Langmuir-Blodgett法制备柔性石墨烯透明导电薄膜  

Fabrication of flexible transparent graphene conductive films by Langmuir-Blodgett assembly technique

作　　者：闵永刚[1,2,3,4] 苑春秋 曾文进[1,2] 唐伟[3,4] 莫申斌 赵春燕[3,4] 范天举 

机构地区：[1]南京邮电大学有机电子与信息显示国家重点实验室培育基地,江苏南京210023 [2]南京邮电大学信息材料与纳米技术研究院,江苏南京210023 [3]南京邮电大学江苏省平板显示与固体照明研究中心,江苏南京210023 [4]南京邮电大学材料科学与工程学院,江苏南京210023

出　　处：《南京邮电大学学报（自然科学版）》2015年第5期112-116,共5页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：南京邮电大学引进人才项目(NY212002;NY214089)资助项目

摘　　要：文中研究采用Langmuir-Blodgett组装技术来实现柔性石墨烯透明导电薄膜的制备。通过对经典Hummers法的改进制备出氧化石墨烯,然后将氧化石墨烯薄片通过Langmuir-Blodgett技术组装后形成了边缘连接和片层堆叠的结构,接着用碘化氢(HI)低温蒸汽还原,获得优质的还原氧化石墨烯薄膜。在此基础上,进一步深入探讨组装层数与其透光性和导电性的关系,并通过实现石墨烯片层间的边缘连接结构,得到了波长在550nm处的透光率为82.69%,方块电阻为471Ω/□的优质透明导电薄膜。Transparent and flexible graphene conductive films had been investigated via Langmuir-Blodgett assembling technique. Firstly,Hummers method is improved to prepare graphene oxide. Then,the graphene oxide sheets are formatted with the edge connected and sheet stacked structure by the LangmuirBlodgett assembling technique. Finally,the reduced graphene oxide films are attained by HI vapor reduction at a low temperature. Furthermore,the relationship between the transmittance of assembling layers and their corresponding conductive is studied,and the graphene sheet with the transmittance of 82. 69%is obtained at 550 nm wavelength with the sheet resistance of 471Ω / □ of the transparent conductive thin film in edge-connecting structure.

关 键 词：LANGMUIR-BLODGETT 石墨烯 柔性 透明导电薄膜 

分 类 号：TQ013[化学工程] O484[理学—固体物理]