Broadband up-conversion in SrLaAlO4: Yb3+/Ho3+/Mn4+ phosphor
Broadband up-conversion in SrLaAlO4: Yb3+/Ho3+/Mn4+ phosphor
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SrLaAlO4: Yb3 /Ho3 /Mn4 荧光粉中的宽带上转换
DOI:
10.1016/j.optmat.2020.110416
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发表时间:
2020-11
影响因子:
3.9
通讯作者:
肖思国
中科院分区:
文献类型:
--
作者:
颜志文;黄蕊;阳效良;肖思国
A series of SrLaAlO4(SLA): Yb3+/Ho3+/Mn4+phosphors have been synthesized via high-temperature solid-state reaction method. The SLA: Yb3+/Ho3+/Mn4+phosphor shows a broadband red up-conversion luminescence band of 600–800 nm under the excitation of 980 nm laser excitation, which is composed of the Mn4+:2Eg→4A2gand Ho3+:5F5→5I8,5S2/5F4→5I7emissions. The Ho3+, Yb3+and Mn4+concentrations dependent up-conversion emission spectra, Mn4+concentration dependent lifetime of Ho3+546 nm emission, and pumping power dependent up-conversion behaviors of the SLA: Yb3+/Ho3+/Mn4+phosphor have been studied. It is believed that the Yb3+→Ho3+→Mn4+energy transfer is responsible for the broadband red up-conversion, which provides reference significance for exploring novel up-conversion phosphors.
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