旋涂法制备碳纳米管发电薄膜  

Fabrication of Carbon Nanotube Power Film by Spin-coating Method

作　　者：曹惠[1,2] 吕强[3] 刘胜[1,2] 甘志银[1,2] 

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074 [2]武汉光电国家实验室,湖北武汉430074 [3]武汉工业学院数理科学系,湖北武汉430043

出　　处：《纳米科技》2010年第5期38-41,45,共5页

基　　金：湖北省自然科学基金面上项目（I2009CDB182）; 武汉光电国家实验室（筹）创新基金面上项目（P080006）

摘　　要：采用多次旋涂法在玻璃衬底表面涂覆单壁碳纳米管（SWNT）悬浊液,形成均匀的SWNT薄膜,测量碳纳米管的发电特性,利用扫描电子显微镜（SEM）观测SWNT的分布情况,并用四探针电阻仪测量薄膜不同区域的方块电阻和薄膜的电流-电压（1-V）特性,结果表明,薄膜的I-V曲线线性度和重复度很高。不同浓度的氯化钠（NaCl）溶液以不同的流速流过SWNT薄膜表面,研究薄膜两端感应电势和电路中的电流变化情况。通过分析该变化情况,对SWNT发电机理作进一步阐释。Single-walled carbon nanotubes （SWNTs） suspension was covered on the surface of glass substrate by multi spin-coating to form uniform SWNTs network, which could be employed to test power features of SWNT. The distribution of SWNT was observed by scanning electron microscope. The sheet resistance distribution was measured by four-probe resistance meter at randomly selected on the network, and current-voltage property was determined by monitoring of multi -channel data logger. The results showed that the network has a high linear I -V characteristic and a high repeatability. The induced voltage of the network and current in the circuit were measured when NaCl aqueous solution with different concentration was flowed through the surface of the network at different flow rate. The theory of the voltage generation of SWNT in flowing ion-rich liquid was discussed.

关 键 词：碳纳米管 薄膜 发电 

分 类 号：TB383[一般工业技术—材料科学与工程]