氧化石墨烯分散单壁碳纳米管及薄膜的导电性能  

Graphene oxides-assisted dispersion of single-wall carbon nanotubes and conductivity of films

作　　者：耿宏章[1] 王洁[1] 罗志佳[1] 达世勋 贾松霖 

机构地区：[1]天津工业大学材料科学与工程学院,天津300387

出　　处：《天津工业大学学报》2017年第6期17-21,27,共6页Journal of Tiangong University

基　　金：天津市应用基础与前沿技术研究计划重点资助项目(15JCZDJC37900)

摘　　要：为探究氧化石墨烯(GO)溶液对单壁碳纳米管(SWCNTs)的分散效果,采用Hummers法并通过控制氧化和超声过程获得不同尺寸的GO溶液对SWCNTs进行分散,制备均匀分散的碳纳米管分散液(GO/SWCNTs),以喷涂法制备碳纳米管透明导电薄膜(GO/SWCNT-TCFs),并通过SEM、TEM、紫外可见光光谱和四探针测试等方法表征不同尺寸的GO对SWCNTs的分散效果和不同分散液喷涂得到的薄膜导电性能.结果表明,尺寸最小的S-GO对SWCNTs的分散效果最好,S-GO/SWCNTs分散液的紫外可见光吸光度最高,S-GO/SWCNTs-TCFs的导电性能最佳,在透光率为85%时,薄膜面电阻为1.8 kΩ/sq.In order to explore the dispersion of single-wall carbon nanotubes （SWCNTs） with graphene oxide （GO） solution, the different size GO solutions prepared by Hummers method and controlling the oxidation and ultrasonic processes were used to disperse SWCNTs for solution-like GO/SWCNTs suspensions. The GO/SWCNT transparent conducting films （GO/SWCNT-TCFs） were prepared by spray-coating method. The dispersion of the GO/SWCNTs suspension and the conductive property of GO/SWCNT-TCFs were characterized by SEM, TEM, UV-vis spectroscopy, and electrical conductivity measurement by a four-point probe. The results show that the S-GO with minimum size disperses best the SWCNTs and the S-GO/SWCNTs suspension has the highest ultraviolet and visible absorbance. The S-GO/SWCNTs-TCFs have the best conductivity property and the sheet resistance ofS-GO/SWCNTs-TCFs is 1.8 kil/sq at 85% transmittance.

关 键 词：氧化石墨烯 单壁碳纳米管 透明导电薄膜 分散 尺寸 导电性能 

分 类 号：TS102.528.1[轻工技术与工程—纺织工程]