Electron paramagnetic resonance and 1H nuclear magnetic resonance study of Y-doping effect on the hydrogen shallow donors in ZnO nanoparticles
Electron paramagnetic resonance and 1H nuclear magnetic resonance study of Y-doping effect on the hydrogen shallow donors in ZnO nanoparticles
- 주제(키워드) ZnO Y-doping effect Electron paramagnetic resonance
- 발행기관 한국물리학회
- 발행년도 2019
- 총서유형 Journal
- DOI http://dx.doi.org/10.1016/j.cap.2019.05.019
- KCI ID ART002503622
- 본문언어 영어
초록/요약
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 1H 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∼174 meV) than in the pristine ZnO (E∼75 meV). The temperature-dependent 1H 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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