pp. 1427-1433
S&M2190 Research Paper of Special Issue https://doi.org/10.18494/SAM.2020.2745 Published: April 20, 2020 Persistent Luminescence Properties of Ti4+-doped K2ZrSi3O9 Wadeite [PDF] Yuta Iida, Kenji Sawamura, Kenichiro Iwasaki, Takayuki Nakanishi, Fumitaka Iwakura, Yasushi Nakajima, and Atsuo Yasumori (Received December 19, 2019; Accepted February 28, 2020) Keywords: persistent luminescence, zirconium, thermoluminescence
Luminescent K2ZrSi3O9 (mineral wadeite): Ti with afterglow properties was reported for the first time. The structure analysis revealed that titanium ions were mainly substituted at the Zr4+-sites of K2ZrSi3O9 as the tetravalent state. The persistent luminescence peaks at 480 nm were strongly related to two factors, namely, charge transfer (CT) transition in a Ti-O polyhedron and oxygen vacancy (Vo) around Zr4+ sites. The K2ZrSi3O9 wadeite including titanium ions is promising for application as a sensor using light energy storage materials.
Corresponding author: Takayuki Nakanishi, Atsuo YasumoriThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yuta Iida, Kenji Sawamura, Kenichiro Iwasaki, Takayuki Nakanishi, Fumitaka Iwakura, Yasushi Nakajima, and Atsuo Yasumori, Persistent Luminescence Properties of Ti4+-doped K2ZrSi3O9 Wadeite, Sens. Mater., Vol. 32, No. 4, 2020, p. 1427-1433. |