氧化石墨烯/壳聚糖复合薄膜材料的制备及其非线性光限幅效应的研究  

Preparation of graghene oxide/chitosan composite films and investigations on their nonlinear optical limiting effect

作　　者：陆晶晶[1] 冯苗[1] 詹红兵[1] 

机构地区：[1]福州大学材料科学与工程学院,福州350108

出　　处：《物理学报》2013年第1期188-192,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:51172045);高等学校博士学科点专项科研基金(新教师类)(批准号:20113514120006);福建省自然科学基金(批准号:2012J05113)资助的课题~~

摘　　要：石墨烯及其衍生物作为新型碳纳米结构,由于其优异的光限幅性能而受到广泛关注,但现有的工作多侧重于其在液相体系中光限幅效应及其起因研究.本文以壳聚糖为成膜基质,将氧化石墨烯(GO)与壳聚糖(CS)在液相中均匀共混后成膜,对比研究GO溶液和GO-CS复合膜的光限幅效应及其起因.结果表明在线性透过率相同的情况下,GO在固相基质中表现出比液相基质更强的光限幅效应和更弱的非线性散射.这说明不同于碳纳米管简单的非线性散射,在GO中可能存在多种非线性光学效应.As a new kind of carbon nanostructured material, graphene and its derivatives have attracted extensive attention owing to their outstanding optical limiting （OL） properties. However, most of the current studies concentrate on liquid matrix. In this work, we use chitosan （CS） as matrix and homogeneously disperse graphene oxide （GO） into it to prepare GO-CS composite films. We comparatively study the different OL effects and mechanisms of GO in liquid and solid matrix. The results show that GO presents stronger nonlinear optical effect and weaker nonlinear optical scatter, which indicates that different from carbon nanotubes, GO may possess multi sort of nonlinear optical effects.

关 键 词：氧化石墨烯 壳聚糖 非线性光学 光限幅 

分 类 号：TB383.2[一般工业技术—材料科学与工程]