High-efficiency organic light-emitting diodes of phosphorescent PtAg2heterotrinuclear acetylide complexes supported by triphosphine

2017 ◽  
Vol 5 (12) ◽  
pp. 3072-3078 ◽  
Author(s):  
Yi-Peng Li ◽  
Xin-Xia Fan ◽  
Yue Wu ◽  
Xian-Chong Zeng ◽  
Jin-Yun Wang ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Heterometallic Cluster ◽  
Organic Light ◽  
New Type ◽  
Heterometallic Cluster Complexes

Platinum(ii)–silver(i) heterometallic cluster complexes are used as a new type of phosphorescent dopant to achieve high-efficiency OLEDs with 67.4 cd A−1peak current efficiency (CE) and 17.4% external quantum efficiency (EQE).

Non-halogenated solvent-processed highly efficient green Ir(iii) complexes with an external quantum efficiency exceeding 23% for phosphorescent organic light-emitting diodes

2020 ◽  
Vol 8 (37) ◽  
pp. 12959-12967
Author(s):  
Raja Kumaresan ◽  
Athithan Maheshwaran ◽  
Ho-Yeol Park ◽  
Kyungmin Sung ◽  
Jungmin Choi ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

High efficiency green phosphorescent Ir(III) complexes with solubilizing groups introduced to enable non-halogenated solvent-based fabrication of PHOLEDs with high EQE and CE values.

High-efficiency near-infrared fluorescent organic light-emitting diodes with small efficiency roll-off based on AIE-active phenanthro[9,10-d]imidazole derivatives

2020 ◽  
Vol 8 (20) ◽  
pp. 6883-6890 ◽  
Author(s):  
Futong Liu ◽  
Yongbo Tan ◽  
Hui Liu ◽  
Xiangyang Tang ◽  
Lei Gao ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Near Infrared ◽  
High Efficiency ◽  
Organic Light Emitting Diodes ◽  
Strong Fluorescence ◽  
Light Emitting ◽  
Photoluminescence Quantum Yield ◽  
Organic Light

PIBz-3-PTZ exhibits strong fluorescence with a photoluminescence quantum yield of 35% in films. The nondoped device achieves a maximum external quantum efficiency of 2.02% peaking at 672 nm with small efficiency roll-off.

Two platinum(ii) complexes with a 4-phenyl-4H-1,2,4-triazole derivative as an ancillary ligand for efficient green OLEDs

2019 ◽  
Vol 48 (5) ◽  
pp. 1892-1899 ◽  
Author(s):  
Guang-Zhao Lu ◽  
Zhen-Long Tu ◽  
Liang Liu ◽  
You-Xuan Zheng ◽  
Yue Zhao
Keyword(s):  
Current Efficiency ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Ancillary Ligand ◽  
Triazole Derivative ◽  
Light Emitting ◽  
Organic Light ◽  
Cyclometalated Complexes

Two efficient green platinum(ii) cyclometalated complexes were applied in organic light-emitting diodes showing good performances with a peak current efficiency of 88.50 cd A−1 and a peak external quantum efficiency of 26.90% with mild efficiency roll-off.

scholarly journals Green phosphorescent organic light-emitting diode exhibiting highest external quantum efficiency with ultra-thin undoped emission layer

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shin Woo Kang ◽  
Dong-Hyun Baek ◽  
Byeong-Kwon Ju ◽  
Young Wook Park
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
Systematic Analysis ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

AbstractIn this study, we report highly efficient green phosphorescent organic light-emitting diodes (OLEDs) with ultra-thin emission layers (EMLs). We use tris[2-phenylpyridinato-C2,N]iridium(III) (Ir(ppy)3), a green phosphorescent dopant, for creating the OLEDs. Under systematic analysis, the peak external quantum efficiency (EQE) of an optimized device based on the ultra-thin EML structure is found to be approximately 24%. This result is highest EQE among ultra-thin EML OLEDs and comparable to the highest efficiency achieved by OLEDs using Ir(ppy)3 that are fabricated via conventional doping methods. Moreover, this result shows that OLEDs with ultra-thin EML structures can achieve ultra-high efficiency.

The structure optimization of phenanthroimidazole based isomers with external quantum efficiency approaching 7% in non-doped deep-blue OLEDs

2020 ◽  
Vol 8 (9) ◽  
pp. 2975-2984 ◽  
Author(s):  
Jie-Ji Zhu ◽  
Yuwen Chen ◽  
Yong-Hong Xiao ◽  
Xin Lian ◽  
Guo-Xi Yang ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Structure Optimization ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light

In this work, four phenanthroimidazole (PI) based isomers TPA-PPI-PBI, TPA-PPI-NPBI, PBI-PPI-TPA and NPBI-PPI-TPA for high-efficiency deep-blue organic light-emitting diodes (OLEDs) have been designed and synthesized.

Reduced efficiency roll-off in all-phosphorescent white organic light-emitting diodes with an external quantum efficiency of over 20%

2015 ◽  
Vol 3 (14) ◽  
pp. 3304-3310 ◽  
Author(s):  
Liping Zhu ◽  
Zhongbin Wu ◽  
Jiangshan Chen ◽  
Dongge Ma
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Rational Design ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

A rational design of the emission layers to achieve a high efficiency WOLED with reduced roll-off.

High-efficiency red organic light-emitting diodes based on a double-emissive layer with an external quantum efficiency over 30%

2018 ◽  
Vol 6 (26) ◽  
pp. 7042-7045 ◽  
Author(s):  
Yanping Wang ◽  
Wenjie Wang ◽  
Zhaoji Huang ◽  
Huahang Wang ◽  
Junting Zhao ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Emissive Layer ◽  
Organic Light ◽  
Red Oleds

Red OLEDs (devices D1–D3) with a S-EML and a D-EML have been demonstrated to have different EQEs.

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