Fabrication and upconversion luminescence properties of Er:SrF2 transparent ceramics compared with Er:CaF2 |
| |
Authors: | Yu Yang Zhiwei Zhou Bingchu Mei Yongqiang Zhang Xinwen Liu |
| |
Abstract: | SrF2 transparent ceramic is a promising upconversion material due to the low phonon energy. The effect of different sintering temperatures on Er:SrF2 transparent ceramics was investigated. The suitable sintering temperature for Er:SrF2 transparent ceramics was 900 °C by hot-pressed sintering in this study. High quality of Er:SrF2 transparent ceramics with different doping concentrations were obtained. The upconversion luminescence spectra and decay behavior were compared between Er:SrF2 and Er:CaF2 transparent ceramics with different Er3+ doping concentration. The green emission of 5 at.% Er:SrF2 ceramic was much stronger than that of 5 at.% Er:CaF2 ceramic, while the red emission of Er:SrF2 ceramic was almost the same as that of Er:CaF2 ceramic. The upconversion luminescence lifetime of Er:SrF2 transparent ceramics was longer than that of Er:CaF2.All the results indicated Er:SrF2 transparent ceramics was a candidate for green fluorescent upconversion materials. |
| |
Keywords: | Transparent ceramic Hot-pressed sintering Upconversion Lifetime |
本文献已被 ScienceDirect 等数据库收录! |