Solution-Processable Green Phosphorescent Iridium(III) Complexes Bearing 3,3,3- Triphenylpropionic Acid Fragment for Use in OLEDs

Proceedings of SPIE 2018
Kaspars Traskovskis, Aivars Vembris, Valdis Kokars

New solution-processable materials based on well-known green iridium(III) heteroleptic complexes (ppy) 2 Ir(acac) and (ppy) 2 Ir(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.

Keywords
OLED, solution-processing, iridium complex, phosphorescence, molecular glasses
DOI
10.1117/12.2306806
Hyperlink
http://spie.org/Publications/Proceedings/Paper/10.1117/12.2306806

Traskovskis, K., Vembris, A., Kokars, V. Solution-Processable Green Phosphorescent Iridium(III) Complexes Bearing 3,3,3- Triphenylpropionic Acid Fragment for Use in OLEDs. Proceedings of SPIE, 2018, Vol. 10687, pp.1-8. ISSN 0277-786X. e-ISSN 1996-756X. Available from: doi:10.1117/12.2306806

Publication language
English (en)