Photoluminescence properties of oxy-fluoride glass-ceramics of La2O3-CaF2-Al2O3-SiO2 system (La2O3-CaF2-Al2O3-SiO2 계 oxy-fluoride 결정화 유리의 광 발광 특성)

Taewan Ha (하태완); KANG SEUNG GU (강승구)

doi:10.6111/JKCGCT.2021.31.2.084

Photoluminescence properties of oxy-fluoride glass-ceramics of La2O3-CaF2-Al2O3-SiO2 system

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2021, 31(2), pp.84-88
DOI : 10.6111/JKCGCT.2021.31.2.084
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : April 9, 2021
Accepted : April 19, 2021
Published : April 30, 2021

Taewan Ha ¹, KANG SEUNG GU ¹

¹경기대학교

Accredited

ABSTRACT

The change of the photoluminescence properties of La2O3-CaF2-Al2O3-SiO2 glass-ceramics doped with rare earth material, that is used as laser and optical sensors, was analyzed according to heat treatment temperature. The heat treatment conditions for fabricating glass-ceramics were obtained through non-isothermal thermal analysis, and X-ray diffraction analysis was performed to determine the degree of crystal growth and kinds of crystal phases generated according to the heat treatment temperature. Using Scherrer’s equation, it was predicted that crystals with a size of 25~40 nm would be generated inside the glass-ceramics. Photoluminescence (PL) analysis showed that the specimens heat-treated at 660°C to 670°C for 1 hour had the highest PL intensity. Also, from the CIE color coordinate analysis, all glass-ceramics specimens emitted red-orange light regardless of the heat treatment condition.

KEYWORDS

Oxy-fluoride, Glass-ceramics, Rare earth material, Heat-treatment, Photoluminescence

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Photoluminescence properties of oxy-fluoride glass-ceramics of La2O3-CaF2-Al2O3-SiO2 system

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* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Photoluminescence properties of oxy-fluoride glass-ceramics of La2O3-CaF2-Al2O3-SiO2 system

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