Journal of Inorganic Materials, Volume. 35, Issue 8, 902(2020)

Upconversion Luminescence and Temperature Sensing Properties of Layered BiOCl: Er3+ under 1550 nm Excitation

Yuehong PENG1...2, Weizhou REN1, Jianbei QIU1, Jin HAN1, Zhengwen YANG1 and Zhiguo SONG1,* |Show fewer author(s)
Author Affiliations
  • 1School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • 2School of Physics and Electronical Science, Chuxiong Normal University, Chuxiong 675000, China
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    Figures & Tables(8)
    XRD patternsof BiOCl with different Er3+ concentrations (a), effect of Er3+ concentration on the main diffraction peak near 2θ = 32º-34.5º (b), SEM image of BiOCl:Er3+(c), and the structure modelof BiOCl crystal (d)
    UC spectra (a) of BiOCl with different Er3+ concentrations (from 1mol% to 5mol%) under 1550 nm excitation and the dependence of Ired/Igreen on Er3+ concentrations (b)
    Dependence of the UC emission on power (a), energy-level diagram of Er3+ and possible up-conversion mechanism of BiOCl:Er3+ under 1550 nm excitation (b)
    Normalized up-conversion emission spectra of BiOCl:4mol%Er3+ under 1550 nm excitation at various temperatures (300-560 K) (a), relative intensities of 525, 542 and 670 nm emissions as a function of temperature (b), and the dependence of Ired/Igreen on temperature (c)
    Dependence of the fluorescence intensity ratio, the absolute sensitivity (SA) and the relative sensitivity (SR) on temperature
    FT-IR (a) and EPR (b) spectra for BiOCl:Er3+ powders
    • Table 1. Maximum temperature sensitivity for several Er3+ doped UC materials

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      Table 1. Maximum temperature sensitivity for several Er3+ doped UC materials

      UC materialsRTemperature range/KSA/(×10-3, K-1)SR/(%, K-1)Reference
      NaYF4:Er3+/Yb3+/Li+I523/I547300-4535.91.46[11]
      KMnF3:Yb3+/Er3+Ired/Igreen303-39011.35.7[2]
      YWO6:0.1Yb3+/0.02Er3+I524/I675303-5632.21.2[8]
      Ba2In2O5:Yb3+/Er3+I658/I549303-563480[10]
      BiOCl:Er3+I525/I542300-5604.231.15This work
      BiOCl:Er3+I670/I542300-56095.31.19This work
    • Table 2. Maximum temperature sensitivity for BiOCl with different Er3+ concentrations

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      Table 2. Maximum temperature sensitivity for BiOCl with different Er3+ concentrations

      Er3+ concentrationRSA/(×10-3, K-1)SR/(%, K-1)
      4mol%I670/I542=188.52exp(-1070.58/T)95.31.19
      5mol%I670/I542=231.85exp(-994.74/T)126.21.11
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    Yuehong PENG, Weizhou REN, Jianbei QIU, Jin HAN, Zhengwen YANG, Zhiguo SONG. Upconversion Luminescence and Temperature Sensing Properties of Layered BiOCl: Er3+ under 1550 nm Excitation [J]. Journal of Inorganic Materials, 2020, 35(8): 902

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    Paper Information

    Category: RESEARCH PAPER

    Received: Sep. 6, 2019

    Accepted: --

    Published Online: Mar. 15, 2021

    The Author Email: SONG Zhiguo (songzg@kmust.edu.cn)

    DOI:10.15541/jim20190462

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