Controlling Phosphorescence Color and Quantum Yields in Cationic Iridium Complexes:  A Combined Experimental and Theoretical Study

2007 ◽  
Vol 46 (15) ◽  
pp. 5989-6001 ◽  
Author(s):  
Filippo De Angelis ◽  
Simona Fantacci ◽  
Nicholas Evans ◽  
Cedric Klein ◽  
Shaik M. Zakeeruddin ◽  
...  
Keyword(s):  
Theoretical Study ◽  
Quantum Yields ◽  
Iridium Complexes

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.

Phosphorescent Binuclear Iridium Complexes Based on Terpyridine–Carboxylate: An Experimental and Theoretical Study

2011 ◽  
Vol 50 (17) ◽  
pp. 8197-8206 ◽  
Author(s):  
Eugen S. Andreiadis ◽  
Daniel Imbert ◽  
Jacques Pécaut ◽  
Adrian Calborean ◽  
Ilaria Ciofini ◽  
...  
Keyword(s):  
Theoretical Study ◽  
Iridium Complexes

A theoretical study on the mechanistic highlights behind the Brønsted-acid dependent mer–fac isomerization of homoleptic carbenic iridium complexes for PhOLEDs

2017 ◽  
Vol 46 (22) ◽  
pp. 7194-7209 ◽  
Author(s):  
Tobias Setzer ◽  
Christian Lennartz ◽  
Andreas Dreuw
Keyword(s):  
Theoretical Study ◽  
Isomerization Reaction ◽  
Iridium Complexes ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid

The strongly acid-dependent mer–fac isomerization reaction of homoleptic carbenic iridium complexes used in PhOLEDs has been investigated quantum chemically.

scholarly journals Fluorescent perylenylpyridine complexes: an experimental and theoretical study

2020 ◽  
Vol 49 (38) ◽  
pp. 13326-13338
Author(s):  
J. Emilio Expósito ◽  
Gabriel Aullón ◽  
Manuel Bardají ◽  
Jesús A. Miguel ◽  
Pablo Espinet
Keyword(s):  
Oxidation State ◽  
Theoretical Study ◽  
Quantum Yields ◽  
Auxiliary Ligand ◽  
Cyclometallated Complexes

Perylenylpyridine cyclometallated complexes exhibit fluorescence with quantum yields from 1.1 to 47% depending on the metal, the oxidation state, the auxiliary ligand and the size of the metallacycle (five or six).

Complicated Electronic Process of C–C σ-Bond Activation of Cyclopropene by Ruthenium and Iridium Complexes: Theoretical Study

2012 ◽  
Vol 31 (23) ◽  
pp. 8189-8199 ◽  
Author(s):  
Atsushi Ishikawa ◽  
Yudai Tanimura ◽  
Yoshihide Nakao ◽  
Hirofumi Sato ◽  
Shigeyoshi Sakaki
Keyword(s):  
Bond Activation ◽  
Theoretical Study ◽  
Iridium Complexes ◽  
Electronic Process

scholarly journals Improved Deep-Red Phosphorescence in Cyclometalated Iridium Complexes via Ancillary Ligand Modification

2019 ◽  
Author(s):  
Evanta Kabir ◽  
Steven Sittel ◽  
Boi-Lien Nguyen ◽  
Thomas Teets
Keyword(s):  
Rate Constant ◽  
Quantum Yields ◽  
Iridium Complexes ◽  
Ancillary Ligand ◽  
Ancillary Ligands ◽  
X Ray ◽  
X Ray Crystallography ◽  
Ligand Modification ◽  
Radiative Rate ◽  
Red Luminescence

In this work, we describe bis-cyclometalated iridium complexes with efficient deep-red luminescence. Two different cyclometalating (C^N) ligands‒1-phenylisoquinoline (piq) and 2-(2- pyridyl)benzothiophene (btp)‒are used with six strong π-donating ancillary ligands (L^X) to furnish a suite of 10 new complexes with the general formula Ir(C^N)2(L^X). Improvements in deep-red photoluminescence quantum yields were accomplished by the incorporation of sterically encumbering substituents onto the ancillary ligand, which can enhance the radiative rate constant (kr) and/or reduce the non-radiative rate constant (knr). Five of the complexes were characterized by X-ray crystallography, and all of them were investigated by in-depth spectroscopic and electrochemical measurements.<br>

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