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Issue 35, 2017
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In situ reversible tuning of photoluminescence of an epitaxial thin film via piezoelectric strain induced by a Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystal

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Abstract

Conventionally, photoluminescence (PL) properties are 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 an epitaxial Yb3+/Er3+ co-doped BaTiO3 thin film through electric-field-induced strain of a piezoelectric single-crystal Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN–PT) substrate. A reversible tuning and enhancement of the PL intensity was achieved when an 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.

Graphical abstract: In situ reversible tuning of photoluminescence of an epitaxial thin film via piezoelectric strain induced by a Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystal

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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, 2017,5, 9115-9120
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    In situ reversible tuning of photoluminescence of an epitaxial thin film via piezoelectric strain induced by a 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, 5, 9115
    DOI: 10.1039/C7TC03123H

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