Crystallization and Luminescence Properties
of Eu²⁺ Doped Diopside Glass Ceramics¹

Peijing Tian^a,b,*, Jinshu Cheng^b, Gaoke Zhang^a, Zhenxia Chen^b, and Qian Wang^b

^aSchool of Resources and Environmental Engineering, Wuhan University of Technology, China, 430070, Wuhan

^bKey Laboratory for Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology,
China, 430070, Wuhan

*e-mail: peijingtian@yahoo.com.cn

Received June 22, 2009

Abstract—Eu²⁺ doped glass ceramics have been prepared and characterized. The crystallization and optical
properties of the glass ceramics were studied by XRD, SEM, and fluorescence spectra. The precipitated crys-
talline phase in the glass ceramics was prismatic diopside (CaMgSi₂O₆) and plate-like cristobalite (-SiO₂). As
the heat treatment time increases, the content of crystals increases gradually. Fluorescence measurements
showed that Eu²⁺ ions entered into the diopside crystalline phase and induced a much stronger emission in the
glass ceramics than that in the corresponding glass. With increase of Eu²⁺ content, concentration quenching was
observed.

Key words: luminescence, glass-ceramic, Eu²⁺, diopside

DOI: 10.1134/S1087659610040061

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