Efficient OLEDs with low efficiency roll-off using iridium complexes possessing good electron mobility

2015 ◽  
Vol 3 (15) ◽  
pp. 3694-3701 ◽  
Author(s):  
Qiu-Lei Xu ◽  
Xiao Liang ◽  
Song Zhang ◽  
Yi-Ming Jing ◽  
Xuan Liu ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Electron Mobility ◽  
Iridium Complexes ◽  
Highly Efficient ◽  
Low Efficiency

Two iridium(iii) complexes with high photoluminescence quantum efficiency and electron mobility were synthesized and highly efficient OLEDs (ηc,max of 101.96 cd A−1 and ηEQE,max of 31.6% for Ir1; ηc,max of 99.97 cd A−1 and ηEQE,max of 30.5% for Ir2) were fabricated with low efficiency roll-off ratios.

Highly efficient yellow electroluminescence of iridium complexes with good electron mobility

2018 ◽  
Vol 2 (7) ◽  
pp. 1284-1290 ◽  
Author(s):  
Hua-Bo Han ◽  
Xiao-Feng Ma ◽  
Zheng-Guang Wu ◽  
You-Xuan Zheng
Keyword(s):  
Current Efficiency ◽  
Quantum Efficiency ◽  
Electron Mobility ◽  
External Quantum Efficiency ◽  
Iridium Complexes ◽  
Highly Efficient ◽  
Maximum Current ◽  
Low Efficiency

Herein, two efficient yellow iridium complexes with good electron mobility were applied in OLEDs, showing a maximum current efficiency of 106.66 cd A−1 and an external quantum efficiency of 29.7% with low efficiency roll-off.

Highly efficient orange-red electroluminescence of iridium complexes with good electron mobility

2017 ◽  
Vol 5 (32) ◽  
pp. 8150-8159 ◽  
Author(s):  
Hua-Bo Han ◽  
Rong-Zhen Cui ◽  
Yi-Ming Jing ◽  
Guang-Zhao Lu ◽  
You-Xuan Zheng ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Electron Mobility ◽  
Quantum Yields ◽  
Iridium Complexes ◽  
Maximum Luminance ◽  
High Quantum ◽  
Highly Efficient ◽  
Maximum Current ◽  
Low Efficiency

Two orange-red iridium complexes with high quantum yields and good electron mobility were applied in efficient OLEDs showing a maximum luminance of 129 466 cd m−2, a maximum current efficiency of 62.96 cd A−1 with low efficiency roll-off.

Efficient bluish green electroluminescence of iridium complexes with good electron mobility

2018 ◽  
Vol 42 (16) ◽  
pp. 13351-13357 ◽  
Author(s):  
Hua-Bo Han ◽  
Zheng-Guang Wu ◽  
You-Xuan Zheng
Keyword(s):  
Current Efficiency ◽  
Quantum Efficiency ◽  
Electron Mobility ◽  
External Quantum Efficiency ◽  
Iridium Complexes ◽  
Bluish Green ◽  
Maximum Current

Two efficient bluish green iridium complexes with good electron mobility were applied in efficient OLEDs, showing a maximum current efficiency of 71.18 cd A−1 and a maximum external quantum efficiency of 27.7%.

Sky-blue iridium complexes with pyrimidine ligands for highly efficient phosphorescent organic light-emitting diodes

2020 ◽  
Vol 44 (21) ◽  
pp. 8743-8750
Author(s):  
Haiyang Ma ◽  
Di Liu ◽  
Jiuyan Li ◽  
Yongqiang Mei ◽  
Deli Li ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Iridium Complexes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Cie Coordinates ◽  
Maximum Quantum Efficiency

Three sky blue heteroleptic Ir(III) complexes with emission peaks at 457–459 nm, have been developed. A maximum quantum efficiency of 21.23% with CIE coordinates of (0.15, 0.26) is realized in their PhOLEDs, representing a higher efficiencies and improved color purities than FIrpic.

Efficient red phosphorescent Ir(iii) complexes based on rigid ligands with high external quantum efficiency and low efficiency roll-off

2020 ◽  
Vol 8 (18) ◽  
pp. 6168-6175 ◽  
Author(s):  
Sheng-Nan Liu ◽  
Kai-Ning Tong ◽  
Yue Zhao ◽  
Jin-Feng Cheng ◽  
Man-Keung Fung ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Highly Efficient ◽  
Low Efficiency

Two highly efficient red phosphorescent Ir(iii) complexes were prepared by the introduction of rigid cyclometalating ligands.

Efficient green photoluminescence and electroluminescence of iridium complexes with high electron mobility

2018 ◽  
Vol 47 (46) ◽  
pp. 16543-16550 ◽  
Author(s):  
Hua-Bo Han ◽  
Zheng-Guang Wu ◽  
Zhi-Ping Yan ◽  
Yue Zhao ◽  
You-Xuan Zheng
Keyword(s):  
Current Efficiency ◽  
Quantum Efficiency ◽  
Electron Mobility ◽  
External Quantum Efficiency ◽  
High Electron ◽  
Iridium Complexes ◽  
High Electron Mobility ◽  
Maximum Current ◽  
Green Photoluminescence

Two green iridium complexes with high photoluminescence quantum efficiency were applied in OLEDs showing a maximum current efficiency of 92.76 cd A−1 and a maximum external quantum efficiency of 31.8%, and the efficiency roll-off ratio is low.

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)...

Lead chlorine cluster assembled one-dimensional halide with highly efficient broadband white-light emission

2021 ◽  
Author(s):  
Jian-Qiang Zhao ◽  
Chen Sun ◽  
Meng Yue ◽  
Yan Meng ◽  
Xian-Mei Zhao ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
One Dimensional ◽  
Highly Efficient

One new lead chlorine cluster assembled 1D non-perovskite halide of [DTHPE]2Pb3Cl10 was synthesized which displays strong broadband bluish white light emission with a high photoluminescence quantum efficiency of 19.45% exceeding those of previously reported 2D lead perovskites.

Internal quantum efficiency of highly-efficient InxGa1−xN-based near-ultraviolet light-emitting diodes

2003 ◽  
Vol 83 (24) ◽  
pp. 4906-4908 ◽  
Author(s):  
Satoshi Watanabe ◽  
Norihide Yamada ◽  
Masakazu Nagashima ◽  
Yusuke Ueki ◽  
Chiharu Sasaki ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Internal Quantum Efficiency ◽  
Light Emitting ◽  
Highly Efficient ◽  
Near Ultraviolet ◽  
Ultraviolet Light Emitting Diodes
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