Highly efficient and stable organic light-emitting diode using 4,4′-bis(N-carbazolyl)-9,9′-spirobifluorene as a thermally stable host material

2009 ◽  
Vol 94 (3) ◽  
pp. 033302 ◽  
Author(s):  
Toshimitsu Tsuzuki ◽  
Shizuo Tokito
Keyword(s):  
Light Emitting Diode ◽  
Host Material ◽  
Thermally Stable ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Highly Efficient ◽  
Organic Light

High efficiency above 20% in polymeric thermally activated delayed fluorescent organic light-emitting diodes by a host embedded backbone structure

2019 ◽  
Vol 10 (35) ◽  
pp. 4872-4878 ◽  
Author(s):  
Yun Hwan Park ◽  
Ho Jin Jang ◽  
Jun Yeob Lee
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light ◽  
Backbone Structure

A highly efficient polymeric thermally activated delayed fluorescent (TADF) organic light-emitting diode was developed by synthesizing a copolymer with 9-vinylcarbazole (VCz) and TADF repeating units.

An axially chiral thermally activated delayed fluorescent emitter with a dual emitting core for a highly efficient organic light-emitting diode

2020 ◽  
Vol 56 (65) ◽  
pp. 9380-9383 ◽  
Author(s):  
Yin-Feng Wang ◽  
Meng Li ◽  
Wen-Long Zhao ◽  
Yi-Fan Shen ◽  
Hai-Yan Lu ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light ◽  
Axially Chiral

An axially chiral TADF emitter with a dual-emitting-core showed a high PLQY and EQE (20.8%), while its enantiomers also exhibited CPL properties.

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