Organic dye-infrared up-conversion luminescent transparent ceramic composite material and preparation method thereof: Fid-Bau Portal

Organic dye-infrared up-conversion luminescent transparent ceramic composite material and preparation method thereof

The invention, on one aspect, provides an organic dye-infrared up-conversion luminescent transparent ceramic composite material, which is composed of an organic dye and an infrared up-conversion luminescent transparent ceramic. The composite material is an organic matter with a strong absorption effect on near-infrared light with a wavelength of 780nm-1100nm. The chemical formula of the infrared up-conversion luminescent transparent ceramic is (HoxYbyY1-x-yZr0.03)2O3, wherein x is greater than or equal to 0.0005 and less than or equal to 0.02, and y is greater than or equal to 0.005 and less than or equal to 0.2. And the composite material is uniformly coated on a surface of the infrared up-conversion luminescent transparent ceramic. According to the material, organic dye molecules with strong absorption and long excited state service life in an infrared region are used as a sensitizing layer to absorb infrared light firstly, and then excited state electrons are transferred to a <2>F5/2 excited state energy level of Yb<3+> ions through resonance energy transfer, so that infrared up-conversion luminescence enhancement is realized. The up-conversion luminescent transparent ceramic Ho<3+>/Yb<3+>:Y2O3 and the preparation method thereof have important application in biomedicine and infrared sensing.

本发明的一个方面，提供了一种有机染料‑红外上转换发光透明陶瓷复合材料，所述复合材料由有机染料和红外上转换发光透明陶瓷组成；所述复合材料为对780nm‑1100nm波长的近红外光具有强吸收作用的有机物；所述红外上转换发光透明陶瓷化学式为：(HoYbYZr)O，其中，0.0005≤x≤0.02，0.005≤y≤0.2；所述复合材料均匀涂敷在所述红外上转换发光透明陶瓷表面。该材料通过在红外区域具有强吸收及长激发态寿命的有机染料分子作为敏化层首先吸收红外光，然后共振能量传递将激发态电子传递至Yb离子的F激发态能级，进而实现红外上转换发光增强。本发明的上转换发光透明陶瓷Ho/Yb：YO及其制备方法在生物医药及红外传感具有重要应用。

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