Tm3+/Tb3+/Mn2+ tri-doped phosphate glass ceramic for enhanced white-light-emitting material

Abstract For developing the white-light-emitting (WLE) material, we prepared Tm3+/Tb3+/Mn2+ tri-doped phosphate glass and glass ceramic samples. At 360 nm ultraviolet light excitation, the colors of the luminescence of the glass and glass ceramic samples are white. The CIE chromaticity coordinates (X = 0.324, Y = 0.335) of the emission from the glass ceramic are close to the standard white-light illumination (0.333, 0.333). The intensity of the fluorescence in the glass ceramic is approximately 20 times stronger than that in the glass.