Luminescence study on Eu or Tb doped lanthanum-gadolinium pyrosilicate crystal

Shunsuke Kurosawa, Toetsu Shishido, Takamasa Sugawara, Akiko Nomura, Kunio Yubuta, Jan Pejchal, Rikito Murakami, Yuui Yokota, Yasuhiro Shoji, Yuji Ohashi, Kei Kamada, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

Abstract

(Eu0.01, Gd0.90, La0.09)2Si2O7 (Eu:La-GPS) and (Tb0.01, Gd0.90, La0.09)2Si2O7 (Tb:La-GPS) crystals were grown by the floating zone method, and their optical and scintillation properties were investigated. Gd3+-to-Tb3+ or -Eu3+ energy transfer processes were found, and photo-luminescence and radio-luminescence emission spectra showed 5D0-7Fi (i = 1-4) Eu3+ transitions in Eu:La-GPS, and 5D3-7Fi (i = 3-6) and 5D4-7Fi (i = 3-6) transitions in Tb:La-GPS. Using these scintillators, alpha-ray imaging was possible with a CMOS camera. These materials can be used for X-ray detection as well.

Original languageEnglish
Pages (from-to)80-83
Number of pages4
JournalOptical Materials
Volume41
DOIs
Publication statusPublished - Mar 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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