scholarly journals Blue-phosphorescent bis-cyclometalated iridium complexes with aryl isocyanide ancillary ligands

Polyhedron ◽  
2020 ◽  
Vol 178 ◽  
pp. 114332 ◽  
Author(s):  
Louise M. Cañada ◽  
Johanna Kölling ◽  
Thomas S. Teets
Keyword(s):  
Iridium Complexes ◽  
Ancillary Ligands ◽  
Blue Phosphorescent

New blue phosphorescent iridium complexes for OLEDs

2012 ◽  
Vol 20 (1) ◽  
pp. 70 ◽  
Author(s):  
Michelle Groarke ◽  
Sven Andresen ◽  
Jenny O'Connell ◽  
Tadahiko Hirai ◽  
Karl Weber ◽  
...  
Keyword(s):  
Iridium Complexes ◽  
Blue Phosphorescent

Cationic Iridium Dendrimers: Synthesis and Photophysical Properties

2011 ◽  
Vol 64 (9) ◽  
pp. 1211 ◽  
Author(s):  
Bin Du ◽  
Si-Chun Yuan ◽  
Jian Pei
Keyword(s):  
Solid State ◽  
Photophysical Properties ◽  
Dendritic Structure ◽  
Benzimidazole Derivatives ◽  
Iridium Complex ◽  
Iridium Complexes ◽  
Efficient Energy Transfer ◽  
Ancillary Ligands ◽  
Synthetic Strategy ◽  
Yellow Orange

Two dendrimers, D1 and D2, containing the cationic iridium complexes (C1 and C2) as cores and truxene-functionalized chromophores as the branches, have been developed by a convergent synthetic strategy. The cationic complexes employ 3-(pyridin-2-yl)-1H-1,2,4-triazole and 2-(pyridin-2-yl)-benzimidazole derivatives as the ancillary ligands. To avoid the change in emission colour arising from the iridium complex, the conjugation between the dendron and the ligand is decoupled by separating them using the alkyl chain. An investigation of their photoluminescent features reveals that efficient energy transfer happens from the dendrons to the core in the solid state. Likewise, the charged dendritic structure is demonstrated to be an efficient method to improve the compatibility between the polar charged iridium complexes and typical hydrophobic hosts with the additional benefit of excellent solution processability. Both dendrimers exhibit strong solvatochromic behaviours in solvents and exclusive green and yellow-orange light in the solid state.

Highly efficient blue phosphorescent iridium(iii) complexes with various ancillary ligands for partially solution-processed organic light-emitting diodes

2017 ◽  
Vol 5 (36) ◽  
pp. 9306-9314 ◽  
Author(s):  
Peng Tao ◽  
Yuanbing Zhang ◽  
Jiong Wang ◽  
Liuwei Wei ◽  
Hongxin Li ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Ancillary Ligands ◽  
Light Emitting ◽  
Chemical Structures ◽  
Highly Efficient ◽  
Organic Light ◽  
Blue Phosphorescent

Excellent blue/pure blue iridium(iii) phosphors with high ΦPL, narrow FWHMs and robust chemical structures are designed for partially solution-processed OLEDs.

Cationic Iridium Complexes with Phenylpyridine and Strong Ancillary Ligands

2010 ◽  
Vol 520 (1) ◽  
pp. 108/[384]-115/[391]
Author(s):  
Ho Wan Ham ◽  
Young Sik Kim
Keyword(s):  
Iridium Complexes ◽  
Ancillary Ligands

Enhancing the electronic properties and quantum efficiency of sulfonyl/phosphoryl-substituted blue iridium complexes via different ancillary ligands

2015 ◽  
Vol 39 (5) ◽  
pp. 4147-4153 ◽  
Author(s):  
Yanling Si ◽  
Shuai Zhang ◽  
Nan Qu ◽  
Guoyou Luan ◽  
Zhijian Wu
Keyword(s):  
Electronic Properties ◽  
Quantum Efficiency ◽  
Electronic Structures ◽  
Energy Gap ◽  
Emission Spectra ◽  
Iridium Complexes ◽  
Ancillary Ligands ◽  
Absorption And Emission ◽  
Absorption And Emission Spectra

The influence of the ancillary ligands for iridium complexes on the electronic structures, absorption and emission spectra, and quantum efficiency was investigated. The results reveal that they not only tune the energy gap but also enhance the quantum efficiency.

Efficient near-infrared luminescence from bis-cyclometalated iridium(iii) complexes with rigid quinoline-derived ancillary ligands

2020 ◽  
Vol 56 (62) ◽  
pp. 8754-8757
Author(s):  
Po-Ni Lai ◽  
Sungwon Yoon ◽  
Thomas S. Teets
Keyword(s):  
Near Infrared ◽  
High Efficiency ◽  
Infrared Region ◽  
Iridium Complexes ◽  
Ancillary Ligands ◽  
Infrared Luminescence ◽  
Near Infrared Region

Rigid bis-cyclometalated iridium complexes with quinoline-based chelating ancillary ligands phosphoresce in the near-infrared region with high efficiency.

Highly Phosphorescent Iridium Complexes with Chromophoric 2-(2-Hydroxyphenyl)oxazole-Based Ancillary Ligands: Interligand Energy-Harvesting Phosphorescence

2008 ◽  
Vol 47 (5) ◽  
pp. 1476-1487 ◽  
Author(s):  
Youngmin You ◽  
Jangwon Seo ◽  
Se Hun Kim ◽  
Kil Suk Kim ◽  
Tae Kyu Ahn ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Iridium Complexes ◽  
Ancillary Ligands

Wide bandgap iridium complexes varying by their ancillary ligands: Influence on their electroluminescence properties

2015 ◽  
Vol 204 ◽  
pp. 48-56 ◽  
Author(s):  
Marc Lepeltier ◽  
Pu Xiao ◽  
Bernadette Graff ◽  
Fabrice Morlet-Savary ◽  
Didier Gigmes ◽  
...  
Keyword(s):  
Wide Bandgap ◽  
Iridium Complexes ◽  
Ancillary Ligands
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