Optical and scintillation properties of Eu-doped calcium orthoborate

Y. Fujimoto, Y. Futami, T. Yanagida, S. Kurosawa, N. Kawaguchi, K. Fukuda, D. Totsuka, A. Yoshikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Single crystals of Eu-doped calcium orthoborate have been grown by micro-pulling (μ-PD) technique with radio frequency heating system, and its transmittance, photoluminescence and radiation responses were investigated. In transmittance spectra, Eu-doped crystal showed broad absorption band around 200-450 nm, which is due to the complex of charge transfer (CT) transition and 4f-4f transition of Eu3+. Intense Eu2+ 5f-4f and Eu 3+ 4f-4f emission peaks were observed when excited to 265 nm and 385 nm, and the calculated decay times were 230 ns and 1.5 ms, respectively. 241Am 5.5 MeV α-ray excited radioluminescence spectra indicated both Eu2+ 5f-4f and Eu3+ 4f-4f emission peaks.

Original languageEnglish
Title of host publicationMaterials Integration
PublisherTrans Tech Publications Ltd
Pages235-239
Number of pages5
ISBN (Print)9783037853764
DOIs
Publication statusPublished - 2012
EventInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011 - Sendai, Japan
Duration: 2011 Dec 12011 Dec 2

Publication series

NameKey Engineering Materials
Volume508
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

OtherInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
CountryJapan
CitySendai
Period11/12/111/12/2

Keywords

  • Borate
  • Luminescence
  • Scintillator
  • Single crystal

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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