为探索纳米粒子掺杂对有机功能分子特性的影响,提出了一种基于共掺杂超分子结构的功能复合材料设计新方法,即将具有存储功能的偶氮染料甲基橙定向锚接在球形银粒子表面,制备出银与甲基橙共掺杂超分子结构复合材料薄膜.利用紫外与可见分光光度计,表征了样品的光吸收,分析了金属银纳米粒子光吸收红移的机理.结果表明,与单纯染料分子掺杂相比,该实验设计的复合材料具有更短的光吸收波长.这为缩短有机光存储材料的吸收波长提供了有效途径.
To realize the enhancement or extension in properties of functional organic molecules by doping of nanoparticles, a new method for functional composites based on supramolecular structure by codoping of nanoparticles and dye. Azo dye methyl orange(MO), which has the storage properties, was anchored onto the surface of spherical silver nanoparticles, and the composite film based on supramolecular structure was prepared. The microstucture and absorption of samples were characterized respectively by transmission electron microscope (TEM) and ultraviolet-visible spectrometer (UV-Vis). And the mechanism of absorption red-shift of silver nanoparticles, the results show that the composite material has much shorter absorption wavelength than that of the film doped only by MO. this method can offer an effective way to reduce the absorption wavelength of optical storage organic materials.