Crystal growth and optical properties of Ce:(La,Gd)2Ge 2O7 grown by the floating zone method

Shunsuke Kurosawa, Toetsu Shishido, Takamasa Sugawara, Kunio Yubuta, Pejchal Jan, Akira Suzuki, Yuui Yokota, Yasuhiro Shoji, Kei Kamada, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Some pyrosilicate scintillators such as Ce:Gd2Si 2O7 and Ce:Lu2Si2O7 have a good light output, and especially Ce:(Gd,La)2Si2O 7 has an excellent light output of over 36,000 ph/MeV. In order to search novel scintilators, we have developed a pyrogermanate-based scintillation material (Ce0.01,Gd0.90,La0.09) 2Ge2O7 using the floating zone method. Although the light output was decreased due to quenching, 5d-4f transition of Ce 3+ was observed around 480 nm in photo- and radio-luminescence spectra. This emission wavelength was longer than that of (Ce 0.01,Gd0.90,La0.09)2Si 2O7 with an emission wavelength of 390 nm.

Original languageEnglish
Pages (from-to)142-144
Number of pages3
JournalJournal of Crystal Growth
Publication statusPublished - 2014 May 1


  • A2. Floating zone technique
  • B2. Scintillator materials
  • B3. Scintillators
  • Optical property
  • Pyrochlore
  • Pyrogermanate
  • Pyrosillicate

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry


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