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Wide‐range thermometry based on green up‐conversion luminescence of K 3 LuF 6 :Yb 3+ /Er 3+ bulk oxyfluoride glass ceramics
Author(s) -
Cao JiangKun,
Hu FangFang,
Chen LiPing,
Guo Hai,
Duan Changkui,
Yin Min
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14606
Subject(s) - luminescence , materials science , analytical chemistry (journal) , monoclinic crystal system , annealing (glass) , spectroscopy , ion , ytterbium , doping , ceramic , atmospheric temperature range , nanocrystal , crystal structure , nanotechnology , crystallography , chemistry , optoelectronics , physics , organic chemistry , chromatography , quantum mechanics , meteorology , composite material
Yb 3+ /Er 3+ ions codoped bulk glass ceramics ( GC ) with embedded monoclinic K 3 LuF 6 nanocrystals are reported for potential temperature‐sensing application by using the fluorescence intensity ratio method. Such GC with good transparency and enhanced up‐conversion were prepared by the simple conversional melt‐quenching method and subsequent annealing process. Optical, structural, and temperature‐sensing up‐conversion properties were characterized systematically. Optical spectroscopy analysis confirms the incorporation of Yb 3+ /Er 3+ into the K 3 LuF 6 crystalline lattice, resulting in enhanced up‐conversion luminescence. Compared to other Er 3+ ‐doped typical systems, Er 3+ ions in K 3 LuF 6 GC present large energy gap (870 cm −1 ) and high relative sensitivity (37.6 × 10 −4 K −1 at 625 K), revealing that K 3 LuF 6 :Yb 3+ /Er 3+ GC can be excellent candidates for optical thermometers.