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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 5: 902 - 906

DOI: https://doi.org/10.3724/SP.J.1077.2008.00902

Research Paper

Study on the Structure and Photoluminescence of Ho3+-doped BST Films

  • PAN Rui-Kun ,
  • WANG Jun ,
  • DONG Xiu-Mei ,
  • ZHANG Tian-Jin ,
  • HU Lan ,
  • JIANG Juan
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  • Key Laboratory of Ferroelectric & Piezoelectric Materials and Devices of Hubei Province, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China

Received date: 2007-10-17

  Revised date: 2007-12-21

  Online published: 2008-09-20

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Abstract

Barium-strontium titanate (Ba0.65Sr0.35TiO3) films doped with Ho3+(1mol%, 3mol%, 5mol%, 8mol%) were prepared by the sol-gel technique. The AFM, XRD, UV-Vis spectra and photoluminescence (PL) spectra of BST films were investigated. Results show that the lattice parameters of BST films increase when Ho3+ dopant increases from 1mol% to 3mol% then decrease with Ho3+ dopant from 3mol% to 8mol%. The lights centered at about 615, 650 and 750nm are corresponding to the transitions of 5F3→5F7, 5F5→5F8 and 5S2, 5F4→5F7, respectively. The lifetime spectra of 5S2, 5F4 and three PL spectra above indicate that the luminescence intensity reach the maximum in 3mol% Ho3+ -doped BST films. The optimized Ho3+ dopant in BST films is 3mol%. The crossing relaxation mechanisms and site-substituting between H 3+ and Ba2+/Sr2+/Ti4+ are analyzed.

Key words： BST films; rare earth-doping; photoluminescence

Cite this article

PAN Rui-Kun , WANG Jun , DONG Xiu-Mei , ZHANG Tian-Jin , HU Lan , JIANG Juan . Study on the Structure and Photoluminescence of Ho3+-doped BST Films[J]. Journal of Inorganic Materials, 2008 , 23(5) : 902 -906 . DOI: 10.3724/SP.J.1077.2008.00902

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