Spectral Properties of Nanostructured Composite Glass Materials Activated by Yttrium in the Presence of Copper or Bismuth

Composite materials (CMs) based on porous glass matrices activated by yttrium in the presence of copper or bismuth are synthesized. It is established that, depending on the composition, the CM samples exhibit UV, blue-green, red, and infrared luminescence due to the presence of various centers, including Bi 3+ and Cu + ions, F centers in Y 2 O 3 , and molecular ions O_3^ - 2 associated with cation vacancies Y 3+ .