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 |
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文章编号 | 2100738 |
期刊 | Physica Status Solidi (A) Applications and Materials Science |
卷 | 219 |
期 | 5 |
DOI | |
出版状态 | 已出版 - 3月 2022 |