氧化钒-碳纳米管复合薄膜的制备及特性  

Preparation and Properties of Vanadium Oxide-Carbon Nanotube Composite Films

作　　者：温粤江[1] 许向东[1] 何琼[1] 樊泰君[1] 杨书兵[1] 黄龙[1] 敖天宏[1] 马春前[1] 蒋亚东[1] 

机构地区：[1]电子科技大学光电信息学院,四川成都610054

出　　处：《光学学报》2012年第5期297-302,共6页Acta Optica Sinica

基　　金：国家自然科学基金(NSFC61071032);国家重点实验室开放基金(KFJJ200917)资助课题

摘　　要：提出了一种制备氧化钒热敏电阻薄膜的新方法。采用紫外光和过氧化氢相结合的方法,对多壁碳纳米管进行功能化处理,然后通过溶胶-凝胶法,使功能化碳纳米管与V2O5相复合,制备氧化钒-碳纳米管复合薄膜。与单纯的氧化钒薄膜相比,氧化钒-碳纳米管复合膜的薄膜方阻和光学带隙发生减小,而电阻温度系数(TCR)和光吸收率相应增大。复合膜还具有更高的载流子迁移速率,更加适合应用到红外探测器当中。Multi-walled carbon nanotubes（MWCNTs） are functionalized by hydrogen peroxide under UV,then they are used to prepare vanadium oxide-carbon nanotube composite films by Sol-Gel,and a new method is proposed to produce vanadium-oxide thermistor films.Compared with the single vanadium oxide films,the as-prepared composite films possess lower square resistance and optical band gap,larger temperature coefficient of resistance and light absorbance,and higher carrier migration rate.Therefore,such composite films are more suitable to be applied in uncooled infrared detectors.

关 键 词：薄膜 红外探测器 多壁碳纳米管 五氧化二钒 电学性能 光学性能 

分 类 号：TB43[一般工业技术] TN215[电子电信—物理电子学]