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Structural phase evolved Ni 2+ ‐doped fluoride nanocrystals in KF−ZnF 2 −SiO 2 glass‐ceramics
Author(s) -
Ding Dashuang,
Wang Yanlong,
Lin Changgui,
Ren Jing,
Shi Wenbo,
Wang Pengyuan,
Yang Bing,
Zhang Shaoqian,
Duo Liping
Publication year - 2021
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.17504
Subject(s) - nanocrystal , doping , materials science , crystallization , excited state , crystal structure , fluoride , ion , phase (matter) , ceramic , crystallography , analytical chemistry (journal) , mineralogy , inorganic chemistry , chemistry , nanotechnology , optoelectronics , metallurgy , atomic physics , physics , organic chemistry , chromatography
Incorporation of transition‐metal ions (TMIs) in the precipitated nanocrystals (NCs) of glass‐ceramics (GCs) greatly improves the photonic properties of these materials. The crystal field and coordination of TMIs show fingerprints for spectroscopic characterization. However, it is difficult to probe the effect of the host NCs’ structural phase on doped TMIs’ d‐d orbitals. Herein, ZnF 2 :Ni and KZnF 3 :Ni based on controllable crystallization in KF‐ZnF 2 ‐SiO 2 :Ni 2+ GCs were taken as model systems. Compared to ZnF 2 , perovskite‐type KZnF 3 has higher binding energy Zn‐F bonds in which Ni 2+ are easier to be segregated, which makes KZnF 3 :Ni be better “excited electron trapper” due to hole localization to intra‐gap Ni states. These findings contribute to the understanding and design of TMIs‐doped GCs in practical applications.