Structural and luminescence studies on Eu3+: B2O3-Li2O-MO-LiF (M=Ba, Bi2, Cd, Pb, Sr2 and Zn) glasses

► The bonding parameter studies reveal the covalent nature of prepared glasses. ► Higher R and Ω2 confirms the hypersensitive nature/higher asymmetry of the glasses. ► Higher σPE values of the Eu:ZnLFB glass lead to give high optical gain. ► Difference in τexp and τR is due to the presence of OH group and nonradiative decay. ► Eu:ZnLFB glass possess higher σPE, βR and η potential for red laser applications.