Abstract
Abstract Ferroelectric oxide nanocrystals, in combination with the robust coupling of an electric field with crystal structure symmetry, makes such systems agreeable to field-induced crystal structural transformation. The luminescent properties of rare earth ions are sensitive to the symmetry of the surrounding crystal field. The luminescence tuning of rare earth ions is an important assignment in the research of luminescent materials. However, the current conditional feasibility and reversibility in the exploration of luminescence modification remain major challenges. In this article, the luminescence modulation of rare earth ions has been developed in Yb3+/Er3+ codoped ferroelectrics glass ceramics containing Bi4Ti3O12 nanocrystals through an electric field. The inclusion of nanocrystals in the glass matrix greatly enhances the electrical resistance. Both upconversion and near-infrared emissions of rare earth ions are effectively enhanced more than twice via polarization engineering. The electric field regulates the photonic properties of rare earth ions with excellent reversibility and nonvolatility in ferroelectrics. The effective modification by electric field provides a new scheme for optical storage and optoelectronic devices.
Highlights
Oxide ferroelectric materials have comprehensive applications in nonvolatile memories, actuators, and capacitors for optoelectronic applications [1, 2]
The luminescence modulation of rare earth ions has been developed in Yb3+/Er3+ codoped ferroelectrics glass ceramics containing Bi4Ti3O12 nanocrystals through an electric field
Polarization rotation plays an irreplaceable role in the application of ferroelectric materials
Summary
Oxide ferroelectric materials have comprehensive applications in nonvolatile memories, actuators, and capacitors for optoelectronic applications [1, 2]. The external electric field drives the nanoscale shift of the active cations within Bi4Ti3O12, which effects the crystal structure. Ferroelectric oxide nanocrystals with rare earth ions have great potential in future optoelectronic devices due to their unique luminescence and inherent electric properties. Traditional chemical methods are often employed to modify the luminescent properties of rare earth ions, which tailor the composition of the host and the proportion of dopant ions. Based on the sensitivity of rare earth ions luminescence to crystal field inhomogeneities, Yb3+/Er3+ can be employed as luminescent probes to detect the reversible nanoscale bond perturbations of Bi4Ti3O12 under an electric field. The reversible structure change of Bi4Ti3O12 ferroelectric material induced by an electric field can effectively modify Yb3+/Er3+ luminescence with nonvolatile. The developed Yb3+/Er3+ codoped glass composite containing ferroelectric Bi4Ti3O12 nanocrystals have wide uses in storage and photonic devices
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