Journal of Hebei University(Natural Science Edition) ›› 2022, Vol. 42 ›› Issue (6): 589-598.DOI: 10.3969/j.issn.1000-1565.2022.06.005

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Synthesis and thermometric performance of NaY9(SiO4)6O2:〓 Bi3+,Eu3+phosphor

FU Nian1, YANG Zihan1, MA Lianhua2, WANG Chunhao1, TU Yingying1, LU Fachun1   

  1. 1. College of Physics Science and Technology, Hebei University, Baoding 071002, China; 2. School of Quality and Technical Supervision, Hebei University, Baoding 071002, China
  • Received:2022-03-18 Published:2023-02-22

Abstract: To search probe phosphors with better performance temperature, using the ratio method of the fluorescence intensity, the thermosensitive performance of the NaY9-x-y(SiO4)6O2:xBi3+,yEu3+ phosphor has been studied. The results show the efficient energy transfer from Bi3+ to Eu3+ can be observed. With the excitation of Bi3+, the double emission spectra of Bi3+ and Eu3+ can be acquired. With the increase of the temperature, the fluorescence intensity quenching speed of Eu3+ is slower than that of Bi3+. Based on the temperature dependent fluorescence intensity ratio of Bi3+ to Eu3+, the relative sensitivity(Sr)values of the NaY6.192(SiO4)6O2:0.108Bi3+,2.7Eu3+ probe phosphor at the temperature range of 300 to 450 K have been calculated. The maximum(Sr)is 1.51 %·K-1, which is much better than the suggested value of 0.3 %·K-1 for the practical applications. The temperature probe phosphor in this work showed the potential in the temperature sensitivity fields.

Key words: phosphor, ratio method, thermosensitive performance, sensitivity

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