Title :
Irradiation effects on glasses containing ZnO as emission centers
Author :
Cecilia, A. ; Baccaro, S. ; Chen, G. ; Fang, X. ; Donghui, Z. ; Junbiao, Z. ; Yunxia, Y.
Author_Institution :
ENEA, Rome, Italy
Abstract :
ZnO-based silicate glasses are studied in the present paper. Irradiation resistance of glass samples is tested under the 60Co γ-ray radiation at the doses of 71 and 262 Gy. Ultraviolet and visible transmission spectra of glass samples are compared before and after irradiation treatment. Test results show that radiation damage of ZnO-based glasses increases with dose while the glass with the Al2O3 donor dopants exhibits improved radiation resistance. The latter can be correlated to bandgap broadening effect due to Al2O3 doping in the ZnO-based glass and to the role of Al3+ as the network intermediate to enter partially the tetrahedral structure of silicate glass.
Keywords :
II-VI semiconductors; aluminium compounds; doping; gamma-ray effects; glass; light transmission; photonic band gap; ultraviolet spectra; visible spectra; wide band gap semiconductors; zinc compounds; 71 to 262 Gy; 60Co gamma-ray radiation; Al2O3 donor dopants; ZnO-SiO2-BaO:Al2O3; ZnO-based silicate glasses; bandgap broadening effect; emission centers; irradiation glass resistance; irradiation treatment; radiation damage; radiation dose; tetrahedral structure; ultraviolet transmission spectra; visible transmission spectra; Excitons; Glass; Optical materials; Photonic band gap; Radiation detectors; Semiconductor materials; Temperature; Testing; Thermal resistance; Zinc oxide; Doping; ZnO; radiation damage; silicate glass;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2005.856595
