为实现短波长光存储材料,提出一种基于金属纳米粒子与染料共掺杂的复合材料制备新方法.采用透射电子显微镜(TEM)、紫外-可见吸收光谱(UV-Vis)以及傅立叶变换红外光谱(FT-IR)对所制备的复合薄膜进行表征.实验发现,与未掺杂银的薄膜相比,掺杂银的复合薄膜中甲基橙的吸收蓝移了6nm.提出并利用超分子结构模型分析了该吸收蓝移的机理.研究结果显示,本研究所提出的这种新的材料制备方法具有制备吸收波长在400～500nm,且可望与GaN激光器在光存储技术中匹配的能力.
A novel method for preparation of composite film codoped with metal nanoparticles and dyes was developed to achieve optical storage material absorbing in short wavelength band. The nanocomposite films were characterized by transmission electron microscope (TEM), UV- Vis photometer (UV- Vis) and Fourier transform infrared ( FT - IR) spectra. Compared with the absorption of methyl orange (MO) in the film without silver, a 6 - nanometer absorption blue - shift of MO in the film with silverwas observed. The mechanism of absorption shift was analyzed by a proposed supra - molecular structure model. The results suggested that this new type of material was capable of matching CaN laser, having wavelength of 400 -450nm, in optical storage technology.
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