Thermoluminescence properties of ZnO and ZnO:Yb nanophosphors
Abstract
ZnO and ZnO:Yb thermoluminescence nanophosphors have been developed and tested under beta radiation. Spherical nanoparticles of sizes ranging from 130to1200nm were prepared through a glycol mediated chemical synthesis. The Yb doping had a thermoluminescence quenching effect compared to undoped ZnO. The 5% Yb concentration produced a low fading, a single thermoluminescence glow peak structure, and a dose linearity behavior adequate for thermoluminescence dosimetry applications. The ZnO:Yb nanophosphor has a great potential as a dosimeter for monitoring in ionizing radiation fields.
- Publication:
-
Applied Physics Letters
- Pub Date:
- October 2006
- DOI:
- Bibcode:
- 2006ApPhL..89r3118P
- Keywords:
-
- 78.60.Kn;
- 78.67.Bf;
- 61.72.Vv;
- 61.80.Fe;
- 61.82.Fk;
- Thermoluminescence;
- Nanocrystals and nanoparticles;
- Doping and impurity implantation in III-V and II-VI semiconductors;
- Electron and positron radiation effects;
- Semiconductors