Abstract

Intrinsic characteristics possessed and exhibited by Ir(III) cyclometalated complexes need to be further examined, understood, and explored for greater value enhancement and potentiation. This work focuses primarily on the comparative studies of the ligand structures, types, and their substituent influence on the photophysical and optoelectronic properties of typical cyclometalated mono- and binuclear iridium(III) complexes in solution or solid states.

Highlights

  • The increasing demand for light and other light applications cannot be overemphasized by today’s usage worldwide [1]

  • Baldo et al [66,67] reported the active area of research in organic light emitting diodes (OLEDs) where complex was doped with dicarbazole biphenyl moiety to obtain complex (Scheme 8)

  • This work has examined some mono- and binuclear Ir(III) cyclometalated complexes in relation to their photophysical and optoelectronic properties, which were found to be greatly influenced by to their photophysical and optoelectronic properties, which were found to be greatly influenced by anionic, cationic, or neutral ligand types

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Summary

Introduction

The increasing demand for light and other light applications cannot be overemphasized by today’s usage worldwide [1]. Other types of technology applications, such as those involving organic light emitting diodes (OLEDs) and organic field-effect transistors (OFETs) as one of the most populous electroluminescent devices, are usually fabricated using either organic and inorganic compounds or bilayer structures to obtain excellent semiconductors and emitters [13] The development of these efficient and long-wavelength conducting emitters in the construction of next-generation materials for biomedical. To tune the absorption and emission properties of cyclometalating complexes, various strategies have been reported which include extension of π-conjugation bonds of organic molecules, as well as functionalization of the ancillary ligands using electron withdrawing or electron donating groups.

Phosphorescent
Structures
15. Structure
16. Structure of of cationic bearing bisphosphine ligands
Comparative
Findings
Conclusions

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