ALD/MLD fabrication of luminescent Eu-organic hybrid thin films using different aromatic carboxylic acid components with N and O donors

Z. Giedraityte, L. S. Johansson, M. Karppinen*

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    9 Citations (Scopus)
    242 Downloads (Pure)

    Abstract

    Atomic/molecular layer deposition (ALD/MLD) processes based on Eu(thd)3 and three different aromatic organic acids with O and N donors as precursors are systematically investigated for the growth of Eu-based inorganic-organic thin-film phosphors. For all the acid precursors evaluated, i.e. 1,4-dicarboxylic, 3,5-pyridinedicarboxylic and 2,6-pyridinedicarboxylic acids, conditions are found to produce high-quality hybrid thin films through self-saturating gas-solid reactions as expected for an ideal ALD/MLD process. The resultant Eu-organic thin films show intense red photoluminescence. The luminescence characteristics depend on the manner the organic ligands are bound to Eu3+; this is discussed based on FTIR, XPS, UV-vis and fluorescence spectroscopy data measured for the films.

    Original languageEnglish
    Pages (from-to)103412-103417
    Number of pages6
    JournalRSC Advances
    Volume6
    Issue number105
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

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