SPECTRAL INVESTIGATIONS OF THERMALLY STABLE RARE EARTH EMBEDDED ZINC BOROPHOSPHATE GLASSES FOR OPTOELECTRONIC APPLICATIONS

Abstract

Zinc borophosphate (NBZPB) glasses embedded with various Pr3+ ion concentrations were formed through a melt quenching procedure. Thermal, structural, optical, and photoluminescent (PL) features of those glasses were thoroughly studied in detail. Differential scanning calorimetry (DSC) analysis was employed to assess the thermal stability of the glass host composition. X-ray diffraction (XRD) profiles were utilized to verify the non-crystalline nature of the formed glasses. The optical qualities of the formed NBZPBPr glass matrices were computed with the help of the optical absorption profiles. Furthermore, when stimulated with blue radiation of 446 nm wavelength, the emission profiles of the formed NBZPBPr glasses exhibit an intense orange-red emission (602 nm) in the visible region. The chromaticity characteristics, including color coordinates (x, y), color purity (CP) and correlated color temperature (CCT), of the optimized glass were examined under selected blue excitation. Moreover, the temperature dependent photoluminescence (TDPL) analysis demonstrated that the titled glass matrix has excellent thermal stability. The findings mentioned above confirm that the formed NBZPBPr glasses could be a potential candidate for optoelectronic applications.