Silver-doped Lithium-Boro-Carbonate Glass: Assessment of Structural and Thermoluminescence Features
DOI:
https://doi.org/10.55640/jsshrf-05-07-14Keywords:
TL, Doping, Silver, GlassAbstract
Three silver (Ag)-doped Lithium-Boro-Carbonate glass samples (hereafter named as LBAg0.2, LBAg0.4 and LBAg0.6) of molar composition 15Li2BO3-84.6H3CO3-xAg (x = 0.2, 0.4 and 0.6 mol%) were prepared by melt-quenching approach and characterized. Results displayed some appreciable changes in the thermoluminescence (TL), thermal and structural behaviors of the glasses due to Ag doping at various levels. Thermally durable (Hurby parameter ~ 0.5) and optically transparent glasses were achieved. XRD and FESEM analyses of the quenched samples verified their corresponding disordered nature and homogeneous morphologies. Three characteristic peaks related to the trigonal and tetrahedral stretching vibration modes of BO3 and BO4 units around 700.55-930.68 and 1072.07 cm-1 were observed in the FTIR spectra, accompanying by the peak shift with increasing Ag contents. DTA results showed the melting, crystallization, and glass transition peak at 700, 500 and 495 0C, respectively. TL measurement of the glasses under Co-60 gamma irradiation exhibited a single intense peak with the highest value of 194°C. LBAg0.4 glass at 50 Gy -ray exposure revealed the maximum TL response and best linearity. The proposed glass system may be valuable for the development of radiation dosimeters.
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