Change of photoluminescence property of ferroelectric compounds with the gamma-ray irradiation

Junhwi Lim; Y. S. Lee; Sun A. Yang; Gi Ppeum Choi; Sang Don Bu

doi:10.1016/j.jlumin.2017.04.030

Change of photoluminescence property of ferroelectric compounds with the gamma-ray irradiation

Junhwi Lim
, Y. S. Lee^*
, Sun A. Yang
, Gi Ppeum Choi
, Sang Don Bu

^*Corresponding author for this work

Department of Physics

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

11 Scopus citations

Abstract

We investigated the emission properties of Bi_3.25La_0.75Ti₃O₁₂ polycrystals and (K_0.5Na_0.5)(Mn_0.005Nb_0.995)O₃ thin films with strong gamma (γ)-ray irradiation by using temperature dependent photoluminescence spectroscopy. At the lowest temperatures, sizable visible emissions were identified for the γ-ray irradiated samples as well as un-irradiated ones. In both kinds of compounds, the visible emission intensity tended to be increased without changing the spectral shape, as the γ-ray dose increased. This indicates that the γ-ray irradiation should increase all kinds of already-existing defects evenly, without preferring the formation of some particular type of defect.

Original language	English
Pages (from-to)	188-192
Number of pages	5
Journal	Journal of Luminescence
Volume	188
DOIs	https://doi.org/10.1016/j.jlumin.2017.04.030
State	Published - 2017.08.1

Keywords

BLT
Gamma-ray irradiation
KNMN
Photoluminescence

Quacquarelli Symonds(QS) Subject Topics

Chemistry
Physics & Astronomy
Biological Sciences

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10.1016/j.jlumin.2017.04.030

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@article{50f8f02106384f9087d28e52845f3f10,

title = "Change of photoluminescence property of ferroelectric compounds with the gamma-ray irradiation",

abstract = "We investigated the emission properties of Bi3.25La0.75Ti3O12 polycrystals and (K0.5Na0.5)(Mn0.005Nb0.995)O3 thin films with strong gamma (γ)-ray irradiation by using temperature dependent photoluminescence spectroscopy. At the lowest temperatures, sizable visible emissions were identified for the γ-ray irradiated samples as well as un-irradiated ones. In both kinds of compounds, the visible emission intensity tended to be increased without changing the spectral shape, as the γ-ray dose increased. This indicates that the γ-ray irradiation should increase all kinds of already-existing defects evenly, without preferring the formation of some particular type of defect.",

keywords = "BLT, Gamma-ray irradiation, KNMN, Photoluminescence",

author = "Junhwi Lim and Lee, \{Y. S.\} and Yang, \{Sun A.\} and Choi, \{Gi Ppeum\} and Bu, \{Sang Don\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = aug,

day = "1",

doi = "10.1016/j.jlumin.2017.04.030",

language = "English",

volume = "188",

pages = "188--192",

journal = "Journal of Luminescence",

issn = "0022-2313",

}

TY - JOUR

T1 - Change of photoluminescence property of ferroelectric compounds with the gamma-ray irradiation

AU - Lim, Junhwi

AU - Lee, Y. S.

AU - Yang, Sun A.

AU - Choi, Gi Ppeum

AU - Bu, Sang Don

PY - 2017/8/1

Y1 - 2017/8/1

N2 - We investigated the emission properties of Bi3.25La0.75Ti3O12 polycrystals and (K0.5Na0.5)(Mn0.005Nb0.995)O3 thin films with strong gamma (γ)-ray irradiation by using temperature dependent photoluminescence spectroscopy. At the lowest temperatures, sizable visible emissions were identified for the γ-ray irradiated samples as well as un-irradiated ones. In both kinds of compounds, the visible emission intensity tended to be increased without changing the spectral shape, as the γ-ray dose increased. This indicates that the γ-ray irradiation should increase all kinds of already-existing defects evenly, without preferring the formation of some particular type of defect.

AB - We investigated the emission properties of Bi3.25La0.75Ti3O12 polycrystals and (K0.5Na0.5)(Mn0.005Nb0.995)O3 thin films with strong gamma (γ)-ray irradiation by using temperature dependent photoluminescence spectroscopy. At the lowest temperatures, sizable visible emissions were identified for the γ-ray irradiated samples as well as un-irradiated ones. In both kinds of compounds, the visible emission intensity tended to be increased without changing the spectral shape, as the γ-ray dose increased. This indicates that the γ-ray irradiation should increase all kinds of already-existing defects evenly, without preferring the formation of some particular type of defect.

KW - BLT

KW - Gamma-ray irradiation

KW - KNMN

KW - Photoluminescence

UR - https://www.scopus.com/pages/publications/85018638208

U2 - 10.1016/j.jlumin.2017.04.030

DO - 10.1016/j.jlumin.2017.04.030

M3 - Journal article

AN - SCOPUS:85018638208

SN - 0022-2313

VL - 188

SP - 188

EP - 192

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Change of photoluminescence property of ferroelectric compounds with the gamma-ray irradiation

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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