【摘 要】
：
提出了一种具有可调局域表面等离子体共振(LSPR)特性的光纤端面纳米结构的制备方法.利用二维胶体聚苯乙烯球(PS)单层膜的可转移性,结合溅射沉积,在光纤端面上获得了金纳米阵
【机 构】
：
中国科学院安徽光学精密机械研究所安徽省光子器件与材料重点实验室,郑州轻工业学院技术物理系,
论文部分内容阅读
提出了一种具有可调局域表面等离子体共振(LSPR)特性的光纤端面纳米结构的制备方法.利用二维胶体聚苯乙烯球(PS)单层膜的可转移性,结合溅射沉积,在光纤端面上获得了金纳米阵列结构.扫描电子显微镜和透射电子显微镜图像表明,单个纳米颗粒具有半球壳结构,阵列结构呈现六角密堆积排列;光谱测量结果显示,制备的样品具有明显的LSPR效应,改变溅射时间可实现对LSPR峰位从可见至近红外的调控,且金纳米半球壳直径改变时其LSPR峰位调控规律相似,重复测量结果表明制备的纳米结构具有良好的稳定性.
A preparation method of fiber end face nanostructures with tunable local surface plasmon resonance (LSPR) was proposed. By using the transferability of two-dimensional colloidal polystyrene spheres (PS) monolayers and the combination of sputter deposition, The gold nanometer array structure was obtained on the fiber end face.The results of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the single nanoparticle possessed the hemispherical shell structure and the array structure was hexagonal close-packed, and the spectroscopic measurements showed that the prepared sample had obvious LSPR effect , And changing the sputtering time can control the peak position of LSPR from visible to near infrared. The regulation of LSPR peak position is similar when the diameter of gold nanometer hemisphere is changed. Repeated measurement results show that the prepared nanostructure has good stability.
其他文献
In this study,a numerical model is developed to investigate the hydrate dissociation and gas production in porous media by depressurization.A series of simulati
A new manganese(Ⅱ) phosphite,Mn2F2(HPO3)(1),was synthesized with tetraethylene pentamine as structure directing agent under hydrothermal conditions.The as-synt
The authors consider the problem of boundary feedback stabilization of the 1D Euler gas dynamics locally around stationary states and prove the exponential stab
Perfluorooctanoic acid (PFOA) is a new-found hazardous persistent organic pollutant,and it is resistant to decomposition by hydroxyl radical (HO-) due to its st
Three novel redox-active percec-type dendrons were synthesized by mucleophilic substitution reaction of 11-bromoundecyl ferrocene and substituted benzoate.All t
Novel amino (-NH2) functionalized mesoporous polyvinyl pyrrolidone (PVP)/SiO2 composite nanofiber membranes were fabricated by a one-step electrospinning method
Recently,Fischer-Tropsch synthesis (FTS) has become an interesting technology because of its potential role in producing biofuels via Biomassto-Liquids (BTL) pr
In this work,experimental studies of biomass gasification under different operating conditions were carried out in an updraft gasifier combined with a copper sl
Photodegradation of Norfloxacin in aqueous solution containing algae under a medium pressure mercury lamp (15 W,λmax =365 nm) was investigated.Results indicate
A mild,efficient and simple method for the preparation of acyl azides from carboxylic acids using chlorodiphenylphosphine in the presence of molecular iodine an