文章基本信息

标题：Structure and Photoluminescence Properties of Sm3+ Ion-Doped LiSrBiTeO6 Phosphor
作者：Bin Deng ; Chong-song Zhou ; Hui Liu 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：186
期号：4
页码：012069
DOI：10.1088/1755-1315/186/4/012069
语种：English
出版社：IOP Publishing
摘要：A series of novel Sm³⁺-doped LiSrBiTeO₆ red-emitting phosphors were prepared by the solid-state reaction method for the first time. Its crystal structure and luminescence are investigated. The excitation spectrum indicates that the LiSrBiTeO₆:Sm³⁺ phosphor can be excited efficiently under 405 nm irradiation, which matches well with the output wavelength of UV LED chips. The photoluminescence spectrum of LiSrBiTeO₆:Sm³⁺ phosphor shows four peaks assigned to the⁴G_5/2 to⁶H_J (J = 5/2, 7/2, 9/2, and 11/2) transitions of Sm³⁺. The strong peak emits bright red luminescence at 645 nm. The luminescence intensity keeps increasing with increasing the content of Sm³⁺ to 5 mol%. The critical transfer distance of Sm³⁺ is calculated as 17 Å. All results indicated that LiSrBiTeO₆:Sm³⁺ phosphors have potential application as red phosphors for near-UV chip-based white light-emitting diode and display devices.