Solution-processable green phosphorescent iridium(III) complexes bearing 3,3,3-triphenylpropionic acid fragment for use in OLEDs

Kaspars Traskovskis; Aivars Vembris; Valdis Kokars

doi:10.1117/12.2306806

21 May 2018 Solution-processable green phosphorescent iridium(III) complexes bearing 3,3,3-triphenylpropionic acid fragment for use in OLEDs

Kaspars Traskovskis, Aivars Vembris, Valdis Kokars

Author Affiliations +

Proceedings Volume 10687, Organic Electronics and Photonics: Fundamentals and Devices; 1068715 (2018) https://doi.org/10.1117/12.2306806
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

New solution-processable materials based on well-known green iridium(III) heteroleptic complexes (ppy)₂Ir(acac) and (ppy)₂Ir(pic) were acquired by chemical modification of ppy ligand with functionable hydroxyl groups and subsequent esterification with 3,3,3-triphenylpropionic acid fragment. Photoluminescence quantum efficiencies up to 0.90 were measured for the compounds in solution. Emission characteristics in pure solid films and different guest-host systems with hole transporting materials were investigated. Green light emitting OLEDs (organic light emitting devices) was prepared and characterized.

Citation Download Citation

Kaspars Traskovskis, Aivars Vembris, and Valdis Kokars "Solution-processable green phosphorescent iridium(III) complexes bearing 3,3,3-triphenylpropionic acid fragment for use in OLEDs", Proc. SPIE 10687, Organic Electronics and Photonics: Fundamentals and Devices, 1068715 (21 May 2018); https://doi.org/10.1117/12.2306806

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