TY - JOUR
T1 - Realizing Superior Luminescence in Oxyfluoride Glass-Ceramics by Enhancing Nano-Micro Phase Separation
AU - Li, Zhencai
AU - Li, J.H.
AU - Chen, C.Y.
AU - Li, S.
AU - Hu, J.
AU - Christensen, Johan Frederik Schou
AU - Zhou, D.C.
AU - Jensen, Lars Rosgaard
AU - Ni, J.C.
AU - Qiao, X.S.
AU - Du, J.C.
AU - Smedskjær, Morten Mattrup
AU - Shibuya, K.
AU - Zhang, Y.F.
AU - Qiu, J.B.
AU - Ren, J.J.
AU - Yue, Yuanzheng
PY - 2024/3/5
Y1 - 2024/3/5
N2 - In this work, a novel series of oxyfluoride glasses-ceramics (GCs) is developed by enhancing the phase separation through the substitution of LaF3 for La2O3. The thus-derived GCs exhibit a remarkable 2700-fold increase in up-conversion (UC) luminescence of Er3+ ions compared to the precursor glass. From the 19F Nuclear Magnetic Resonance analysis, this enhancement is attributed to the structural disorder-to-order transition in the fluoride-rich phase. Upon isothermal heat treatment, the translucent GCs transform into transparent ones, making UC luminescence even stronger. The enhanced UC luminescence leads to strong temperature-sensing ability of the studied glasses. The nano-micro phase separation is clarified by atomistic simulations and scanning electron microscopy. This study implies that phase separation engineering is a powerful way to achieve superior photonic performances.
AB - In this work, a novel series of oxyfluoride glasses-ceramics (GCs) is developed by enhancing the phase separation through the substitution of LaF3 for La2O3. The thus-derived GCs exhibit a remarkable 2700-fold increase in up-conversion (UC) luminescence of Er3+ ions compared to the precursor glass. From the 19F Nuclear Magnetic Resonance analysis, this enhancement is attributed to the structural disorder-to-order transition in the fluoride-rich phase. Upon isothermal heat treatment, the translucent GCs transform into transparent ones, making UC luminescence even stronger. The enhanced UC luminescence leads to strong temperature-sensing ability of the studied glasses. The nano-micro phase separation is clarified by atomistic simulations and scanning electron microscopy. This study implies that phase separation engineering is a powerful way to achieve superior photonic performances.
KW - nanocrystals
KW - phase separation engineering
KW - temperature-sensing
KW - transparent glass-ceramics
KW - up-conversion luminescence
UR - http://www.scopus.com/inward/record.url?scp=85176224447&partnerID=8YFLogxK
U2 - 10.1002/adom.202301999
DO - 10.1002/adom.202301999
M3 - Journal article
SN - 2195-1071
VL - 12
JO - Advanced Optical Materials
JF - Advanced Optical Materials
IS - 7
M1 - 2301999
ER -