Highly efficient and stable blue thermally activat
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Posted On: 01/14/2017 9:23:30 AM
Highly efficient and stable blue thermally activated delayed fluorescence emitters
Luminophores that consist of carbazolyl and benzonitrile moieties and are shielded by tert-butyl units, are included in novel blue molecules that exhibit high external quantum efficiencies and long lifetimes.
Dongdong Zhang and Lian Duan
11 January 2017, SPIE Newsroom. DOI: 10.1117/2.1201611.006797
Since the pioneering work of Tang and VanSlyke in the 1980s,1 the prospect of using organic materials for organic LEDs (OLEDs) has flourished, as evidenced by the popular use of OLEDs in modern smartphones, flat-panel displays, and solid-state light-emitting applications. Despite such achievements, the insufficient lifetime of blue OLED devices remains a problem in many applications.2 Although thermally activated delayed fluorescence (TADF) emitters—with high external quantum efficiencies (EQEs)—have recently been proposed as an alternative to blue emitters,3 the lifetimes of these devices are still far from satisfactory.
http://spie.org/newsroom/6797-highly-efficien...ID=x124498
Luminophores that consist of carbazolyl and benzonitrile moieties and are shielded by tert-butyl units, are included in novel blue molecules that exhibit high external quantum efficiencies and long lifetimes.
Dongdong Zhang and Lian Duan
11 January 2017, SPIE Newsroom. DOI: 10.1117/2.1201611.006797
Since the pioneering work of Tang and VanSlyke in the 1980s,1 the prospect of using organic materials for organic LEDs (OLEDs) has flourished, as evidenced by the popular use of OLEDs in modern smartphones, flat-panel displays, and solid-state light-emitting applications. Despite such achievements, the insufficient lifetime of blue OLED devices remains a problem in many applications.2 Although thermally activated delayed fluorescence (TADF) emitters—with high external quantum efficiencies (EQEs)—have recently been proposed as an alternative to blue emitters,3 the lifetimes of these devices are still far from satisfactory.
http://spie.org/newsroom/6797-highly-efficien...ID=x124498
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