Effect of the Gamma-Ray Irradiation on the Electric and Optical Properties of SrTiO3 Single Crystals

Y. S. Lee; Junhwi Lim; E. Y. Kim; Sang Don Bu

doi:10.3938/jkps.73.1566

Effect of the Gamma-Ray Irradiation on the Electric and Optical Properties of SrTiO₃ Single Crystals

Y. S. Lee
, Junhwi Lim
, E. Y. Kim
, Sang Don Bu^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

4 Scopus citations

Abstract

We investigated the visible emission property of SrTiO₃ (STO) single crystals irradiated with gammy-ray (γ-ray) at various total doses up to 900 kGy. The electric and optical absorption properties of the irradiated STO samples were hardly changed with the γ-ray irradiation, compared with those of un-irradiated STO. In contrast, the visible emission near 550 nm increased with the γ-ray dose increasing. While the development of the visible emission was indicative of the increase of oxygen vacancies inside STO by the γ-ray irradiation, the newly generated oxygen vacancies were not significantly harmful to the electric and optical properties of STO. We concluded that the STO single crystal should have a good tolerance against the damage by the γ-ray irradiation.

Original language	English
Pages (from-to)	1566-1570
Number of pages	5
Journal	Journal of the Korean Physical Society
Volume	73
Issue number	10
DOIs	https://doi.org/10.3938/jkps.73.1566
State	Published - 2018.11.1

Keywords

Gamma-ray irradiation
Oxygen vacancy
Photoluminescence
SrTiO single crystal

Quacquarelli Symonds(QS) Subject Topics

Physics & Astronomy

Access to Document

10.3938/jkps.73.1566

Cite this

@article{77ab3583acea487d9b6401b922fb0099,

title = "Effect of the Gamma-Ray Irradiation on the Electric and Optical Properties of SrTiO3 Single Crystals",

abstract = "We investigated the visible emission property of SrTiO3 (STO) single crystals irradiated with gammy-ray (γ-ray) at various total doses up to 900 kGy. The electric and optical absorption properties of the irradiated STO samples were hardly changed with the γ-ray irradiation, compared with those of un-irradiated STO. In contrast, the visible emission near 550 nm increased with the γ-ray dose increasing. While the development of the visible emission was indicative of the increase of oxygen vacancies inside STO by the γ-ray irradiation, the newly generated oxygen vacancies were not significantly harmful to the electric and optical properties of STO. We concluded that the STO single crystal should have a good tolerance against the damage by the γ-ray irradiation.",

keywords = "Gamma-ray irradiation, Oxygen vacancy, Photoluminescence, SrTiO single crystal",

author = "Lee, \{Y. S.\} and Junhwi Lim and Kim, \{E. Y.\} and Bu, \{Sang Don\}",

note = "Publisher Copyright: {\textcopyright} 2018, The Korean Physical Society.",

year = "2018",

month = nov,

day = "1",

doi = "10.3938/jkps.73.1566",

language = "English",

volume = "73",

pages = "1566--1570",

journal = "Journal of the Korean Physical Society",

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TY - JOUR

T1 - Effect of the Gamma-Ray Irradiation on the Electric and Optical Properties of SrTiO3 Single Crystals

AU - Lee, Y. S.

AU - Lim, Junhwi

AU - Kim, E. Y.

AU - Bu, Sang Don

PY - 2018/11/1

Y1 - 2018/11/1

N2 - We investigated the visible emission property of SrTiO3 (STO) single crystals irradiated with gammy-ray (γ-ray) at various total doses up to 900 kGy. The electric and optical absorption properties of the irradiated STO samples were hardly changed with the γ-ray irradiation, compared with those of un-irradiated STO. In contrast, the visible emission near 550 nm increased with the γ-ray dose increasing. While the development of the visible emission was indicative of the increase of oxygen vacancies inside STO by the γ-ray irradiation, the newly generated oxygen vacancies were not significantly harmful to the electric and optical properties of STO. We concluded that the STO single crystal should have a good tolerance against the damage by the γ-ray irradiation.

AB - We investigated the visible emission property of SrTiO3 (STO) single crystals irradiated with gammy-ray (γ-ray) at various total doses up to 900 kGy. The electric and optical absorption properties of the irradiated STO samples were hardly changed with the γ-ray irradiation, compared with those of un-irradiated STO. In contrast, the visible emission near 550 nm increased with the γ-ray dose increasing. While the development of the visible emission was indicative of the increase of oxygen vacancies inside STO by the γ-ray irradiation, the newly generated oxygen vacancies were not significantly harmful to the electric and optical properties of STO. We concluded that the STO single crystal should have a good tolerance against the damage by the γ-ray irradiation.

KW - Gamma-ray irradiation

KW - Oxygen vacancy

KW - Photoluminescence

KW - SrTiO single crystal

UR - https://www.scopus.com/pages/publications/85057080685

U2 - 10.3938/jkps.73.1566

DO - 10.3938/jkps.73.1566

M3 - Journal article

AN - SCOPUS:85057080685

SN - 0374-4884

VL - 73

SP - 1566

EP - 1570

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 10

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