Dy3+-activated glasses with composition 15Li2O - 25BaO - (40-x)B2O3 – 20P2O5 – xDy2O3, where x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0 mol%, were synthesised using melt quenching technique for studying their physical, structural, optical, and thermoluminescence properties. The physical attributes were assessed using density and molar volume values. X-ray diffraction proved amorphous nature of glasses while Fourier transform infrared spectroscopy revealed the presence of structural groups. Optical absorption spectra with wavelengths spanning from 300 to 1200 nm were used to examine different optical properties. With an aim to study dosimetric properties, the glasses were irradiated with various gamma doses (50 Gy to 10 kGy). Chen's peak shape approach was used to establish kinetic parameters of glow curves in 325–500 K temperature range. The results suggest that due to high thermoluminescence efficiency, the glass sample with 0.8 mol% of Dy3+ concentration is best suitable for the dosimetric applications.