YVO4:Eu3+@YPO4纳米核壳结构荧光粉的水热合成及表征
Source abstract
Abstract
为了提高传统YVO4：Eu3＋荧光粉的发光效率及稳定性,采用水热法制备合成了YVO4：Eu3＋@YPO4纳米核壳结构荧光粉,通过X射线衍射仪（XRD）、透射电镜（TEM）和荧光光谱仪（PL）等测试手段对所得样品进行表征.XRD和TEM测试结果表明：由水热法合成的YVO4：Eu3＋@YPO4荧光粉包含YVO4：Eu3＋核心和YPO4壳层两种结构,荧光粉粒径为10～30 nm,壳厚为5～10 nm,形态规则、粒径均匀、结晶度高;荧光光谱测试结果表明：YVO4：Eu3＋@YPO4荧光粉比单纯YVO4：Eu3＋荧光粉的发光效率高出66.75%,且具有较高的色纯度.结合第一性原理方法,对YVO4和YPO4晶体的能带结构进行理论计算,定性说明了电子跃迁和发光的关系.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Gas Sensing Nanomaterials and Sensors · Polyoxometalates: Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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