Efficient single-emitting layer hybrid white organic light-emitting diodes with low efficiency roll-off, stable color and extremely high luminance

2015 ◽  
Vol 30 ◽  
pp. 85-91 ◽  
Author(s):  
Baiquan Liu ◽  
Jianhua Zou ◽  
Zhongwei Zhou ◽  
Lei Wang ◽  
Miao Xu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Luminance ◽  
Light Emitting ◽  
Organic Light ◽  
Low Efficiency

Non-doped organic light-emitting diodes based on phenanthroimidazole-triphenylamine derivatives with a low efficiency roll-off of 9% at a high luminance of 10 000 cd m−2

2020 ◽  
Vol 8 (41) ◽  
pp. 14446-14452
Author(s):  
Chunya Du ◽  
Futong Liu ◽  
Hui Liu ◽  
Xin He ◽  
Dongyan Jiang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Fine Tuning ◽  
High Luminance ◽  
Light Emitting ◽  
Organic Light ◽  
Low Efficiency

The “hot exciton” material TPPI-BZPCN is successfully achieved by fine-tuning the T1 features of acceptor. The non-doped device based on TPPI-BZPCN exhibits a maximum EQE of 3.33%, and remains 3.03% at a high luminescence of 10 000 cd m−2.

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)...

Highly efficient bluish green organic light-emitting diodes of iridium(iii) complexes with low efficiency roll-off

2018 ◽  
Vol 47 (22) ◽  
pp. 7587-7593 ◽  
Author(s):  
Ning Su ◽  
Zheng-Guang Wu ◽  
You-Xuan Zheng
Keyword(s):  
Current Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Current ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Organic Light ◽  
Bluish Green ◽  
Low Efficiency

Two efficient bluish green iridium(iii) complexes were applied as emitters in the organic light-emitting diodes, which showing high current efficiency of 58.17 cd A−1 and external quantum efficiency of 25.33% with low efficiency roll-off.

Solution-processable orange-red thermally activated delayed fluorescence emitters with 3,6-disubstituted carbazole for highly efficient OLEDs with low efficiency roll-off

2022 ◽  
Author(s):  
Yaxing Zhang ◽  
Yuanyuan Zheng ◽  
Changsheng Shi ◽  
Jinyan Zhang ◽  
Tao Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light ◽  
Green Materials ◽  
Device Efficiency ◽  
Low Efficiency

The progress of orange-red thermally activated delayed fluorescence (TADF) emitters for solution-processed organic light-emitting diodes (OLEDs) is still lagged behind blue and green materials in terms of device efficiency. In...

High efficiency blue/green/yellow/red fluorescent organic light-emitting diodes sensitized by phosphors: general design rules and electroluminescence performance analysis

2019 ◽  
Vol 7 (36) ◽  
pp. 11293-11302 ◽  
Author(s):  
Jingwen Yao ◽  
Shian Ying ◽  
Qian Sun ◽  
Yanfeng Dai ◽  
Xianfeng Qiao ◽  
...  
Keyword(s):  
Performance Analysis ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Luminance ◽  
Design Rules ◽  
Light Emitting ◽  
General Design ◽  
Organic Light

Phosphor sensitized fluorescent organic light-emitting diodes realize high efficiency and low roll-off at high luminance.

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