Optical and scintillation properties of bulk ZnO crystal

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

doi:10.1002/pssc.201200176

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 journal › Article › peer-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 language	English
Pages (from-to)	2284-2287
Number of pages	4
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	9
Issue number	12
DOIs	https://doi.org/10.1002/pssc.201200176
Publication status	Published - 2012 Dec 1

Keywords

Radiation detectors
Scintillation detectors
Streak camera
ZnO

ASJC Scopus subject areas

Condensed Matter Physics

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10.1002/pssc.201200176

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title = "Optical and scintillation properties of bulk ZnO crystal",

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.",

keywords = "Radiation detectors, Scintillation detectors, Streak camera, ZnO",

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T1 - Optical and scintillation properties of bulk ZnO crystal

AU - Yanagida, Takayuki

AU - Fujimoto, Yutaka

AU - Yamanoi, Kohei

AU - Kano, Masataka

AU - Wakamiya, Akira

AU - Kurosawa, Shunsuke

AU - Sarukura, Nobuhiko

PY - 2012/12/1

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N2 - 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.

AB - 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.

KW - Radiation detectors

KW - Scintillation detectors

KW - Streak camera

KW - ZnO

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Optical and scintillation properties of bulk ZnO crystal

Abstract

Keywords

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