Luminescent properties of Eu~(2+) in AlON, SiAlON, Ca-SiAlON oxynitrides

摘要

The X-ray luminescence (XRL) properties of γ-AlON (γ-Al_5O_6N), β-SiAlON (Si+_(6-n)AlnOnN_(8-n), where n = 2 and 3) and Ca-α-SiAlON (Ca_(m/2)Si_(12-(m+n))Al_(m+n)OnN_(16-n)) oxynitride samples doped by Eu~(2+) were investigated. The strong correlation of luminescence spectra parameters of Eu~(2+) luminescence centers in dependence of oxynitride samples composition is observed. With fitting procedure the composition of XRL spectra with complex profile of investigated oxynitride samples of γ-AlON, β-SiAlON and Ca-α-SiAlON was identified and discussed.