White Organic Light-Emitting Diodes Using Exciplex Emission with Multiple Emitting Layers

2017 ◽  
Vol 215 (2) ◽  
pp. 1700530 ◽  
Author(s):  
Hyun Jung Baek ◽  
Song Eun Lee ◽  
Ho Won Lee ◽  
Geum Jae Yun ◽  
Jaehoon Park ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Exciplex Emission

scholarly journals Efficient Exciplex-Based Deep-Blue Organic Light-Emitting Diodes Employing a Bis(4-fluorophenyl)amine-Substituted Heptazine Acceptor

Molecules ◽  
2021 ◽  
Vol 26 (18) ◽  
pp. 5568
Author(s):  
Jie Li ◽  
Heqi Gong ◽  
Jincheng Zhang ◽  
Hui Liu ◽  
Li Tao ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Blue Emission ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Photoluminescence Quantum Yield ◽  
Organic Light ◽  
High Maximum ◽  
Exciplex Emission ◽  
Amine Groups

The realization of a deep-blue-emitting exciplex system is a herculean task in the field of organic light-emitting diodes (OLEDs) on account of a large red-shifted and broadened exciplex emission spectrum in comparison to those of the corresponding single compounds. Herein, 2,5,8-tris(di(4-fluorophenyl)amine)-1,3,4,6,7,9,9b-heptaazaphenalene (HAP-3FDPA) was designed as an electron acceptor by integrating three bis(4-fluorophenyl)amine groups into a heptazine core, while 1,3-di(9H-carbazol-9-yl)benzene (mCP) possessing two electron-donating carbazole moieties was chosen as the electron donor. Excitingly, the exciplex system of 8 wt% HAP-3FDPA:mCP exhibited deep-blue emission and a high photoluminescence quantum yield of 53.2%. More importantly, an OLED containing this exciplex system as an emitting layer showed deep-blue emission with Commission Internationale de l’Eclairage coordinates of (0.16, 0.12), a peak luminance of 15,148 cd m−2, and a rather high maximum external quantum efficiency of 10.2% along with a low roll-off. This study not only reports an efficient exciplex-based deep-blue emitter but also presents a feasible pathway to construct highly efficient deep-blue OLEDs based on exciplex systems.

Efficient co-host exciplex emission for white organic light-emitting diodes

2018 ◽  
Vol 119 ◽  
pp. 276-280 ◽  
Author(s):  
Hyun Jung Baek ◽  
Song Eun Lee ◽  
Ho Won Lee ◽  
Jisu Kang ◽  
Jaehoon Park ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Exciplex Emission

Color-tunable organic light emitting diodes based on exciplex emission

2009 ◽  
Author(s):  
Junsheng Yu ◽  
Shuangling Lou ◽  
Wen Wen ◽  
Yadong Jiang ◽  
Qing Zhang
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Color Tunable ◽  
Exciplex Emission

White Organic Light-Emitting Diodes Utilized by Near UV-Deep Blue Emitter and Exciplex Emission

2011 ◽  
Vol 11 (2) ◽  
pp. 1381-1384
Author(s):  
Young Wook Park ◽  
Young Min Kim ◽  
Jin Hwan Choi ◽  
Tae Hyun Park ◽  
Hyun Ju Choi ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light ◽  
Exciplex Emission

scholarly journals Organic light-emitting diodes with a spacer enhanced exciplex emission

2014 ◽  
Vol 104 (15) ◽  
pp. 153302 ◽  
Author(s):  
Fei Yan ◽  
Rui Chen ◽  
Handong Sun ◽  
Xiao Wei Sun
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Exciplex Emission
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