Temperature effect on the luminescent emission of hafnium oxide doped with europium ion

Photoluminescent analysis of HfO2 doped with Eu3+, as a function of temperature is reported. Samples were synthesized by hydrothermal method at 200 °C of temperature and 120 minutes of reaction time, using chlorides as raw materials. The HfO2 was doped with trivalent europium ions (Eu3+) at concentr...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-06, Vol.1221 (1), p.12003
Main Authors: López Esquivel, R I, Guzmán Mendoza, J, Montalvo, T Rivera, Torres, J G, Guzmán Olguín, J C, Falcony, C.
Format: Article
Language:English
Subjects:
Crystallization
Emission analysis
Europium
Hafnium oxide
Luminous intensity
Photoluminescence
Physics
Raw materials
Reaction time
Room temperature
Synthesis
Temperature effects
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Summary:Photoluminescent analysis of HfO2 doped with Eu3+, as a function of temperature is reported. Samples were synthesized by hydrothermal method at 200 °C of temperature and 120 minutes of reaction time, using chlorides as raw materials. The HfO2 was doped with trivalent europium ions (Eu3+) at concentrations 1, 2, 3, 5 and 10 % atomic. X-ray diffraction (XRD) showed synthesized material crystallized in monoclinic phase characteristic of HfO2. Scanning electron microscopy showed presence of particles of smaller size than 100 nm forming agglomerates. Photoluminescent analysis at room temperature for sample doped with Eu3+ (3%) display highest luminescent emission. Finally, photoluminescent analysis as a function of temperature, shown changes in luminescent intensity in 5D1 and 5D0 transitions, for 0 to 50 °C temperature range.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1221/1/012003