Abstract
Sm3+ doped KSr2Nb5O15 (KSN-Sm) ceramics exhibiting the electro-photoluminescent coupling effect were prepared by two-step sintering technology. The microstructures, electrical and luminescent properties were characterized. In addition, the luminescence modulation behavior upon the application of an in-situ electric field was investigated. It was found that the luminescent emission intensity decreased with increasing in-situ dc bias, and a high modulation ratio of approximately 20%@20 kV/cm was achieved. This work demonstrates that KSN-based ferroelectric ceramics with the tetragonal tungsten bronze structure are promising optical materials with good luminescence modulation behavior.
Original language | English |
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Article number | 128613 |
Journal | Materials Letters |
Volume | 281 |
DOIs | |
State | Published - 15 Dec 2020 |
Keywords
- Ferroelectrics
- In-situ modulation
- KSrNbO
- Luminescence