Effect of Sc Substitution for Al on the Optical Properties of Transparent Ce:YSAG Ceramics
Abstract:Transparent Ce:YAG (Ce:Y3Al5O12) and Ce:YSAG (Ce:Y3ScxAl5−xO12) ceramics have been successfully fabricated using Sc3+ to substitute for Al3+ in Ce:YAG. The effect of Sc substitution on the luminescent properties of Ce:YAG has been investigated. At the substitution level of 20 at.% of Sc3+ for Al3+, the emission intensity of Ce:YSAG is the highest. Meanwhile, the doping of Sc into Ce:YAG lattice broadened both the absorption and emission bands, which is believed to be due to the inhomogeneous broadening of the 5d energy level of Ce3+ caused by the Sc3+ substitution.
Document Type: Research Article
Affiliations: Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
Publication date: 2008-07-01