Preparation of Er3+/Yb3+ co-doped zeolite-derived silica glass and its upconversion luminescence property

A novel upconversion luminescence transparent glass has been successfully synthesized from Er3+/Yb3+ co-doped zeolite powder by Spark Plasma Sintering (SPS) method through the order–disorder transition process. XRD was used to detect the order–disorder transition process of each phase after SPS. These zeolite-derived silica glasses showed enhanced upconversion luminescence under the excitation of 980 nm diode laser, which was caused by the change of phonon energy according to the results of Raman spectrum, and the corresponding energy transfer mechanism was also discussed in detail.