Optical temperature sensor using infrared-to-visible-frequency upconversion in Er3+/Yb3+-codoped Bi3TiNbO9 ceramics

Heng Zhi Chen, Bin Yang, Yan Sun, Ming Fu Zhang, Zhu Wang, Rui Zhang, Zhi Guo Zhang, Wen Wu Cao

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An optical temperature sensor based on infrared-to-visible upconversion emission in Er3+/Yb3+ co-doped Bi3TiNbO 9 (BTN) ceramics is reported. The fluorescence intensity ratio of the green upconversion photoluminescence (UC-PL) around 524 nm and 545 nm depends on temperature. The operating temperature range and the maximum sensitivity of Er3+/Yb3+ co-doped Bi3TiNbO9 ceramics are 123-693 K and 0.0032 K-1, respectively. BTN:Er 3+/Yb3+ ceramic has good thermal, physical and chemical stability, great UC-PL intensity and low cost fabrication. The results imply that Er3+/Yb3+ co-doped Bi3TiNbO9 ceramic is promising for applications in wide-temperature-range sensors.

Original languageEnglish (US)
Article number087804
JournalChinese Physics Letters
Issue number8
StatePublished - Aug 1 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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