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arXiv · 1709.06231

Tuning photoluminescence response by electric field in the lead-free piezoelectric Na1/2Bi1/2TiO3-BaTiO3

Deepak Kumar Khatua·Abhijeet Kalaskar·Rajeev Ranjan
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Abstract

We show that an electrically soft ferroelectric host can be used to tune the photoluminescence (PL) response of rare-earth emitter ions by external electric field. The proof of this concept is demonstrated by changing the PL response of Eu+3 ion by electric field on a model system Eu-doped 0.94Na1/2Bi1/2TiO3-0.06BaTiO3. We also show that new channels of radiative transitions, forbidden otherwise, open up due to positional disorder in the system, which can as well be tuned by electric field.

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Deepak Kumar Khatua, Abhijeet Kalaskar, Rajeev Ranjan. 2017-09-19. Tuning photoluminescence response by electric field in the lead-free piezoelectric Na1/2Bi1/2TiO3-BaTiO3. https://doi.org/10.1103/physrevlett.116.117601

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