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Ferroelectric up-conversion luminescent material and preparation method thereof
The invention discloses a ferroelectric up-conversion luminescent material and a preparation method thereof. The chemical formula of the material is CaBi < 7.9-x > HoxYb < 0.1 > Ti < 7 > O < 27 >, and x is equal to 0.02, 0.04, 0.08, 0.1 or 0.12. The preparation method comprises the following steps: taking CaCO3, Bi2O3, Yb2O3, TiO2, Ho2O3 and Nb2O5 as raw materials, weighing according to a chemical ratio, mixing and grinding by using a ball mill, and preparing the CaBi (7.9-x) HoxYb0. 1Ti7O27 ceramic through a high-temperature solid-phase reaction method. The material has the advantages that diffuse reflection spectrums and up-conversion emission spectrums of the material before and after near ultraviolet light irradiation are obviously different under the two conditions of a non-electric polarization state and an electric polarization state, and the material can be applied to the field of safety and anti-counterfeiting in the future.
本发明公开一种铁电上转换发光材料及其制备方法。材料的化学式为CaBi7.9‑xHoxYb0.1Ti7O27，其中，x＝0.02、0.04、0.08、0.1或0.12。制备方法是以CaCO3、Bi2O3、Yb2O3、TiO2、Ho2O3和Nb2O5作为原料，按化学配比称量，利用球磨机混合研磨，通过高温固相反应法而制备出CaBi7.9‑xHoxYb0.1Ti7O27陶瓷。本发明优点：无电极化态和有电极化态两种情况下近紫外光辐照前后材料的漫反射光谱和上转换发光谱均展现明显不同，该材料未来可用于安全防伪领域。
Ferroelectric up-conversion luminescent material and preparation method thereof
The invention discloses a ferroelectric up-conversion luminescent material and a preparation method thereof. The chemical formula of the material is CaBi < 7.9-x > HoxYb < 0.1 > Ti < 7 > O < 27 >, and x is equal to 0.02, 0.04, 0.08, 0.1 or 0.12. The preparation method comprises the following steps: taking CaCO3, Bi2O3, Yb2O3, TiO2, Ho2O3 and Nb2O5 as raw materials, weighing according to a chemical ratio, mixing and grinding by using a ball mill, and preparing the CaBi (7.9-x) HoxYb0. 1Ti7O27 ceramic through a high-temperature solid-phase reaction method. The material has the advantages that diffuse reflection spectrums and up-conversion emission spectrums of the material before and after near ultraviolet light irradiation are obviously different under the two conditions of a non-electric polarization state and an electric polarization state, and the material can be applied to the field of safety and anti-counterfeiting in the future.
本发明公开一种铁电上转换发光材料及其制备方法。材料的化学式为CaBi7.9‑xHoxYb0.1Ti7O27，其中，x＝0.02、0.04、0.08、0.1或0.12。制备方法是以CaCO3、Bi2O3、Yb2O3、TiO2、Ho2O3和Nb2O5作为原料，按化学配比称量，利用球磨机混合研磨，通过高温固相反应法而制备出CaBi7.9‑xHoxYb0.1Ti7O27陶瓷。本发明优点：无电极化态和有电极化态两种情况下近紫外光辐照前后材料的漫反射光谱和上转换发光谱均展现明显不同，该材料未来可用于安全防伪领域。
Ferroelectric up-conversion luminescent material and preparation method thereof
一种铁电上转换发光材料及其制备方法
WEN JIE (author) / WANG CHAO (author) / ZHONG ZHUOYUAN (author)
2023-05-05
Patent
Electronic Resource
Chinese
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