@inproceedings{314a65e5d3984d2b9ab34ac8b27d64a0,
title = "TADF active carbene-metal-amide complexes exhibiting through-space charge transfer: an impact of metal atom",
abstract = "The impact of metal atom on the photophysical properties of luminescent organometallic carbene-metal-amide complexes exhibiting through-space charge transfer is investigated. The substitution of copper atom with gold alters the excited state energy level configuration of the emitter. While in the copper-based emitters the lowest triplet excited state (T1) is related to a through-space charge transfer between the carbazolide donor and carbene-bound phenylsulphonyl acceptor, in the gold-bearing structural analogue T1 level is accompanied by an additional closely situated triplet state T2, which features a charge transfer between the carbazolide donor and imidazolidine carbene acceptor. Because of a significant spin-orbit coupling provided by Au atom T2 state exhibits relatively fast phosphorescence rate of 8×104 s-1. Consequently, the emissive process for the gold-functionalized compound can be characterized with a co-occurring thermally activated delayed fluorescence (TADF) and phosphorescence, in contrast to the copper-based structural analogues, where only TADF is observed.",
keywords = "gold complex, N-heterocyclic carbene, phosphorescence, TADF, through-space charge transfer",
author = "Annija Jece and Armands Ruduss and Stucere, \{Kitija A.\} and Aivars Vembris and Kaspars Traskovskis",
note = "Publisher Copyright: {\textcopyright} 2022",
year = "2022",
doi = "10.1117/12.2621156",
language = "English",
isbn = "9781510651746",
volume = "12149",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
editor = "Sebastian Reineke and Koen Vandewal and Wouter Maes",
booktitle = "Organic Electronics and Photonics",
}