Optical and scintillation properties of bulk ZnO crystal

Takayuki Yanagida, Yutaka Fujimoto, Kohei Yamanoi, Masataka Kano, Akira Wakamiya, Shunsuke Kurosawa, Nobuhiko Sarukura

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Single crystal bulk ZnO scintillator grown by the hydrothermal method was tested on its scintillation performances. In X-ray induced radio luminescence spectrum, it exhibited two intense emission peaks at 400 and 550 nm. The former was ascribed to the free and bound exciton related luminescence and the latter to oxygen vacancy related one, respectively. X-ray induced scintillation decay time of the exciton related emission measured by the pulse X-ray streak camera system resulted ∼ 4 ns. Finally, the light yield under 241Am 5.5 MeV α-ray was examined and it resulted ∼ 500 ph/5.5 MeV-α.

Original languageEnglish
Pages (from-to)2284-2287
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume9
Issue number12
DOIs
Publication statusPublished - 2012 Dec 1

Keywords

  • Radiation detectors
  • Scintillation detectors
  • Streak camera
  • ZnO

ASJC Scopus subject areas

  • Condensed Matter Physics

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