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.

Highly Efficient Phosphorescent Organic Light-Emitting Diodes Based on Novel Bipolar Iridium Complexes with Easily-Tuned Emission Colors by Adjusting Fluorine Substitution on Phenylpyridine Ligands

2021 ◽  
Author(s):  
Shuonan Chen ◽  
Xi Gai ◽  
Jie Liang ◽  
Kaiqi Ye ◽  
Yu Liu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Iridium Complexes ◽  
Fluorine Substitution ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

Two new phenylpyridine derivatives-based heteroleptic iridium complexes, (Fppy)2Ir(dipg) (Fppdg) and (CF3ppy)2Ir(dipg) (tFmppdg) with emission peaks of 545 nm and 581 nm respectively, were designed and synthesized by incorporation of a...

Deep-red iridium(iii) complexes cyclometalated by phenanthridine derivatives for highly efficient solution-processed organic light-emitting diodes

2016 ◽  
Vol 4 (16) ◽  
pp. 3492-3498 ◽  
Author(s):  
Bei Jiang ◽  
Yu Gu ◽  
Jingjing Qin ◽  
Xiaowen Ning ◽  
Shaolong Gong ◽  
...  
Keyword(s):  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Simple Approach ◽  
Emission Peak ◽  
Organic Light Emitting Diodes ◽  
Iridium Complexes ◽  
Solution Processed ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

The introduction of 4-tert-butyl-N-phenylaniline groups into phenanthridine derivatives is demonstrated as a simple approach to develop solution-processed deep-red iridium complexes. The resulting PhOLEDs achieve a maximum EQE of 5.2% with the emission peak at 682 nm.

Fluorine-free, highly efficient, blue-green and sky-blue-emitting cationic iridium complexes and their use for efficient organic light-emitting diodes

2018 ◽  
Vol 6 (6) ◽  
pp. 1509-1520 ◽  
Author(s):  
Lei He ◽  
Ying Lan ◽  
Dongxin Ma ◽  
Xiangzhi Song ◽  
Lian Duan
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Iridium Complexes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

Fluorine-free, highly efficient, blue-green and sky-blue-emitting cationic iridium complexes were developed, which showed high performances in organic light-emitting diodes.

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.

scholarly journals Highly efficient non-doped blue organic light emitting diodes based on a D–π–A chromophore with different donor moieties

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13604-13614 ◽  
Author(s):  
Venugopal Thanikachalam ◽  
Palanivel Jeeva ◽  
Jayaraman Jayabharathi
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Blue Emission ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Maximum Current

The non-doped OLED based on MPPIS-Cz exhibits blue emission with CIE of (0.16, 0.08), maximum current and external quantum efficiency of 1.52 cd A−1 and of 1.42%, respectively.

Coumarin-Based, Electron-Trapping Iridium Complexes as Highly Efficient and Stable Phosphorescent Emitters for Organic Light-Emitting Diodes

2010 ◽  
Vol 49 (4) ◽  
pp. 1301-1303 ◽  
Author(s):  
Xiaofan Ren ◽  
Marina E. Kondakova ◽  
David J. Giesen ◽  
Manju Rajeswaran ◽  
Marcel Madaras ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Electron Trapping ◽  
Iridium Complexes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

Highly efficient chlorine functionalized blue iridium(iii) phosphors for blue and white phosphorescent organic light-emitting diodes with the external quantum efficiency exceeding 20%

2018 ◽  
Vol 6 (25) ◽  
pp. 6656-6665 ◽  
Author(s):  
Yanqin Miao ◽  
Peng Tao ◽  
Long Gao ◽  
Xiangling Li ◽  
Liuwei Wei ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
White Oleds

Chlorine functionalized blue iridium(iii) phosphors (Ir1–Ir4) are designed for blue and white OLEDs with maximum EQEs of over 20%.

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