Sm3+-doped KNNS ferroelectric ceramics with enhanced photoluminescence by polarization-field-modulation

Multi-functional luminescent ceramics on account of rare earth ion doped ferroelectric have attracted significant attention because of their great potential for application, but the luminous intensity is insufficient compared with that of traditional phosphors. In this work, the luminous intensity o...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2020, Vol.31 (1), p.480-487
Main Authors: Cui, Ruoying, Tang, Ke, Zhu, Dachuan, Yue, Cheng, Yang, Lingxiang
Format: Article
Language:English
Subjects:
Asymmetry
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electric fields
Electric properties
Electron transitions
Ferroelectric materials
Ferroelectricity
Ferroelectrics
Grain size
Luminous intensity
Materials Science
Mathematical analysis
Matrix methods
Metal ions
Microstructure
Modulation
Optical and Electronic Materials
Optical properties
Organic chemistry
Phase composition
Phosphors
Photoluminescence
Point defects
Polarization
Polyvinyl alcohol
Potassium
Rare earth elements
Raw materials
Scanning electron microscopy
Symmetry
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Summary:Multi-functional luminescent ceramics on account of rare earth ion doped ferroelectric have attracted significant attention because of their great potential for application, but the luminous intensity is insufficient compared with that of traditional phosphors. In this work, the luminous intensity of Sm 3+ -doped KNNS ceramic has been enhanced by polarization as one non-chemical method. The results show that the photoluminescence intensity of the 0.75 mol% Sm 3+ -doped polarized ceramic has increased by about 10%, compared to that of the unpolarized samples, and thermal quenching appears at a higher temperature. Meanwhile, a detailed study on the phase composition, microstructure, optical performance, and polarization effect of the sample has been carried out, suggesting the enhanced photoluminescence may originate from symmetry reduction of lattice matrix by electric field polarization, which fortifies the tendency of electron transition. Hence, polarization-field-modulation is expected to blaze a trail in the synthesis of luminescent materials.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-019-02552-x