qiming
N1 - Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2021/10/1
Y1 - 2021/10/1
N2 - Achieving high efficiency at high luminance is one of the most important prerequisites towards practical application of any kind of light-emitting diode (LED). Herein, we report highly emissive organic fluorescent molecules based on phenanthroimidazole-benzothiadiazole derivatives capable of maintaining high external quantum efficiency (EQE) at high luminance enabled by triplet–triplet fusion (TTF) in doped organic LEDs. The PIBzP-, PIBzPCN-, and PIBzTPA-based devices showed EQEs of 8.27, 9.15, and 8.64 %, respectively, at luminance of higher than 1000 cd m−2, with little efficiency roll-off.
AB - Achieving high efficiency at high luminance is one of the most important prerequisites towards practical application of any kind of light-emitting diode (LED). Herein, we report highly emissive organic fluorescent molecules based on phenanthroimidazole-benzothiadiazole derivatives capable of maintaining high external quantum efficiency (EQE) at high luminance enabled by triplet–triplet fusion (TTF) in doped organic LEDs. The PIBzP-, PIBzPCN-, and PIBzTPA-based devices showed EQEs of 8.27, 9.15, and 8.64 %, respectively, at luminance of higher than 1000 cd m−2, with little efficiency roll-off.
KW - benzothiadiazole
KW - efficiency roll-off
KW - organic light-emitting diodes
KW - phenanthroimidazole
KW - triplet–triplet fusion
UR - http://www.scopus.com/inward/record.url?scp=85113157371&partnerID=8YFLogxK
U2 - 10.1002/chem.202102136
DO - 10.1002/chem.202102136
M3 - 文章
AN - SCOPUS:85113157371
SN - 0947-6539
VL - 27
SP - 13828
EP - 13839
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 55
ER -