Scientists Have Created Original Nanoluminescent Phosphors

10:11, August 13, 2021

Physicists obtained new substances by electron beam evaporation

A group of scientists from the Ural Branch of the Russian Academy of Sciences and Ural Federal University obtained original nanophosphors in the amorphous state for the first time. The new substances were created by electron beam evaporation of microluminophores of the composition Ca2Y8(SiO4)6O2: Eu. In other words, scientists have developed a method of obtaining new complex silicate nanoluminescence phosphors containing europium ions. In addition, they determined the spectral and luminescent characteristics of the obtained luminophores. The results of the researchers' work are presented in the monograph Recent Trends in Chemical and Material Sciences Vol. 2 (published by B P International).

"We investigated the spectral-luminescent properties of samples in polycrystalline and amorphous states. We found that during the transition from the micro- to nanoscale state, the phosphors change their photoluminescence color from red-orange to blue. Thus, silicate phosphors acquire new properties when transitioning to the nanoamorphic state," Mikhail Zuev, professor at the Department of Physical and Colloidal Chemistry at Ural Federal University and chief researcher at the Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, explains the essence of the research.

Note that reducing the size of phosphor particles from the micro- to nanoscale state leads to new properties that differ from bulk samples. Nanoluminescent phosphors can be used in LED devices. Nanopowders can be used to design new phosphors, multifunctional devices for luminescence imaging measurements of thermodynamic, mechanical and other parameters in various systems. In addition, they are promising in the development of displays, for visualization of biological objects, data storage and other areas.