•  
  •  
 
CHEMISTRY AND CHEMICAL ENGINEERING

Abstract

The aim of the study was to develop microwave synthesis of luminescent yttrium oxide powders doped with ytterbium and erbium ions (Y2O3:Yb3+, Er3+) in the process of homogeneous precipitation from a reaction mixture of yttrium, ytterbium and erbium chlorides. The characteristics of the obtained powders were studied by X-ray diffraction, scanning and passing electron microscopy, differential thermal analysis, IR spectroscopy and photoluminescence under IR excitation. From luminescence spectra of Y2O3:Yb3+, Er3+ samples obtained by excitation with an IR laser at a wavelength of 975 nm, it can be concluded that when the calcination temperature of the sample’s changes, the radiation color of powders changes from green to red, which can be used to produce phosphors of different colors.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.