Highly efficient green electroluminescence of iridium(iii) complexes based on (1H-pyrazol-5-yl)pyridine derivatives ancillary ligands with low efficiency roll-off

2018 ◽  
Vol 6 (21) ◽  
pp. 5778-5784 ◽  
Author(s):  
Ning Su ◽  
Guang-Zhao Lu ◽  
You-Xuan Zheng
Keyword(s):  
Current Efficiency ◽  
External Quantum Efficiency ◽  
Organic Light Emitting Diodes ◽  
Pyridine Derivatives ◽  
High Current ◽  
High Current Efficiency ◽  
Ancillary Ligands ◽  
Light Emitting ◽  
Organic Light ◽  
Low Efficiency

Four efficient green iridium(iii) complexes were applied as emitters in the organic light-emitting diodes, which showing high current efficiency of 92 cd A−1 and external quantum efficiency of 28.90% with low efficiency roll-off.

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.

High performance solution-processed green phosphorescent organic light-emitting diodes with high current efficiency and long-term stability

2019 ◽  
Vol 7 (37) ◽  
pp. 11569-11580 ◽  
Author(s):  
Athithan Maheshwaran ◽  
Vijaya Gopalan Sree ◽  
Ho-Yeol Park ◽  
Woosum Cho ◽  
Hyein Kim ◽  
...  
Keyword(s):  
Current Efficiency ◽  
High Performance ◽  
Organic Light Emitting Diodes ◽  
High Current ◽  
Solution Processed ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Long Term Stability ◽  
Organic Light

Highly efficient (D–π–A)-type host and green Ir(iii) complexes are introduced for solution-processed PHOLEDs that achieve high CE with considerably high EQE. The devices with symmetrical complex show more stable than those with asymmetrical complex.

Solution-processable, high current efficiency deep-blue organic light-emitting diodes based on novel biphenyl-imidazole derivatives

2020 ◽  
Vol 8 (32) ◽  
pp. 11239-11251
Author(s):  
Zheng Zhang ◽  
Yuqin Li ◽  
Xiaoming Wu ◽  
Wenyi Chu ◽  
Shougen Yin
Keyword(s):  
Current Efficiency ◽  
Organic Light Emitting Diodes ◽  
High Current ◽  
High Luminance ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light ◽  
Maximum Current ◽  
Very High

The optimal device VI exhibited a very high luminance of 13 836 cd m−2 and a maximum current efficiency of 6.12 cd A−1.

Homoleptic mer-Ir(iii) complexes for highly efficient solution-processable green phosphorescent organic light-emitting diodes with high current efficiency

2020 ◽  
Vol 8 (18) ◽  
pp. 6086-6092 ◽  
Author(s):  
Athithan Maheshwaran ◽  
Vijaya Gopalan Sree ◽  
Raja Kumaresan ◽  
Ho-Yeol Park ◽  
Jungmin Choi ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Luminous Efficiency ◽  
Organic Light Emitting Diodes ◽  
High Current ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

Highly efficient green-emitting phosphorescent Ir(iii) complexes with meridional configurations are introduced for solution-processed PHOLEDs that achieve high CE with high EQE. The unexpected high PLQYs leads to high luminous efficiency. 

High performance gold(iii)-based white organic light-emitting devices with extremely small efficiency roll-off

2019 ◽  
Vol 7 (27) ◽  
pp. 8457-8464 ◽  
Author(s):  
Wai-Lung Cheung ◽  
Shiu-Lun Lai ◽  
Man-Chung Tang ◽  
Chin-Ho Lee ◽  
Mei-Yee Chan ◽  
...  
Keyword(s):  
Current Efficiency ◽  
High Performance ◽  
High Current ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
White Emission ◽  
Organic Light ◽  
Cie Coordinates ◽  
Organic Light Emitting Devices

WOLEDs based on Au-Y and FIrpic demonstrate high current efficiency with ∼4% efficiency roll-off and white emission with CIE coordinates of (0.33, 0.40).

Highly efficient yellow phosphorescent organic light-emitting diodes with novel phosphine oxide-based bipolar host materials

2015 ◽  
Vol 3 (43) ◽  
pp. 11540-11547 ◽  
Author(s):  
Song Zhang ◽  
Qiu-Lei Xu ◽  
Jing-Cheng Xia ◽  
Yi-Ming Jing ◽  
You-Xuan Zheng ◽  
...  
Keyword(s):  
Phosphine Oxide ◽  
External Quantum Efficiency ◽  
Power Efficiency ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Host Materials ◽  
Maximum Current ◽  
Low Efficiency

Highly efficient yellow OLEDs based on bipolar host materials show a maximum current efficiency of 68.28 cd A−1, a maximum external quantum efficiency of 21.3% and a maximum power efficiency of 50.90 lm W−1 with low efficiency roll-off.

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