Microstructural aspects of the CePO4:Tb3+ phosphor for luminescence sensing

Shinobu Fujihara, Yuina Takano, Mami Kitsuda

研究成果: Article査読

7 被引用数 (Scopus)


Ceramic powders and thin films of cerium phosphate doped with trivalent terbium ions (CePO4:Tb3+) were synthesized from liquid phases, and their microstructures were modulated to investigate the relationship between the structure and the luminescence switching property responsive to redox reactions. Aqueous KMnO4 and L(+)-ascorbic acid solutions were used to evaluate the redox response of CePO4:Tb3+, appearing as luminescence quenching and recovering, respectively. The particle shape and size of the powder samples depended on heat-treatment conditions, which had also a large influence on the switching property. As-prepared nanorod particles were more sensitive to the redox reactions than heat-treated larger spherical particles, indicating that the switching was governed by the surface state of the particles. The thickness of the thin-film samples was also an important factor to determine the response to the redox reactions. In any case, our results demonstrate that it is important to control the microstructure of the CePO4:Tb3+ materials for their use in luminescence switching devices for the redox monitoring.

ジャーナルInternational Journal of Applied Ceramic Technology
出版ステータスPublished - 2015 3月 1

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • マーケティング
  • 材料化学


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