设计合成具有宽谱带，特别是近紫外光与可见光激发功能的有机配体分子(扩展体系-二酮类、吖啶酮类、苯丙芴酮类)，继以修饰得到宽谱带激发性质的分子桥(包括有机改性硅氧烷ORMOSILs)作为化学连接体，配合具有可见光及近红外光发射的稀土离子，通过化学键(共价键、配位键、离子键)，复合无机纳米孔、有机聚合物及金属有机框架等主体基质，组装出具有宽谱带激发特别是近紫外/可见光激发的新型稀土光转换(近紫外/可见-可见(Eu(III)、Tb(III)、Sm(III)(荧光)，Gd(III)(磷光))-近紫外/可见-近红外(Er(III)、Nd(III)、Yb(III)) (荧光))功能的杂化材料体系，实现发光颜色可调并获得白光。研究其光物理性质(光吸收、发光、寿命、量子效率、颜色可调等)及光功能集成，在此基础上探索其在光转换(显示照明及光学放大)薄膜器件及光物理传感领域的初步应用研究。

The organic ligand molecules with wide spectral band, especially NUV near ultraviolet-visible light absorption or excitation (extended beta-diketones, hydroxy-1H-phenalen-1-one,dihydroketoacridine) are designed and syntheiszed, which are then furthter modified to molecule bridges with wide spectral bands excitation or absorption (including organic modified siloxanes) to behave as chemical linkage. Afterwards, visible or near infrared (NIR) emissive rare earth ions are involved and then composed with host matrices of inorganic nanopore hosts, organic polymers or metal organic frameworks through the chemical bonds (covalent bond, coordionation bond, ion band). Subsequently, the novel rare earth photo-conversion (NUV/visible-visible for Eu(III)/Tb(III)/Sm(III)(fluorescence) or Gd(III)(phosphorescence))and NUV/visible-NIR for Er(III)/Nd(III)/Yb(III)) hybrid material systems are assembled, which shows wide spectral bands excitation, especially NIR/visible light excitation, and realizes the adjustable luminescence color to obtain white luminescence. The photophysical properties (absorption, luminescence,lifetime, quantum efficiency, energy tranfer efficiency) and photofucntionalintegration of them are studied deeply. At the basis of the fundamental research, the preliminary applications in photo-conversion thin-films devices (display, lighting or optical amplifying) and photophysical sensors will be further explored.