Efficient deep-blue organic light-emitting diodes employing difluoroboron-enabled thermally activated delayed fluorescence emitters

2020 ◽  
Vol 8 (48) ◽  
pp. 17464-17473
Author(s):  
Guijie Li ◽  
Feng Zhan ◽  
Weiwei Lou ◽  
Dan Wang ◽  
Chao Deng ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Design And Development ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Deep Blue ◽  
Organic Light ◽  
Cie Coordinates

The design and development of efficient emitters for deep-blue OLED with CIEy < 0.10 remains a challenge. A new D–π–A-BF2-type TADF emitter BF2-DMCz was developed, and the BF2-DMCz-doped deep-blue OLED achieved a peak EQE of 8.4% with CIE coordinates of (0.149, 0.083).

scholarly journals Enhanced thermally activated delayed fluorescence through bridge modification in sulfone-based emitters employed in deep blue organic light-emitting diodes

2019 ◽  
Vol 7 (22) ◽  
pp. 6664-6671 ◽  
Author(s):  
Pachaiyappan Rajamalli ◽  
Dongyang Chen ◽  
Wenbo Li ◽  
Ifor D. W. Samuel ◽  
David B. Cordes ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Deep Blue ◽  
Organic Light

Two thermally activated delayed fluorescence (TADF) emitters bearing a new dipyridylsulfone core as the electron-accepting unit and di-tert-butyl carbazoles as electron-donating units are reported.

Versatile functionalization of trifluoromethyl based deep blue thermally activated delayed fluorescence materials for organic light emitting diodes

2018 ◽  
Vol 42 (6) ◽  
pp. 4317-4323 ◽  
Author(s):  
Xiao Liang ◽  
Hua-Bo Han ◽  
Zhi-Ping Yan ◽  
Liang Liu ◽  
You-Xuan Zheng ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Excellent Performance ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Deep Blue ◽  
Organic Light

Four deep blue TADF compounds with trifluoromethyl-substituted phenyl/N-heterocyclic rings were investigated both as hosts and guests in OLEDs with excellent performance.

Phosphor sensitized thermally activated delayed fluorescence organic light-emitting diodes with ideal deep blue device performances

2019 ◽  
Vol 7 (28) ◽  
pp. 8562-8568 ◽  
Author(s):  
Kyung Hyung Lee ◽  
Jun Yeob Lee
Keyword(s):  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Blue Color ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Deep Blue ◽  
Organic Light

Phosphorescence sensitized thermally activated delayed fluorescent organic light-emitting diodes realized a high external quantum efficiency of 24.8% and deep blue color coordinates of (0.131, 0.107).

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