Photoluminescence in Multifunctional Ferroelectrics: Pr-doped SrBi2Ta2O9

doi:10.3724/SP.J.1077.2013.12738

Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (1): 108-112.DOI: 10.3724/SP.J.1077.2013.12738

• Research Letter • Previous Articles

Photoluminescence in Multifunctional Ferroelectrics: Pr-doped SrBi₂Ta₂O₉

PENG Deng-Feng^{1, 2, 3}, ZOU Hua¹, LI Jun¹, CAO Qiu-Feng¹, HUI Xin-Wei¹, WANG Xu-Sheng¹

(1. Functional Materials Research Laboratory, Tongji University, Shanghai 200092, China; 2. National Institute of Advanced Industrial Science and Technology, Kyushu, Japan; 3. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China)

Received:2012-12-06 Revised:2013-04-01 Published:2014-01-20 Online:2013-12-09
About author:PENG Deng-Feng (1984–), male, candidate of PhD. E-mail: pengdengfeng1984@163.com
Supported by:
National Natural Science Foundation of China (51072136); Specialized Research Fund for the Doctoral Program of Higher Education (20090072120034); Scholarship Award for Excellent Doctorial Student Granted by Ministry of Education (0500219171)

Abstract

Abstract: Pr-doped SrBi₂Ta₂O₉ (SBTO) bismuth layered ferroelectrics are examined in this work. It is demonstrated that a certain amount of Pr-doped ceramic sample shows a strong red and green photoluminescence with blue excitation at room temperature. Photoluminescence excitation spectra show that the samples have broad blue excitation band. This blue band attributes to the f-f transitions from the ³H₄ ground state to the ³P_J (J=0, 1, 2) excited states of Pr³⁺. Upon this blue excitation the samples show broad photoluminescence emissions, the emission peaks correspond to the characteristic f-f transition of Pr³⁺ at ³P₁→ ³H₅ (532 nm), ³P₀→³H₅ (546 nm), ¹D₂→³H₄ (600 nm), ³P₀→³H₆ (620 nm), ³P₀→³F₂ (656 nm), and ³P₀→³F₄ (743 nm), respectively. The photoluminescence with a blue light excitation may make these Pr³⁺-doped SBTO phosphors suitable for white LED and related devices.

Key words: ferroelectric, aurivillius structure, photoluminescence, sensor, multifunctional materials

CLC Number:

TQ174

PENG Deng-Feng, ZOU Hua, LI Jun, CAO Qiu-Feng, HUI Xin-Wei, WANG Xu-Sheng. Photoluminescence in Multifunctional Ferroelectrics: Pr-doped SrBi₂Ta₂O₉[J]. Journal of Inorganic Materials, 2014, 29(1): 108-112.

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Photoluminescence in Multifunctional Ferroelectrics: Pr-doped SrBi₂Ta₂O₉

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