Author(s) Details:
Ch. Ravi Shankar Kumar,
Department of Physics, School of Science, GITAM University, Visakhapatnam - 530045, India.
Please see the link here: https://stm.bookpi.org/NTPSR-V5/article/view/7168
Pulsed electron beam evaporation of micrometer-sized polycrystalline phosphors of the composition Ca2Y8(SiO4)6O2: Eu generated nanophosphors in the amorphous form for the first time. When particle size decreases from micro to nanodimensional, the Raman spectra is altered, and the prohibited band width of the samples rises. The features of spectrum luminescence in polycrystalline and amorphous states have been investigated. It was discovered that when phosphors move to a nanoamorphous state, their photoluminescence hue changes from red-orange (Eu3+) to blue (Eu2+).
Pulsed electron beam evaporation of micrometer-sized polycrystalline phosphors of the composition Ca2Y8(SiO4)6O2: Eu generated nanophosphors in the amorphous form for the first time. When particle size decreases from micro to nanodimensional, the Raman spectra is altered, and the prohibited band width of the samples rises. The features of spectrum luminescence in polycrystalline and amorphous states have been investigated. It was discovered that when phosphors move to a nanoamorphous state, their photoluminescence hue changes from red-orange (Eu3+) to blue (Eu2+).