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

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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

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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.

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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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