Luminescence Properties of <scp> <scp>Tb–Eu</scp> </scp> Co‐Doped Aluminosilicate and Zinc Silicate Glasses

Abstract

In this article, we report the luminescent properties and energy transfer behavior of Tb and Eu in aluminosilicate and zinc silicate glasses. Both glass systems exhibit a combination of blue, green, and red emissions. The optical absorption spectra provide an evidence of the reduction reaction of Eu 3+ ions in aluminosilicate glasses and it proves that the aluminosilicate glasses may be more promising for producing white light due to the existing blue light emission of Eu 2+ ions. The emission and lifetime measurements reveal the energy transfer is from Tb 3+ ( 5 D 4 ) to Eu 3+ ( 5 D 1 ) by the quadrupole–quadrupole interaction between these two ions. The calculated energy transfer efficiency is up to 32.1% in zinc silicate glasses.