Solvothermal synthesis and characterization of Eu 3+doped Y 2O 3nanocrystals

Murukanahally Kempaiah Devaraju, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    A solvothermal refluxing system containing of ethylene glycol and ethylene glycol-hexane mixed organic solvents were used to prepare Eu 3+ doped Y 2O 3 nanocrystals via solvothermal refluxing reaction-calcinations method. In the presence of ethylene glycol, the reaction temperature required for the preparation of Y(OH) 3 precursor crystal is 170 °C but in ethylene glycol-hexane mixed organic solvents, the synthesis temperature was reduced to 70 °C. The Y(OH) 3 precursor particles were calcinated at 600-1200 °C in air to prepare nanosized Eu 3+ doped Y 2O 3 red phosphor. The as prepared particles by refluxing in ethylene glycol followed by calcination showed 20-60 nm in diameter. For the characterization, XRD, TG-DTA, EDS, FTIR, TEM and PL measurements were employed. The as prepared sample by refluxing in ethylene glycol-hexane mixed solvents exhibited strong red emission around 610 nm under 254 nm xenon light excitation and photoluminescence property was compared with reference sample (5 mol% Eu 3+:Y 2O 3) prepared via conventional co-precipitation method followed by calcinations at 800 °C for 5 h in air.

    Original languageEnglish
    Pages (from-to)731-738
    Number of pages8
    JournalJournal of Nanoscience and Nanotechnology
    Volume10
    Issue number2
    DOIs
    Publication statusPublished - 2010 Feb 1

    Keywords

    • Europium
    • Low Temperature
    • Photoluminescence
    • Solvothermal
    • TEM
    • XRD

    ASJC Scopus subject areas

    • Bioengineering
    • Chemistry(all)
    • Biomedical Engineering
    • Materials Science(all)
    • Condensed Matter Physics

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