Photo- And radioluminescence of ZnO-precipitated glass-ceramics

Hirokazu Masai, Takayuki Yanagida, Takumi Fujiwara

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The photoluminescence (PL) and radioluminescence (RL) of ZnO-precipitated CaO-B2O3-ZnO-Al2O3-K2O-SiO2(CaBZAKS) glass-ceramics were examined. Surface crystallization with a certain crystal orientation was observed after heat treatment. A broad emission was observed in both the CaBZAKS glass and the glass-ceramics. The PL decay curves of the glass-ceramics indicate that decay constants are increased by the crystallization of ZnO. Because the scintillation and scintillation decay spectra obtained by X-ray irradiation are independent of the heat treatment conditions, scintillation mainly depends on the host matrix, whose emission decays consist of at least three components. On the other hand, an optically stimulated luminescence (OSL) with a stimulation of 1.97 eV shows that the OSL intensity, whose emission energy is the same as that of scintillation, increases with heat treatment temperature.

Original languageEnglish
Pages (from-to)237-245
Number of pages9
JournalSensors and Materials
Volume27
Issue number3
DOIs
Publication statusPublished - 2015

Keywords

  • Glass
  • Glass-ceramics
  • Radioluminescence
  • ZnO

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

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