Yb3+/Tm3+/Er3+共掺杂透明氧氟碲酸盐玻璃陶瓷的上转换增强发光
摘要
Optically transparent Er 3+ /Tm 3+ /Yb 3+ tri-doped oxyfluoride tellurite based nano-crystallized glass ceramics with the batching composition of 73TeO 2 -15ZnO-7ZnF 2 -3YF 3 -1.5YbF 3 -0.3ErF 3 -0.2TmF 3 (mol%) is prepared by a conventional melting quenching and the subsequent heat treatment processes. The sizes of grown nano-crystals in glass matrix appear to be smaller than 100 nm from the scanning electron microscope measurement. Visible up-conversion luminescence of the as melted glass and glass ceramics is investigated. The three-color up-conversion luminescence intensities by 980-nm pumping are increased significantly due to the heat treatment, and the blue intensity increases with a higher magnitude than other wavelengths after heat treatment.