Isomer dependent molecular packing and carrier mobility of N-phenylcarbazole–phenanthro[9,10-d]imidazole based materials as hosts for efficient electrophosphorescence devices

2019 ◽  
Vol 7 (43) ◽  
pp. 13486-13492 ◽  
Author(s):  
Zhiqiang Li ◽  
Zong Cheng ◽  
Jianyan Lin ◽  
Ning Xie ◽  
Chenglong Li ◽  
...  
Keyword(s):  
Carrier Mobility ◽  
Light Emitting Diodes ◽  
Molecular Packing ◽  
Organic Light Emitting Diodes ◽  
Imidazole Derivative ◽  
High Brightness ◽  
Light Emitting ◽  
Organic Light ◽  
Low Efficiency

A phenanthro[9,10-d]imidazole derivative with enhanced carrier mobility was developed for high brightness and low efficiency roll-off phosphorescent organic light-emitting diodes.

Improvement of efficiency and its roll-off at high brightness in white organic light-emitting diodes by strategically managing triplet excitons in the emission layer

2018 ◽  
Vol 6 (40) ◽  
pp. 10793-10803 ◽  
Author(s):  
Shian Ying ◽  
Dezhi Yang ◽  
Xianfeng Qiao ◽  
Yanfeng Dai ◽  
Qian Sun ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
High Brightness ◽  
Light Emitting ◽  
Organic Light ◽  
Low Efficiency ◽  
Triplet Excitons

High-performance WOLEDs realizing high efficiency and low efficiency roll-off simultaneously were achieved by strategically managing triplet excitons in the emission layer.

Efficient pyrene-imidazole derivatives for organic light-emitting diodes

RSC Advances ◽  
2016 ◽  
Vol 6 (21) ◽  
pp. 17239-17245 ◽  
Author(s):  
Yulong Liu ◽  
Qing Bai ◽  
Jinyu Li ◽  
Shitong Zhang ◽  
Chen Zhang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Imidazole Derivative ◽  
Light Emitting ◽  
Imidazole Derivatives ◽  
Highly Efficient ◽  
Organic Light ◽  
Low Efficiency

A highly efficient green OLED based on an AIE-active pyrene-imidazole derivative PyTPEI achieves the highest LE of 8.73 cd A−1 with low efficiency roll-off.

Extremely low-efficiency roll-off of phosphorescent organic light-emitting diodes at high brightness based on acridine heterocyclic derivatives

2018 ◽  
Vol 6 (36) ◽  
pp. 9713-9722 ◽  
Author(s):  
Minyu Chen ◽  
Jiali Yang ◽  
Zhonghua Ye ◽  
Shuanglong Wang ◽  
Zhenyu Tang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Brightness ◽  
Light Emitting ◽  
Organic Light ◽  
Heterocyclic Derivatives ◽  
Low Efficiency

Optimal limited roll-off PhOLEDs are achieved based on acridine heterocyclic derivatives.

Efficient organic light-emitting diodes based on iridium(III) complexes containing indolo[3,2,1-jk]carbazole derivatives with narrow emission bandwidths and low efficiency roll offs

2021 ◽  
Author(s):  
Xiang-Ji Liao ◽  
Jin-Jun Zhu ◽  
Li Yuan ◽  
Zhi-Ping Yan ◽  
Xu-Feng Luo ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Carbazole Derivatives ◽  
Highly Efficient ◽  
Organic Light ◽  
Low Efficiency ◽  
Narrow Emission

In this work, two cyclometalated ligands 2-(pyridin-2-yl)indolo[3,2,1-jk]carbazole (pyidcz) and 2-(4-(trifluoromethyl)pyridin-2-yl)indolo[3,2,1-jk]carbazole (tfpyidcz) using indolo[3,2,1-jk]carbazole unit were synthesized for highly efficient iridium(III) complexes (pyidcz)2Ir(tmd) and (tfpyidcz)2Ir(tmd) (tmd = 2,2,6,6-tetramethyl-3,5-heptanedione). The two Ir(III)...

Film-forming hole transporting materials for high brightness flexible organic light-emitting diodes

2016 ◽  
Vol 125 ◽  
pp. 36-43 ◽  
Author(s):  
Xicheng Liu ◽  
Jing You ◽  
Yin Xiao ◽  
Shirong Wang ◽  
Wenzheng Gao ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Brightness ◽  
Light Emitting ◽  
Organic Light ◽  
Film Forming ◽  
Hole Transporting ◽  
Hole Transporting Materials
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