TY - JOUR
T1 - Transmuted isotopes doped in neutron-irradiated ZnO thin films
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.
KW - Capture cross section
KW - Isotope
KW - Neutron-transmutation-doping
KW - Photoluminescence
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=1842790515&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2003.11.085
DO - 10.1016/j.nimb.2003.11.085
M3 - Article
AN - SCOPUS:1842790515
SN - 0168-583X
VL - 217
SP - 429
EP - 434
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 3
ER -