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- Title
New Unsymmetrically Substituted Benzothiadiazole-Based Luminophores: Synthesis, Optical, Electrochemical Studies, Charge Transport, and Electroluminescent Characteristics.
- Authors
Gribanov, Pavel S.; Loginov, Dmitry A.; Lypenko, Dmitry A.; Dmitriev, Artem V.; Pozin, Sergey I.; Aleksandrov, Alexey E.; Tameev, Alexey R.; Martynov, Igor L.; Chernyadyev, Andrey Yu.; Osipov, Sergey N.
- Abstract
Three new benzothiadiazole (BTD)-containing luminophores with different configurations of aryl linkers have been prepared via Pd-catalyzed cross-coupling Suzuki and Buchwald–Hartwig reactions. Photophysical and electroluminescent properties of the compounds were investigated to estimate their potential for optoelectronic applications. All synthesized structures have sufficiently high quantum yields in film. The BTD with aryl bridged carbazole unit demonstrated the highest electrons and holes mobility in a series. OLED with light-emitting layer (EML) based on this compound exhibited the highest brightness, as well as current and luminous efficiency. The synthesized compounds are not only luminophores with a high photoluminescence quantum yield, but also active transport centers for charge carriers in EML of OLED devices.
- Subjects
LUMINOPHORES; ELECTRON mobility; SUZUKI reaction; HOLE mobility; CHEMICAL synthesis; CARBAZOLE
- Publication
Molecules, 2021, Vol 26, Issue 24, p7596
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules26247596