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In-situ reversibly tuning photoluminescence of epitaxial thin film via piezoelectric strain induced by Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal

Abstract

Conventionally, photoluminescence (PL) property is mainly modulated through traditional chemical approaches which are ex-situ, irreversible and static modulation techniques, potentially limiting the understanding of the detailed process of luminescence and smart PL applications. Here, an in-situ dynamic routine is developed to tune the PL response in epitaxial Yb3+/Er3+ co-doped BaTiO3 thin film through electric-field-induced strain of piezoelectric single-crystal Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) substrate. A reversible tuning and enhancement of the PL intensity was achieved when external electric field was applied to the PMN-PT single-crystal substrate. The underlying mechanism responsible for the dynamic enhancement of the PL intensity was attributed to the strain induced lower host symmetry so as to enhance the hypersensitive transition probability of the rare-earth ions. The present work could provide a significant guide for the in-situ dynamic and active modulation of the PL performances of luminescent devices through the piezoelectric strain.

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Publication details

The article was received on 13 Jul 2017, accepted on 09 Aug 2017 and first published on 09 Aug 2017


Article type: Paper
DOI: 10.1039/C7TC03123H
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    In-situ reversibly tuning photoluminescence of epitaxial thin film via piezoelectric strain induced by Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal

    F. Wang, D. Liu, Z. Chen, Z. Duan, Y. Zhang, D. Sun, X. Zhao, W. Shi, R. Zheng and H. Luo, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC03123H

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