Recent Trends in Chemical and Material Sciences Vol. 2


Study on Nanophosphors with Partially Polymerized SiO\(_4\) Tetrahedra Produced by Evaporation of Ca\(_2\)Y\(_8\)(SiO\(_4\))\(_6\)O\(_2\): Eu Polycrystals

Recent Trends in Chemical and Material Sciences Vol. 2, 4 August 2021 , Page 98-106
https://doi.org/10.9734/bpi/rtcams/v2/3339F

Abstract

Nanophosphors in the amorphous state were produced for the first time by pulsed electron beam evaporation of micrometer-sized polycrystalline phosphors of the composition Ca2Y8(SiO4)6O2: Eu. It was found that the Raman spectrum is modified and the forbidden band width of the samples increases when the particle size lowers from micro- to nanodimensional state. The spectral luminescent characteristics in polycrystalline and amorphous states have been examined. It was established that during the transition to nanoamorphous state the phosphors change their photoluminescence color from red-orange (Eu3+) to blue (Eu2+).  

Keywords:
  • Nanophosphor
  • microscopy
  • raman spectra
  • luminescence
  • Eu\(^{3 }\)
  • Eu\(^{2 }\)

How to Cite

Zuev, M. G. ., Il’ves, V. G. ., Sokovnin, S. Y. ., & Zhuravleva, E. Y. . (2021). Study on Nanophosphors with Partially Polymerized SiO\(_4\) Tetrahedra Produced by Evaporation of Ca\(_2\)Y\(_8\)(SiO\(_4\))\(_6\)O\(_2\): Eu Polycrystals. Recent Trends in Chemical and Material Sciences Vol. 2, 98–106. https://doi.org/10.9734/bpi/rtcams/v2/3339F