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Electron paramagnetic resonance and H-1 nuclear magnetic resonance study of Y-doping effect on the hydrogen shallow donors in ZnO nanoparticles

Authors
Lee, Yeon HoLee, Kyu WonJeon, Gi WanLee, Cheol Eui
Issue Date
9월-2019
Publisher
ELSEVIER SCIENCE BV
Keywords
ZnO; Y-doping effect; Electron paramagnetic resonance
Citation
CURRENT APPLIED PHYSICS, v.19, no.9, pp.1015 - 1018
Indexed
SCIE
SCOPUS
KCI
Journal Title
CURRENT APPLIED PHYSICS
Volume
19
Number
9
Start Page
1015
End Page
1018
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/62978
DOI
10.1016/j.cap.2019.05.019
ISSN
1567-1739
Abstract
Hydrogen shallow donors in sol-gel-derived pristine and rare-earth Y-doped ZnO nanoparticles have been investigated by electron paramagnetic resonance (EPR) and high-resolution H-1 nuclear magnetic resonance (NMR). It is shown by EPR measurements that the energy level of the hydrogen shallow donors in the Y-doped ZnO is much deeper (E similar to 174 meV) than in the pristine ZnO (E similar to 75 meV). The temperature-dependent H-1 NMR chemical shift and linewidth measurements of the pristine and the Y-doped ZnO systems indicated that Y-doping effectively modifies the lattice environment and hinders the hydrogen motions in the ZnO nanoparticles.
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