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Atomic/molecular layer deposition of europium-organic thin films on nanoplasmonic structures towards FRET-based applications
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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6
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Nanoscale, Volume 15, issue 38, pp. 15865-15870
Abstract
We present a novel atomic/molecular layer deposition (ALD/MLD) process for europium-organic thin films based on Eu(thd)3 and 2-hydroxyquinoline-4-carboxylic acid (HQA) precursors. The process yields with appreciably high growth rate luminescent Eu-HQA thin films in which the organic HQA component acts as a sensitizer for the red Eu3+ luminescence, extending the excitation wavelength range up to ca. 400 nm. We moreover deposit these films on nanoplasmonic structures to achieve a twentyfold enhanced emission intensity. Finally, we demonstrate the FRET-type energy transfer process for our Eu-HQA coated nanoplasmonic structures in combination with commercial Alexa647 fluorophor, underlining their potential towards novel bioimaging applications.
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| 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 UniEnMLD (no. 101097815). We also acknowledge the use of the RawMatTERS Finland Infrastructure (RAMI) at Aalto University. A. G. acknowledges Jenny & Antti Wihuri Foundation for financial support. Publisher Copyright: © 2023 The Royal Society of Chemistry.
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Ghazy, A, Ylönen, J, Subramaniyam, N & Karppinen, M 2023, 'Atomic/molecular layer deposition of europium-organic thin films on nanoplasmonic structures towards FRET-based applications', Nanoscale, vol. 15, no. 38, pp. 15865-15870. https://doi.org/10.1039/d3nr04094a