光是植物光合作用不可缺少的能量来源，普通LED可为农业提供人工光，却因在高波段缺少发射被限制使用，制备高波段、高热稳定荧光材料能够解决以上问题，为LED在农业领域大范围应用提供可能。本项目以前期工作中得到的锰离子激发复相结构荧光材料为切入点，探索合成锰离子激发铝酸盐双基质高波段荧光材料，分析双、单基质荧光材料的发光性质及基质材料之间的相互作用，澄清复相结构增强发射的机制；通过单原子气相沉积技术包覆所得荧光材料，研究不同包覆方式对于荧光材料表面热障涂层的包覆速率、涂层的致密性、均匀性等的影响规律；考察热障涂层对荧光材料发光性能、晶体特性、微观形貌和热稳定性的影响方式，结合基质材料和热障涂层宏观材料本身的传热特性，揭示微观纳米涂层对传热方式影响的一般规律，为发展新型复相结构农业照明用荧光材料提供理论基础。该工作对拓展现有高波段荧光材料和发展粉体三维材料表面改性技术具有重要的科学意义。

Light is an indispensable energy source for photosynthesis. Normal LED limited applied in the agricultural field due to lack of emission at high red light region. Prepared the high wavelength band, high thermal stability luminescent material can solve the above problem and make the LED have wide range of application in agriculture field. The obtained manganese ions doped double-phased luminescent material in previous work will be used as breakthrough point in this project. The main aims of this project is try to explore the way of prepare high wavelength band manganese ions doped double-phased luminescent material and analysis the interaction between luminescent properties host material types, single or double phased, to clear the mechanism of double-phased increase luminescence intensity. The obtained luminescent material will coat by the atomic layer deposition process. The coating rate, coating compactness and uniformity of the coating layer from difference coating methods will be study. How the thermal barrier influences the luminescent properties, crystal properties, microstructure and thermal stability of material will be observe very carefully as a model. Finally, the general rule of heat transfer through the nano-barrier layer will be reveals by the means of comparing the heat transfer properties of host material and barrier’s bulk material, which will afford a theoretical basis for developing new double phased agricultural lighting luminescent material. The work has great scientific significance for the development of high wavelength band luminescent materials and the development of three-dimensional powder surface modification technology.