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Structure and emission properties of glass‐ceramics containing (Eu,Yb) 2 TiO 5 nanocrystals
Author(s) -
Wei Qiongqiong,
Han Jianjun,
Liu Chao,
Zhou Xuedong,
Wang Jing,
Xie Jun
Publication year - 2019
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.13243
Subject(s) - materials science , nanocrystal , ion , pyrochlore , oxide , fluorite , photon upconversion , ceramic , inorganic chemistry , luminescence , phase (matter) , nanotechnology , optoelectronics , metallurgy , chemistry , organic chemistry
Potential of oxide glass‐ceramics containing defect‐fluorite nanocrystals as host matrix for rare‐earth ions for efficient spectral conversion is investigated. The oxide glass‐ceramics embedded with defect fluorite pyrochlore (Eu,Yb) 2 TiO 5 nanocrystals are prepared through melt‐quenching and subsequent heat‐treatment. It turns out that part of Eu 3+ and Yb 3+ ions are incorporated into the oxide nanocrystals, and Eu 3+ ions remained in the glassy phase are reduced into Eu 2+ ions. Blue emission from Eu 2+ ions, red emission from Eu 3+ ions, and near‐infrared emission from Yb 3+ ions are generated and modulated by excitation wavelength. These features make oxide glass‐ceramics containing defect‐fluorite (Eu,Yb) 2 TiO 5 nanocrystals promising as host for rare‐earth ions for efficient spectral conversion.