TY - JOUR
T1 - Influence of 1.25 MeV gamma rays on optical and luminescent features of Er
3+
doped zinc bismuth borate glasses
AU - Hegde, Vinod
AU - Prabhu, Nimitha
AU - Wagh, Akshatha
AU - Sayyed, M. I.
AU - Agar, O.
AU - Kamath, Sudha D.
PY - 2019/3/1
Y1 - 2019/3/1
N2 -
Glasses based on 10ZnO-5Na
2
CO
3
-10Bi
2
O
3
-(75-x)B
2
O
3
-xEr
2
O
3
with x = (0, 0.1, 0.3, 0.5, 0.7, 1.0) mol%, were synthesized by melt quenching technique and characterized through optical and luminescent features, before and after irradiating them with high energy (1.25 MeV) gamma rays. The amorphous nature of the glasses and the presence of various structural groups like BiO
6
, BO
3
and BO
4
were confirmed through XRD and FTIR measurements. Optical properties were studied through UV–VIS–NIR absorption spectra. Decrease in band gap values after gamma irradiation confirmed the creation of color centers in the glass matrix. Thermally stimulated Luminescence (TL) and Optically Stimulated Luminescence (OSL) spectroscopy techniques were used to study the trap centers induced after irradiation. The number of peaks and their trapping parameters were assessed using the Computerized Glow Curve Deconvolution (CGCD). The linearity in dose response proves their suitability in usage for dosimeter and shields in radiation zones within the dose.
AB -
Glasses based on 10ZnO-5Na
2
CO
3
-10Bi
2
O
3
-(75-x)B
2
O
3
-xEr
2
O
3
with x = (0, 0.1, 0.3, 0.5, 0.7, 1.0) mol%, were synthesized by melt quenching technique and characterized through optical and luminescent features, before and after irradiating them with high energy (1.25 MeV) gamma rays. The amorphous nature of the glasses and the presence of various structural groups like BiO
6
, BO
3
and BO
4
were confirmed through XRD and FTIR measurements. Optical properties were studied through UV–VIS–NIR absorption spectra. Decrease in band gap values after gamma irradiation confirmed the creation of color centers in the glass matrix. Thermally stimulated Luminescence (TL) and Optically Stimulated Luminescence (OSL) spectroscopy techniques were used to study the trap centers induced after irradiation. The number of peaks and their trapping parameters were assessed using the Computerized Glow Curve Deconvolution (CGCD). The linearity in dose response proves their suitability in usage for dosimeter and shields in radiation zones within the dose.
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U2 - 10.1016/j.rinp.2019.02.003
DO - 10.1016/j.rinp.2019.02.003
M3 - Article
AN - SCOPUS:85061289162
SN - 2211-3797
VL - 12
SP - 1762
EP - 1769
JO - Results in Physics
JF - Results in Physics
ER -