Microstructures and Luminescent Properties of Sm3+-Doped KSr2Nb5O15 Prepared by Molten Salt Synthesis Method

Shuyao Cao, Xiaoying Feng, Qian Chen, Yiting Guo, Duo Teng, Yuhang Yang, Linqing Liao, Yiwei Liu, Jie Xu, Feng Gao

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摘要

To explore the excellent luminescent activator and associated luminescent behavior for the development of the potential coupling effect about luminescent and photochromic properties of novel KSr2Nb5O15 materials, the Sm3+-doped KSr2Nb5O15 powders have been prepared using the molten salt method. The effects of Sm3+ doping on the phases, morphologies, bonding vibrations, and luminescent properties have been investigated. The results show that the Sm3+-doped KSr2Nb5O15 powders can emit orange light (main peak wavelength around 601 nm) under the blue light (407 nm) excitation, and the optimal doping concentration of Sm3+ is 10 mol%. The main emission band is well matched with the photochromic absorption band of KSN host. The inversion symmetry of the environment around Sm3+ in KSN lattice and the electric dipole transition of Sm3+ are affected by the neighboring Nb(II)O6 octahedrons. The related concentration quenching mechanism of luminescence and the effect of Sm3+ doping on the KSN lattice structures are further discussed.

源语言英语
文章编号2100738
期刊Physica Status Solidi (A) Applications and Materials Science
219
5
DOI
出版状态已出版 - 3月 2022

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