Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 5, Issue 35, Pages 9080-9087Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7tc03076b
Keywords
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Funding
- National Natural Science Foundation of China [51562030, 51462028]
- Natural Science Foundation of Inner Mongolia [2015BS0503]
- Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region [NJYT-17-A10, NJYT-17-B09]
- Young Academic Core Program of Inner Mongolia University of Science and Technology [2016YQL01, 2015QNGG04]
- Program for Innovative Research Team in Universities of Inner Mongolia Autonomous Region [NMGIRT-A1605]
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In this paper, we reported a new photosensitive material, Sm doped K0.5Na0.5NbO3 (KNN) ceramics, fabricated using a solid-sate reaction method, which exhibits both photochromism and luminescence switching properties. By alternating visible light irradiation (lambda > 407 nm) and thermal stimulus, the samples show a reversible color change from the initial green to pale gray. Interestingly, luminescence emission intensity can be effectively tuned using photochromic reactions. Furthermore, the luminescence switching degree strongly depends on the firing temperature. These results suggest that KNN-based perovskite oxides with photochromism, luminescence switching and ferroelectric energy storage properties are particularly attractive for optical data storage applications as multi-functional materials.
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