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- W3021084807 abstract "Abstract It is highly significant to develop multifunctional optical materials to meet the huge demand of modern optics. Usually, it is difficult to realize multiple optical properties in one single material. In this study, we choose ferroelectric (KxNa1-x)NbO3:Pr3+ (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) as hosts, and the rare earth ions Pr3+ are doped in them. For the first time, the integration of photoluminescence, photochromism, luminescence modulation and thermoluminescence and has been achieved in the Pr3+ doped (KxNa1-x)NbO3:Pr3+ ferroelectric ceramics. Upon 337- or 448-nm light irradiation, all samples show strong red emissions centered at 610 nm. The photochromic reaction increases with the increasing K+ content in the (KxNa1-x)NbO3:Pr3+ ceramics. A strong photochromic reaction has been found in the (K0.5Na0.5)NbO3:Pr3+ ceramics. Accordingly, a large and reversible photoluminescence modulation (ΔRt = 50.71%) is achieved via altering 395-nm-light irradiation and 200 °C thermal stimulus. All the prepared ceramics show a visible thermoluminescence when stimulated at 200 °C. The mechanisms of luminescence modulation and thermoluminescence are discussed. Present study could provide a feasible paradigm to realize multiple optical properties in one single material." @default.
- W3021084807 created "2020-05-13" @default.
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- W3021084807 date "2020-09-01" @default.
- W3021084807 modified "2023-10-17" @default.
- W3021084807 title "Photoluminescence, thermoluminescence and reversible photoluminescence modulation of multifunctional optical materials Pr3+ doped K Na1-NbO3 ferroelectric ceramics" @default.
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- W3021084807 doi "https://doi.org/10.1016/j.jeurceramsoc.2020.05.003" @default.
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