Photoluminescence of new red phosphor SrZnO2:Eu |
| |
Authors: | Yuhua Wang Hui Gao |
| |
Institution: | Department of Materials Science, Lanzhou University, Lanzhou 730000, China |
| |
Abstract: | SrZnO2:Eu3+ has been synthesized by solid-state reaction and its photoluminescence in ultraviolet (UV)-vacuum ultraviolet (VUV) range was investigated. The broad bands around 254 nm are assigned to CT band of Eu3+-O2−. With the increasing of Eu3+ concentration, Eu3+ could occupy different sites, which leads to the broadening of CT band. A sharp band is observed in the region of 110-130 nm, which is related to the host absorption. The phosphors emit red luminescence centered at about 616 nm due to Eu3+5D0→7F2 both under 254 and 147 nm, but none of Eu2+ blue emission can be observed. |
| |
Keywords: | SrZnO2:Eu3+ Phosphor UV-VUV |
本文献已被 ScienceDirect 等数据库收录! |
|