Role of localized phonon vibration in luminescence performance of Pr doped Ba(Mg_(0.28)Zr_(0.16)Ta_(0.56))O_(3)transparent ceramics  

作　　者：Zihao Wang Zicheng Wen Fei Tang Kangzhen Tian Chuandong Zuo Lizhen Zhang 

机构地区：[1]Jiangsu Key Laboratory of Advanced Laser Materials and Devices,School of Physics and Electronic Engineering,Jiangsu Normal University,Xuzhou 221116,China [2]Songshan Lake Materials Laboratory.Dongguan 523808,China

出　　处：《Journal of Rare Earths》2022年第11期1728-1733,I0003,共7页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China of China(51902144);the Natural Science Foundation of Jiangsu Province(CN)(BK20191003)。

摘　　要：Oxygen-assisted high temperature solid-state reaction approach was employed for the fabrication of Pr activated Ba(Mg_(0.28)Zr_(0.16)Ta_(0.56))O_(3)transparent ceramic phosphor.Retiveld refinement of X-ray diffraction pattern was carried out to reveal the lattice parameters and crystal structural information.Under the blue-light excitation ofλ=473 nm,the phosphor exhibits a sharp intense red emission centered at645 nm,accompanied by several other weak peaks.PL evolution with temperature shows a significant luminescence quenching behavior,and the underlying multi-phonon interaction with optical center is revealed by proposing an unprecedent theoretical calculation work.Such a phonon effect is further confirmed from the red-shift of peak position with temperature,and the involved phonon energy of50.7 meV is determined from Raman scattering measurement.More interestingly,the fitted results of transient-state PL spectra show a fluctuation of luminescence lifetime at various temperatures,further indicating a significant effect of phonon vibration in the system.

关 键 词：Luminescence quenching Phonon vibration Oxygen-assisted sintering PBMZT transparent ceramics Rare earths 

分 类 号：TQ174.758.23[化学工程—陶瓷工业]