Journal
COMMENTS ON INORGANIC CHEMISTRY
Volume 37, Issue 3, Pages 117-145Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02603594.2016.1207064
Keywords
OLEDs; phosphorescent emitters; emission tuning; iridium emitters; molecular engineering
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Funding
- European Commission [H2020-ICT-2014-1, 643791]
- Swiss State Secretariat for Education, Research, and Innovation (SERI)
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Research into phosphorescent Ir(III) complexes has grown immensely since their first report. Talented chemists have successfully synthesized complexes capable of emitting from the ultraviolet to the near-infrared regions of the electromagnetic spectrum. Tuning the emission energy in a selective manner requires knowledge of how ligand substitution affects not only energy levels such as the highest occupied molecular orbital and lowest unoccupied molecular orbital, but also the emissive triplet energy level. This review describes fundamental principles involved in energy-level engineering and substituent selection as well as fundamental methods of device characterization.
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