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Luminescent properties of YVO4: Eu3+ phosphor by using hydrothermal synthesis

Authors
Moon, Y.-M.Choi, S.Jung, H.-K.Lim, S.H.
Issue Date
2008
Keywords
Hydrothermal synthesis; Photoluminescence; Yttrium vanadates
Citation
Korean Journal of Materials Research, v.18, no.10, pp.511 - 514
Indexed
SCOPUS
KCI
Journal Title
Korean Journal of Materials Research
Volume
18
Number
10
Start Page
511
End Page
514
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/125359
DOI
10.3740/MRSK.2008.18.10.511
ISSN
1225-0562
Abstract
We have synthesized Eu3+-doped YVO4 phosphors by using a hydrothermal method and investigated their luminescent properties. Aqueous solutions of Y2O3, V2O5, Eu2O3, and nitric acid with various pH values were used as the precursors. The crystallinity, surface condition, and emission characteristics were examined using XRD, FT-IR, and photo-excited spectrometer. Eu3+ incorporation followed by the efficient red emission strongly depends on the acidity of solution media. The emission intensity becomes stronger as the pH values increase to 7 and then gradually decreases. This phenomenon might be related to the hydroxyl quenching effect, which is induced by surface bound OH- groups.
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공과대학 (신소재공학부)
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