Abstract
A donor–π–acceptor (D–π–A)-type pull–push compound, DMB-TT-TPA (8), comprising triphenylamine as donor and dimesitylboron as acceptor linked through a thieno[3,2-b]thiophene (TT) π-conjugated linker bearing a 4-MeOPh group, was designed, synthesized, and fabricated as an emitter via a solution process for an organic light-emitting diode (OLED) application. DMB-TT-TPA (8) exhibited absorption and emission maxima of 411 and 520 nm, respectively, with a mega Stokes shift of 109 nm and fluorescence quantum yields both in the solid state (41%) and in solution (86%). The optical properties were supported by computational chemistry using density functional theory for optimized geometry and absorption. A solution-processed OLED was fabricated using low turn-on voltage, which had performances with maximum power, current, and external quantum efficiencies of 6.70 lm/W, 10.6 cd/A, and 4.61%, respectively.
Original language | English |
---|---|
Pages (from-to) | 1849-1857 |
Number of pages | 9 |
Journal | Beilstein Journal of Organic Chemistry |
Volume | 19 |
DOIs | |
Publication status | Published - 2023 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2023 Isci and Ozturk.
Funding
The authors thank THD-2023-44904, PTA-2023-44900, TGA-2023-44077, TDA-2022-43696 numbered ITU BAP Projects and 122Z568 numbered TUBITAK 1001 Project and Unsped Global Lojistik, Turkey, for financial support. We also thank Higher Education Council of Turkey (YOK) and TUBITAK grants to Recep Isci (PhD, 100/2000 YOK, 2214A and 2211A BIDEP/TUBITAK) for financial support.
Funders | Funder number |
---|---|
Higher Education Council of Turkey | |
YOK | 2211A BIDEP/TUBITAK, 2214A |
Keywords
- OLED
- organoboron
- solution processes
- thienothiophene
- triphenylamine