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发明公开
CN104861972A 一种Er3+和Yb3+双掺的VO2上转换发光材料 有权

一种Er3+和Yb3+双掺的VO2上转换发光材料
摘要：
一种Er3+和Yb3+双掺的VO2上转换发光材料，它涉及一种上转换发光材料。本发明的目的是要解决现有太阳能电池不能利用红外光，导致太阳能电池的转换率低的问题。方法：将Er2O3和Yb2O3加入到质量分数为65％～68％的硝酸中，再加入V2O5和草酸，再进行水热反应，得到干燥后的反应物；再将干燥后的反应物进行煅烧，得到Er3+和Yb3+双掺的VO2上转换发光材料。五、本发明制备的Er3+和Yb3+双掺的VO2上转换发光材料为纳米片，且片的厚度为20nm～50nm，是一种纳米材料。本发明可获得一种Er3+和Yb3+双掺的VO2上转换发光材料。
摘要（英）：

The invention discloses an Er<3+> and Yb<3+> double-doped VO2 up-conversion luminescent material, relates to an up-conversion luminescent material, and aims at solving the problem that infrared light cannot be utilized by an existing solar cell, so that the conversion rate of the solar cell is low. The method comprises the following steps: adding Er2O3 and Yb2O3 into nitric acid with the mass fraction of 65%-68%; adding V2O5 and oxalic acid, carrying out hydrothermal reaction, and obtaining a dried reactant; and burning the dried reactant, and obtaining the Er<3+> and Yb<3+> double-doped VO2 up-conversion luminescent material. The prepared Er<3+> and Yb<3+> double-doped VO2 up-conversion luminescent material is a nanosheet; the thickness of the nanosheet is 20-50nm; and the Er<3+> and Yb<3+> double-doped VO2 up-conversion luminescent material is a nanometer material. The Er<3+> and Yb<3+> double-doped VO2 up-conversion luminescent material can be obtained.

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