Temperature and concentration effects on upconversion photoluminescence properties of Ho3+ and Yb3+ codoped 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3 multifunctional ceramics

Zhen Liu, Guicheng Jiang, Ruixue Wang, Chengkai Chai, Limei Zheng, Zhiguo Zhang, Bin Yang, Wenwu Cao

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Abstract

Ho3+ and Yb3+ codoped lead magnesium niobate-lead titanate (PMN-PT) ceramics with various doping concentration have been fabricated by conventional solid reaction method. Under the excitation of 980 nm laser, as-synthesized samples exhibit bright yellow-green upconversion (UC) luminescence. Their UC photoluminescence properties were investigated by the emission spectra with respect to various concentration of Ho3+ and Yb3+. Results show that optimal luminescent concentration was obtained in 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3 ceramics codoped with 0.5 mol% Ho3+ and 2 mol% Yb3+ (abbreviated as 67PMN-33PT:2Yb,0.5Ho). The possible mechanism of UC emission was discussed by energy level diagrams of Ho3+ and Yb3+ ions according to the dependence of integrated intensity of UC emission bands on pumping power. Furthermore, the temperature dependence of UC emission intensity of 67PMN-33PT:2Yb,0.5Ho sample was investigated in detail in the range of 25-180 °C under excitation by a 980 diode laser. According to Arrhenius formula, the fitting result of the effect of temperature on integrated intensity of emission band was coinciding well with the experiment results. It is shown that the emission intensity depends strongly on temperature, which has excellent relative sensitivity with its maximum value of 0.77% K-1 at 93 °C. These indicate that the 67PMN-33PT:2Yb,0.5Ho ceramic may be useful for temperature sensing and optical-electrical devices as a multifunctional material.

Original languageEnglish (US)
Pages (from-to)11309-11313
Number of pages5
JournalCeramics International
Volume42
Issue number9
DOIs
StatePublished - Jul 1 2016

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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