金纳米线介孔二氧化硅薄膜的制备和非线性光学性能研究  

Preparation and Non-linear Optical Properties of Mesoporous Silica Film Incorporated with Gold Nanowires

作　　者：张倩[1] 单锋[1] 陆学民[1] 路庆华[1] 

机构地区：[1]上海交通大学化学化工学院,上海200240

出　　处：《无机材料学报》2013年第10期1087-1092,共6页Journal of Inorganic Materials

基　　金：国家自然科学基金(50902094)~~

摘　　要：利用热气流法制备的宏观平行取向介孔二氧化硅薄膜为载体,经氨基硅烷APTS对孔道进行表面修饰后,在介孔孔道中原位生成了金纳米线。研究结果表明:由于介孔孔道的限制效应,在氯金酸的乙醇溶液中浸泡较长时间后,利用氢气还原可获得长径比较大的金纳米线。Z扫描测试表明,这种金纳米线-介孔二氧化硅复合薄膜材料具有明显的非线性光学特性。在532 nm的激光下,它还表现出明显的各向异性,有望在新型光学器件方面得到应用。An Au-loaded oriented mesoporous silica film was prepared by hot air flow method and its non-linear op- tical properties were investigated. Amino groups were first introduced to the oriented mesochannels＇ surface based on a chemical reaction, and gold nanowires were incorporated into the oriented mesochannels via the reduction by H2 af- ter the interaction between the amino groups and auric chloride acid. The hybrid film presents obviously non-linear optical properties according to Z-scan measurement. The hybrid film shows anisotropy, which is consistent with the fact that the nanowires are aligned. So the film is expected to be applied in the new optical devices.

关 键 词：介孔二氧化硅 金纳米线 非线性光学 取向 

分 类 号：O612[理学—无机化学] O484[理学—化学]