Thermally stable ferroelectricity and photoluminescence in Sm-doped 0.8(Bi0.5Na0.5)TiO3-0.2SrTiO3 ferroelectric ceramics

He, Junyu; Zhang, Jingji; Xing, Hongjie; Pan, Haoli; Jia, Xuanrui; Wang, Jiangying; Zheng, Peng

doi:10.1016/j.ceramint.2016.09.146

Cited by 14 publications

(3 citation statements)

References 31 publications

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“…On the other hand, piezoelectric materials doped with rare-earth (RE) ions have received significant consideration [18][19][20][21][22]. The crystallographic symmetry of the host material is one of the most important factors affecting the photoluminescence (PL) property of RE ions.…”

Section: Introductionmentioning

confidence: 99%

Quantitatively Analyzing Pressure Induced Phase Transformation by Photoluminescence Spectra in Eu3+-doped Sodium Potassium Bismuth Titanate

Zeng

Zhou

2020

Materials

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(Na0.8,K0.2)0.5Bi0.497Eu0.003TiO3 (NKBET20) piezoelectric ceramic powders were prepared by the solid-reaction method. The phase structures of the NKBET20 powders under various pressures were investigated by photoluminescence (PL) spectra and X-ray diffraction (XRD). The PL spectra of the doped Eu3+ ions suggest a pressure induced transformation from the tetragonal to rhombohedral phase (R phase), and the phase transformations were confirmed by XRD analyses. Furthermore, the fluorescence intensity ratio of the D 0 5 → F 2 7 transition to the D 0 5 → F 1 7 transition (FIR21) could be utilized for the quantitative analyses of the phase transformation. The results from the PL method show that as the pressure increases from 0 to 500 MPa, the fractions of the R phase of the NKBET20 powders increase from about 11% to 58%, while the fractions of the tetragonal phase (T phase) decrease from about 89% to 42%, which are consistent with the XRD Rietveld refinement. Unlike the ceramic bulks, the pressure induced phase transformation in the ceramic powders shows no obvious trigger point and is much gentler. This work suggests a different viewpoint to study the pressure induced phase transformation qualitatively and quantitatively, which can be used for more phase analyses.

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Section: Introductionmentioning

confidence: 99%

Quantitatively Analyzing Pressure Induced Phase Transformation by Photoluminescence Spectra in Eu3+-doped Sodium Potassium Bismuth Titanate

Zeng

Zhou

2020

Materials

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“…The rare‐earth (RE) ions–doped ferroelectric ceramics is becoming an interesting field because of the coupling of luminescence and electrical properties . Many ferroelectric ceramics doped with RE ions show efficient PL properties while maintaining their excellent electrical properties, making them multifunctional materials .…”

Section: Introductionmentioning

confidence: 99%

“…The rare-earth (RE) ions-doped ferroelectric ceramics is becoming an interesting field because of the coupling of luminescence and electrical properties. [1][2][3][4] Many ferroelectric ceramics doped with RE ions show efficient PL properties while maintaining their excellent electrical properties, making them multifunctional materials. [5][6][7] It is generally believed that the optimal properties of ferroelectric ceramics can be achieved under condition of multiphase coexistence, 8 such as morphotropic phase boundary (MPB).…”

Section: Introductionmentioning

confidence: 99%

Quantitative analyses of electric field–induced phase transition in (Na, K)_0.5Bi_0.5TiO₃:Eu ceramics by photoluminescence

Zeng

Zhou

2019

J Am Ceram Soc

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Most reported results about phase transition probed by the photoluminescence (PL) spectra of Eu 3+ ions are qualitative, but the quantitative analyses of phase transition were presented in this work. We fabricated (Na 0.8 , K 0.2 ) 0.5 Bi 0.497 Eu 0.003 TiO 3 (NKBT20:Eu) ferroelectric ceramics and investigated the phase structures and the PL spectra of NKBT20:Eu ceramics before and after poling at different electric fields.The PL spectra indicate a phase transition from tetragonal phase (T phase) to rhombohedral phase (R phase) within NKBT20:Eu ceramics after poling, consistent with the analyses by X-ray diffraction (XRD). Moreover, the emission intensity ratios of the "hypersensitive" transition 5 D 0 → 7 F 2 to the magnetic dipole transition 5 D 0 → 7 F 1 could be used to calculate the fractions of the phase transition quantitatively, which were further confirmed by XRD Rietveld refinements. This study provides a different perspective to investigate the phase transition induced by electric field for NKBT20:Eu ceramics, qualitatively and quantitatively, and the method is expected to be useful in more cases of phase analyses.

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Enhancement of the electrical-field-induced strain in sodium bismuth titanate-based lead-free ceramics by co-doping with Mn and Nb

Kong

Wang

Chen

et al. 2019

J Mater Sci: Mater Electron

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Thermally stable ferroelectricity and photoluminescence in Sm-doped 0.8(Bi0.5Na0.5)TiO3-0.2SrTiO3 ferroelectric ceramics

Cited by 14 publications

References 31 publications

Quantitatively Analyzing Pressure Induced Phase Transformation by Photoluminescence Spectra in Eu3+-doped Sodium Potassium Bismuth Titanate

Quantitatively Analyzing Pressure Induced Phase Transformation by Photoluminescence Spectra in Eu3+-doped Sodium Potassium Bismuth Titanate

Quantitative analyses of electric field–induced phase transition in (Na, K)_0.5Bi_0.5TiO₃:Eu ceramics by photoluminescence

Enhancement of the electrical-field-induced strain in sodium bismuth titanate-based lead-free ceramics by co-doping with Mn and Nb

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Thermally stable ferroelectricity and photoluminescence in Sm-doped 0.8(Bi0.5Na0.5)TiO3-0.2SrTiO3 ferroelectric ceramics

Cited by 14 publications

References 31 publications

Quantitatively Analyzing Pressure Induced Phase Transformation by Photoluminescence Spectra in Eu3+-doped Sodium Potassium Bismuth Titanate

Quantitatively Analyzing Pressure Induced Phase Transformation by Photoluminescence Spectra in Eu3+-doped Sodium Potassium Bismuth Titanate

Quantitative analyses of electric field–induced phase transition in (Na, K)0.5Bi0.5TiO3:Eu ceramics by photoluminescence

Enhancement of the electrical-field-induced strain in sodium bismuth titanate-based lead-free ceramics by co-doping with Mn and Nb

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Quantitative analyses of electric field–induced phase transition in (Na, K)_0.5Bi_0.5TiO₃:Eu ceramics by photoluminescence