Structural investigation and red emission intensity enhancement in Sm3+/Eu3+-doped/co-doped KSrPO4 phosphors: effect of charge compensation

Abstract

At the realm of luminescence in the present period, phosphates are the fresh and developing candidates. In the suggested study work, citric acid is used as a fuel to create Sm³⁺- and Eu³⁺-activated/co-activated KSrPO₄ phosphor by a simple combustion process. Through the use of XRD and Rietveld refinement, the phase identity and crystal structure of produced phosphor are examined. SEM is used to examine the morphological study, elemental analysis and elemental analysis of the sample together with the planned phosphor. The suggested phosphors’ vibrational properties were confirmed through the use of FTIR. The suggested phosphor’s charge compensation effect and photochromic qualities demonstrate three instantaneous emission peaks in the visible range, which results in the emission of white light. The produced phosphor is a viable option for white light-emitting diodes and display applications, as confirmed by all these findings.