期刊
CERAMICS INTERNATIONAL
卷 49, 期 24, 页码 40112-40119出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2023.09.342
关键词
Dynamic readout; Thermally stimulated luminescence; Photostimulated luminescence; Optical data storage
This study successfully developed a multi-mode dynamic luminescent material LiGaO2, and different luminescence properties were obtained by adjusting the synthetic atmospheres. The dynamic optical information readout based on intensity-color-wavelength multiplexing in undoped single ODS materials is realized through the synergistic effect of trap centers and luminescence centers.
Optical data storage (ODS) materials have attracted much attention due to their unparalleled advantages, including outstanding low cost, high speed, and high storage density. The dynamic readout of high-resolution optical information in a single medium has always been a hotspot in the design of ODS materials. This work successfully developed a multi-mode dynamic luminescent material LiGaO2. By adjusting the defect states in different synthetic atmospheres, LiGaO2 materials with different luminescence properties were obtained, it appears green glow in air and nitrogen atmospheres and orange-red glow in reductive atmospheres. LiGaO2 material synthesized in a reduction atmosphere (R-LiGaO2) not only has the characteristics of rapid filling, but also has more abundant trap distribution, so it has a good optical information storage capacity, which is very suitable for the field of ODS. Through the analysis and characterization of R-LiGaO2 material in thermally-stimulated luminescence (TSL) and photostimulated luminescence (PSL), it is found that the dynamic optical information readout based on intensity-color-wavelength multiplexing in undoped single ODS materials is realized through the synergistic effect of trap centers and luminescence centers. This work provides a new strategy for the design and application of ODS materials.
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