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 presented in the present paper. Irradiation resistance of glass samples is tested under the gamma-ray radiation at the doses of 71 and 262 Gy. Ultraviolet and visible transmitting spectra of glass samples are compared before and after irradiation treatment. Test results show that irradiation damage on ZnO containing glasses increases with dose while the glass with the Al2O3 donor dopants exhibits much improved irradiation resistance. The latter can be correlated to band-gap broadening effect due to Al2O3 doping in the ZnO containing glass and to the role of Al3+ as the network intermediate to enter partially the tetrahedral structure of silicate glass.
Keywords :
aluminium compounds; gamma-ray effects; glass; glass structure; semiconductor doping; silicon compounds; ultraviolet spectra; visible spectra; zinc compounds; Al2O3 donor dopants; ZnO based silicate glasses; ZnOSiO2:Al2O3; band-gap broadening effect; gamma-ray radiation; irradiation damage; irradiation resistance; silicate glass; ultraviolet transmitting spectra; visible transmitting spectra; Aluminum oxide; Glass; Inorganic materials; Ionizing radiation; Materials science and technology; Optical materials; Photonic band gap; Telephony; Testing; Zinc oxide;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2004 IEEE
Conference_Location :
Rome
Print_ISBN :
0-7803-8700-7
Electronic_ISBN :
1082-3654
DOI :
10.1109/NSSMIC.2004.1462641
