新型VUV荧光材料和双光子过程的研究

This project focused on synthesis, structure and luminescent properties of rare earth polyborates and fluorides. By using boric acid as a flux, we successfully obtained series new rare earth polyborates. Seven new structure types, with several tens new compounds of rare earth pentaborates, hexaborates, octaborates and nonaborates, were characterized. Among them, the luminescent properties of anhydrous rare earth pentaborate were studied under VUV excitation. The results are valuable not only for searching new borate materials but also for enriching borate chemistry. In addition, the synthesis and down-conversion effect of several rare earth fluoride systems was studied.

VUV激发下的高效红、绿双光子发射荧光材料是实现无汞荧光灯和等离平板显示的关键性材稀Ｏ钅拷芯炕饰障拢视胂⊥晾胱蛹涞哪芰看荨UV吸收跃迁的归属、双光子发射过程机理。在此基础上，研制出红、绿色高效VUV荧光材料。