,
,
,
and
Beilstein Arch. 2023, 202326. https://doi.org/10.3762/bxiv.2023.26.v1
Published 28 Jun 2023
Organic thermally activated delayed fluorescence materials (TADF) have been widely investigated due to their impressive electronic properties and applied potential for the third generation of organic light-emitting diodes (OLED). We present organic TADF material based on the strained benzoguanidine donor (4BGIPN) and compare it with the benchmark carbazole-based material (4CzIPN). Extended π-conjugation in 4BzIPN material results in yellow luminescence at 525 nm with a fast radiative rate of 1.15x10-6 s-1 and photoluminescence quantum yield of 46% in methylcyclohexane solution. Such a nitrogen-rich 4BGIPN material has a significantly stabilized highest occupied molecular orbital (HOMO) at –6.4 eV while the lowest unoccupied molecular orbital (LUMO) at -4.0 eV, indicating potential suitability for application as the electron transport layer or TADF class III emitter in OLEDs.
Keywords: Organic; TADF; yellow; guanidine; photoluminescence
When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:
Brannan, A. C.; Beaumont, E. F. P.; Phuoc, N. L.; Whitehead, G. F. S.; Linnolahti, M.; Romanov, A. S. Beilstein Arch. 2023, 202326. doi:10.3762/bxiv.2023.26.v1
Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and
Zotero.
© 2023 Brannan et al.; licensee Beilstein-Institut.
This is an open access work licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-archives.org/xiv/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this work could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material.
