碳纳米管薄膜的湿敏特性测试

材料导报, 2005, 19(z2): 84-85.

碳纳米管薄膜的湿敏特性测试

曹春兰 ^1, , 廖克俊 ^2, , 罗建邦 ^3, , 韦逢艳 ^4,

1.重庆大学应用物理系,重庆,400044;重庆通信学院物理系,重庆,400035

2.重庆大学应用物理系,重庆,400044

3.北碚教育委员会,重庆,400714

4.重庆大学应用物理系,重庆,400044

基金项目: 中国科学院资助项目(60376032)

关键词：纳米管 , 湿敏特性 , 薄膜电阻 , 化学修饰

Experimental Resistance Humidity Sensitivity Characteristic of Carbon Nanotube Thin Films

分别对修饰的和未修饰的多壁碳纳米管(MWCNTs)薄膜的湿敏特性进行了研究,发现修饰的多壁碳纳米管(MWCNTs)薄膜对湿度十分敏感.测量其湿敏特性表明:其电阻值随相对湿度有明显的变化,并呈线性关系,通过拟合计算得到修饰的和未修饰的多壁碳纳米管电阻率相对湿度系数分别为2.354×10-2Ω·m/RH和1.534×10-2Ω·m/RH.研究结果表明,碳纳米管在湿度传感器领域将有巨大的应用前景.

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材料期刊网

碳纳米管薄膜的湿敏特性测试

Experimental Resistance Humidity Sensitivity Characteristic of Carbon Nanotube Thin Films

参考文献