Dysprosium doped $\text{ZnO}–{\text{B}}_2{\text{O}}_3–{\text{P}}_2{\text{O}}_5$ (ZBP) glasses were prepared by a conventional melt quenching technique in order to study the luminescent properties and their utility for white light emitting diodes (LEDs). X-ray diffraction spectra revealed the amorphous nature of the glass sample. The present glasses were characterized by infrared and Raman spectra to evaluate the vibrational features of the samples. The emission and excitation spectra were reported for the ZBP glasses. Strong blue (484 nm) and yellow (574 nm) emission bands were observed upon various excitations. These two emissions correspond to the ${{}^{4}F}_{9/2}\to {{}^{6}H}_{15/2}$ and ${{}^{4}F}_{9/2}\to {{}^{6}H}_{13/2}$ transitions of ${\text{Dy}}^{3+}$ ions, respectively. Combination of these blue and yellow bands gives white light to the naked eye. First time, it was found that $\text{ZnO}–{\text{B}}_2{\text{O}}_3–{\text{P}}_2{\text{O}}_5$ glasses efficiently emit white light under 400 and 454 nm excitations, which are nearly match with the emissions of commercial GaN blue LEDs and InGaN LED, respectively. CIE chromaticity coordinates also calculated for ${\text{Dy}}^{3+}$ : ZBP glasses to evaluate the white light emission.

High-quality and monodisperse CaMoO₄:Eu³⁺,M⁺ (M = Li, Na, K) microspheres have been synthesized with the assistance of poly-(diallyldimethylammonium chloride) (PDDA) via a facile coprecipitation hydrothermal route.