Efficient white light-emitting Mg21Ca4Na4(PO4)18: Dy3+, Tb3+, Eu3+ triple-doped glasses: a multipurpose glasses for WLEDs, solar cell efficiency enhancement, and smart windows applications

As a kind of lanthanide-activated luminescent materials, the development of rare-earth-activated luminescent glasses is one of the promising trends in the modern luminescence research. In the proposed work, Dy3+, Tb3+, Eu3+ activated/co-activated/triple-activated Mg21Ca4Na4(PO4)(18) orthophosphate glasses have been prepared by melt quenching technique for the first time. XRD pattern of the proposed glass sample shows amorphous nature, but the most intense peak is get matched with the standard ICSD database of Mg21Ca4Na4(PO4)(18) material. Vibrational feature of the proposed glass sample has been investigated using FTIR analysis. SEM and EDS confirm the morphology and elemental analysis of the asprepared glass. Photoluminescence study of triple-activated Mg21Ca4Na4(PO4)(18) glass sample shows multiple emission peaks under NUV excitations which covers complete white light emission. Other optical properties like UVeVis DRS, the refractive index of the glass and molar refraction of glass sample were investigated. Moreover, this glass sample is crushed homogeneously and coated on solar cell using doctor blade method shows the efficiency of solar cell enhanced by 43.33% than the blank solar cell. These results of the proposed sample prove its worth in the WLEDs, solar cell efficiency enhancement, and smart windows applications. (c) 2022 Elsevier Ltd. All rights reserved.