Transmuted isotopes doped in neutron-irradiated ZnO thin films

Hyunsuk Kim; Kwangsue Park; Byungdon Min; Jong Soo Lee; Kyoungah Cho; Sangsig Kim; Hyon Soo Han; Soon Ku Hong; Takafumi Yao

doi:10.1016/j.nimb.2003.11.085

Transmuted isotopes doped in neutron-irradiated ZnO thin films

Hyunsuk Kim, Kwangsue Park, Byungdon Min, Jong Soo Lee, Kyoungah Cho, Sangsig Kim, Hyon Soo Han, Soon Ku Hong, Takafumi Yao

Department of Energy and Science and Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Transmuted isotopes doped in neutron-irradiated ZnO thin films were first identified on the basis of nuclear reactions of ZnO with thermal neutrons, and their existence in the ZnO thin films was then confirmed by photoluminescence (PL). ZnO thin films were irradiated by neutron beams at room temperature. The ZnO films consist of eight constituent (Zn and O) isotopes, of which four isotopes are transmutable by neutron-irradiation; ⁶⁴Zn, ⁶⁸Zn, ⁷⁰Zn and ¹⁸O were expected to be transmuted into ⁶⁵Cu, ⁶⁹Ga, ⁷¹Ga and ¹⁹F, respectively. The concentrations of these transmuted isotopes were estimated in this study. The neutron-irradiated ZnO thin films were characterized by PL. In the PL spectra, the Cu-related PL peaks were observed, but the Ga- or F-associated PL peaks were absent. This observation confirms the existence of ⁶⁵Cu in the ZnO and does not the formation of the other three. The reason for the absence of the Ga- or F-associated PL peaks is discussed in this paper.

Original language	English
Pages (from-to)	429-434
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	217
Issue number	3
DOIs	https://doi.org/10.1016/j.nimb.2003.11.085
State	Published - May 2004

Bibliographical note

Funding Information:
This work was supported by the '03 Nuclear R&D Program and National R&D project for Nano Science and Technology.

Keywords

Capture cross section
Isotope
Neutron-transmutation-doping
Photoluminescence
ZnO

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10.1016/j.nimb.2003.11.085

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title = "Transmuted isotopes doped in neutron-irradiated ZnO thin films",

abstract = "Transmuted isotopes doped in neutron-irradiated ZnO thin films were first identified on the basis of nuclear reactions of ZnO with thermal neutrons, and their existence in the ZnO thin films was then confirmed by photoluminescence (PL). ZnO thin films were irradiated by neutron beams at room temperature. The ZnO films consist of eight constituent (Zn and O) isotopes, of which four isotopes are transmutable by neutron-irradiation; 64Zn, 68Zn, 70Zn and 18O were expected to be transmuted into 65Cu, 69Ga, 71Ga and 19F, respectively. The concentrations of these transmuted isotopes were estimated in this study. The neutron-irradiated ZnO thin films were characterized by PL. In the PL spectra, the Cu-related PL peaks were observed, but the Ga- or F-associated PL peaks were absent. This observation confirms the existence of 65Cu in the ZnO and does not the formation of the other three. The reason for the absence of the Ga- or F-associated PL peaks is discussed in this paper.",

keywords = "Capture cross section, Isotope, Neutron-transmutation-doping, Photoluminescence, ZnO",

author = "Hyunsuk Kim and Kwangsue Park and Byungdon Min and Lee, {Jong Soo} and Kyoungah Cho and Sangsig Kim and Han, {Hyon Soo} and Hong, {Soon Ku} and Takafumi Yao",

note = "Funding Information: This work was supported by the '03 Nuclear R&D Program and National R&D project for Nano Science and Technology. ",

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doi = "10.1016/j.nimb.2003.11.085",

language = "English",

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AU - Kim, Hyunsuk

AU - Park, Kwangsue

AU - Min, Byungdon

AU - Lee, Jong Soo

AU - Cho, Kyoungah

AU - Kim, Sangsig

AU - Han, Hyon Soo

AU - Hong, Soon Ku

AU - Yao, Takafumi

N1 - Funding Information: This work was supported by the '03 Nuclear R&D Program and National R&D project for Nano Science and Technology.

PY - 2004/5

Y1 - 2004/5

N2 - Transmuted isotopes doped in neutron-irradiated ZnO thin films were first identified on the basis of nuclear reactions of ZnO with thermal neutrons, and their existence in the ZnO thin films was then confirmed by photoluminescence (PL). ZnO thin films were irradiated by neutron beams at room temperature. The ZnO films consist of eight constituent (Zn and O) isotopes, of which four isotopes are transmutable by neutron-irradiation; 64Zn, 68Zn, 70Zn and 18O were expected to be transmuted into 65Cu, 69Ga, 71Ga and 19F, respectively. The concentrations of these transmuted isotopes were estimated in this study. The neutron-irradiated ZnO thin films were characterized by PL. In the PL spectra, the Cu-related PL peaks were observed, but the Ga- or F-associated PL peaks were absent. This observation confirms the existence of 65Cu in the ZnO and does not the formation of the other three. The reason for the absence of the Ga- or F-associated PL peaks is discussed in this paper.

AB - Transmuted isotopes doped in neutron-irradiated ZnO thin films were first identified on the basis of nuclear reactions of ZnO with thermal neutrons, and their existence in the ZnO thin films was then confirmed by photoluminescence (PL). ZnO thin films were irradiated by neutron beams at room temperature. The ZnO films consist of eight constituent (Zn and O) isotopes, of which four isotopes are transmutable by neutron-irradiation; 64Zn, 68Zn, 70Zn and 18O were expected to be transmuted into 65Cu, 69Ga, 71Ga and 19F, respectively. The concentrations of these transmuted isotopes were estimated in this study. The neutron-irradiated ZnO thin films were characterized by PL. In the PL spectra, the Cu-related PL peaks were observed, but the Ga- or F-associated PL peaks were absent. This observation confirms the existence of 65Cu in the ZnO and does not the formation of the other three. The reason for the absence of the Ga- or F-associated PL peaks is discussed in this paper.

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KW - Neutron-transmutation-doping

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Transmuted isotopes doped in neutron-irradiated ZnO thin films

Abstract

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Keywords

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