Color tunability of Sm³⁺ doped antimony–phosphate glass phosphors showing broadband fluorescence

Sm³⁺ doped multicomponent antimony phosphate (MSP) luminescent glasses were prepared and tunable white fluorescence has been investigated. Broad visible emission depending on excitation wavelength is validated to be dominated by discrepant Sb³⁺ emitting centers. Group of narrow emissions from Sm³⁺ is beneficial to adding yellow and red components in Sm³⁺ doped MSP glasses, which is strengthened by effective energy transfer from Sb³⁺ to Sm³⁺. Excitation wavelength selection and Sm³⁺ concentration adjustment are two feasible routes to optimize luminescence color in Sm³⁺ doped MSP glasses and the color tunability of fluorescence indicates that amorphous Sm³⁺ doped MSP glass phosphors possess potential for ideal white light devices.