Photoluminescence and afterglow in samarium-doped zirconia toward biological temperature sensor

Satoshi Goto, Yoshihiro Takahashi, Nobuaki Terakado, Yasushi Nakajima, Noriko Onoue, Tsuyoshi Shinozaki, Takumi Fujiwara

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This study describes the investigation of photoluminescence (PL) and afterglow properties of samarium ion (Sm3+)-doped zirconia and the comparison with those of pure zirconia. The pure sample exhibits bluish PL and afterglow upon excitation by ultraviolet light, whereas white-to-reddish PL and white afterglow are detected by means of visual observation and spectroscopic measurement in the doped samples. It is therefore suggested that the Sm3+-doped zirconia is applicable to a temperature-sensing probe for the human body because it shows afterglow PL in the near-infrared “biological window” region.

Original languageEnglish
Pages (from-to)696-699
Number of pages4
JournalJournal of the Ceramic Society of Japan
Issue number10
Publication statusPublished - 2019


  • Afterglow
  • Photoluminescence
  • Zirconia


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