Excitation Wavelength Engineering through Organic Linker Choice in Luminescent Atomic/Molecular Layer Deposited Lanthanide-Organic Thin Films

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2023-08-08
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Language
en
Pages
5988–5995
Series
Chemistry of Materials, Volume 35, issue 15
Abstract
We demonstrate multiple roles for the organic linker in luminescent lanthanide-organic thin films grown with the strongly emerging atomic/molecular layer deposition technique. Besides rendering the hybrid thin film mechanically flexible and keeping the lanthanide nodes at a distance adequate to avoid concentration quenching, the organic moieties can act as efficient sensitizers for the lanthanide luminescence. We investigate six different aromatic organic precursors in combination with Eu3+ ions to reveal that by introducing different nitrogen species within the aromatic ring, it is possible to extend the excitation wavelength area from the UV range to the visible range. This opens new horizons for the application space of these efficiently photoluminescent thin-film materials.
Description
| openaire: EC/HE/101097815/EU//UniEn-MLD Funding Information: Funding was received through the Academy of Finland (PREIN Flagship) and the European Research Council (H2020) AdG “Unique ALD/MLD-enabled material functions” (no. 101097815). We also acknowledge the use of the RawMatTERS Finland Infrastructure (RAMI) at Aalto University. Amr Ghazy acknowledges the Jenny and Antti Wihuri Foundation for financial support. Publisher Copyright: © 2023 The Authors. Published by American Chemical Society.
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Citation
Ghazy, A, Lastusaari, M & Karppinen, M 2023, ' Excitation Wavelength Engineering through Organic Linker Choice in Luminescent Atomic/Molecular Layer Deposited Lanthanide-Organic Thin Films ', Chemistry of Materials, vol. 35, no. 15, pp. 5988–5995 . https://doi.org/10.1021/acs.chemmater.3c00955