All-organic Fast Intersystem Crossing Assisted Exciplexes Exhibiting Sub-Microsecond Thermally Activated Delayed Fluorescence

Journal of Materials Chemistry C 2021
Kaspars Traskovskis, Armands Sebris, Irina Novosjolova, Māris Turks, Matas Guzauskas, Dmytro Volyniuk, Oleksandr Bezvikonnyi, Juozas V. Grazulevicius, Anatoly Mishnev, Raitis Grzibovskis, Aivars Vembris

A novel strategy is presented towards acquisition of exciplex systems exhibiting thermally activated delayed fluorescence (TADF) with a high reverse intersystem crossing (RISC) rate (exceeding 107 s−1). This approach involves constructing exciplex donor–acceptor molecular pairs, where the acceptor molecule possesses the ability to undergo fast and efficient intersystem crossing (ISC). With the use of 6-cyano-9-phenylpurine (PCP) acceptor and carbazole-based donor molecules, exciplexes were obtained, where the excitation is contained on PCP and undergoes fast ISC to form a local excited triplet state (3LEA).

DOI
10.1039/D0TC05099G
Hipersaite
https://pubs.rsc.org/en/content/articlelanding/2021/TC/D0TC05099G#!divAbstract

Traskovskis, K., Sebris, A., Novosjolova, I., Turks, M., Guzauskas, M., Volyniuk, D., Bezvikonnyi, O., Grazulevicius, J., Mishnev, A., Grzibovskis, R., Vembris, A. All-organic Fast Intersystem Crossing Assisted Exciplexes Exhibiting Sub-Microsecond Thermally Activated Delayed Fluorescence. Journal of Materials Chemistry C, 2021, Vol. 9, 4532.-4543.lpp. ISSN 2050-7526. e-ISSN 2050-7534. Pieejams: doi:10.1039/D0TC05099G

Publikācijas valoda
English (en)