Abstract
Zinc borosilicate glass is studied as a scintillating material. Glass samples with zinc oxide concentrations as high as 60mol% were prepared successfully without deteriorating the glass-forming ability. Different post-preparation thermal treatments were carried out on the samples in the temperature range of 300–700°C and for 3–8h duration. A dominant emission band was observed near 400nm in the luminescence spectra with the excitation peak near 260nm. Photoluminescence decay kinetics shows dominant decay times of about 7–10 and 170–200ns with a weak tail down to several tens of microseconds. Thermal treatment was found to enhance the 400nm emission intensity several times with respect to an as-prepared sample and X-ray diffraction analysis confirmed the presence of ZnO crystallized phase in heavily annealed glass samples.
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