| Title |
Impact of tertiary amino linkages on the properties of electroactive phenothiazinyl-based compounds / |
| Authors |
Lekavičius, Domantas ; Keruckienė, Rasa ; Gužauskas, Matas ; Gražulevičius, Juozas V |
| DOI |
10.15388/Proceedings.2024.46 |
| ISBN |
9786090710517 |
| Full Text |
|
| Is Part of |
Open readings 2024: the 67th international conference for students of physics and natural sciences: book of abstracts / editors: M. Keršys, R. Naina, V. Adomaitis, E. Maskvytis.. Vilnius : Vilnius University press, 2024. p. 274.. ISBN 9786090710517 |
| Abstract [eng] |
Organic light-emitting diode (OLED) technology has made significant advances in performance and becoming widely used in smartphone displays [1]. Self-emitting ability, transparency, true dark tone, and capability of being made flexible are some of the features of OLED displays, leading to a superior performance compared with liquid crystal displays. In addition to displays, OLEDs are also a strong candidate for lighting applications [2]. In this work, the effects of introducing tertiary amino linkages to phenothiazine derivatives, which act as delayed emission fluorophores, will be presented. The said compounds consist of either a pyridine- or benzonitrile moiety as an acceptor and phenothiazine as a donor. The compounds were synthesized by Buchwald-Hartwig cross-coupling reaction. The resulting electroactive compounds are thermally stable with 10 percent weight loss temperatures of 270 and 308 oC. Repeated scans of cyclic voltammetry showed that both compounds exhibit reversible oxidation. The emission type of the pyridine-containing phenothiazine derivative was found to be triplet-triplet annihilation, and the benzonitrile-containing derivative exhibited room-temperature phosphorescence. Further investigation in the benzonitrile-containing species showed perfect reversible oxygen sensing and fast oxygen response. This suggests that the compound shows promise as an analyte for oxygen sensing. |
| Published |
Vilnius : Vilnius University press, 2024 |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2024 |
| CC license |
|
