Sol-gel silica glasses with nanoparticles of copper selenide: synthesis, optics and structure

摘要

The silica glasses with copper selenide naoparticles were fabricated by the sol-gel technique. The samples were characterized with transmission electron microscopy, Rutherford backscattering spectroscopy and optical absorption. The composition of nanoparticles is close to Cu_2Se stoichiometry and can be varied under tuning of the preparation steps. These glasses exhibit the new features in visible and IR ranges.