In:
Scientific Reports, Springer Science and Business Media LLC, Vol. 9, No. 1 ( 2019-04-23)
Abstract:
The ability to tune and enhance the properties of luminescent materials is essential for enlarging their application potential. Recently, the modulation of the photoluminescence emission of lanthanide-doped ferroelectric perovskites by applying an electric field has been reported. Herein, we show that the ferroelectric order and, more generally the polar order, has a direct effect on the photoluminescence of Eu 3+ in the model BaZr x Ti 1−x O 3 perovskite even in the absence of an external field. The dipole arrangement evolves with increasing x from long-range ferroelectric order to short-range order typical of relaxors until the non-polar paraelectric BaZrO 3 is achieved. The cooperative polar interactions existing in the lattice ( x 〈 1) promote the off-center displacement of the Eu 3+ ion determining a change of the lanthanide site symmetry and, consequently, an abrupt variation of the photoluminescence emission with temperature. Each type of polar order is characterized by a distinct photoluminescence behaviour.
Type of Medium:
Online Resource
ISSN:
2045-2322
DOI:
10.1038/s41598-019-42897-1
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2019
detail.hit.zdb_id:
2615211-3
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