| Summary: | In this study, Er2-xYbxZr2O7 (x = 0–2.0) transparent ceramics were successfully prepared by vacuum sintering at 1850 °C for 6 h. The phase composition, microstructure evolution and optical properties of the as-prepared ceramics were investigated. The powders and ceramics demonstrate a single-phase defective fluorite structure. All the ceramics exhibit excellent optical performance and the highest in-line transmittance can reach to 76% at 1100 nm when x = 1.0. The upconversion and infrared emission under 980 nm exciting were measured and discussed as well. The Er2-xYbxZr2O7 transparent ceramics exhibit efficient upconversion photoluminescence emission in the visible wavelength region at 524 nm, 541 nm, 650 nm and downconversion emission at 1530 nm, 1565 nm, 1646 nm.
|
|---|