电泳电压对碳纳米管沉积薄膜及阴极场发射特性影响  

Influence of Electrophoretic Voltage on Morphologies and Field Emission Properties of Carbon Nanotube Film

作　　者：梅山孩[1] 冯涛[2] 孙卓[2] 林丽锋[2] 

机构地区：[1]浙江树人大学基础部,浙江杭州320012 [2]华东师范大学纳米功能材料与器件应用研究中心,上海200062

出　　处：《液晶与显示》2008年第4期478-483,共6页Chinese Journal of Liquid Crystals and Displays

基　　金：国家自然科学基金(No50672026);上海市纳米专项(No0652nm033);上海市科技启明星项目(No07QA14019)资助课题

摘　　要：电泳法是制作碳纳米管冷阴极的重要方法。电泳电压是电泳过程中的重要参数,不同电压会影响阴极沉积的厚度和效率、形貌结构及场发射特性。实验对比研究和机理分析认为,电压在20～30V区间内较易获得良好的碳纳米管场发射冷阴极。针对电泳边缘增厚效应,提出减小电场强度边缘效应方法。Electrophoretic deposition technique was employed for producing carbon nanotubes cold cathode as an essential method. Voltage is an important parameter of electrophoretic deposition. The value of voltage affects depositive thickness, depositive rate, depositive morphology, and field emission propetty of cold cathode. By comparing the samples and analysing mechanism,the conclusion held that the cold cathode field emission has good characteristics when the voltage range is from 20 V to 30 V. For the edge thickening effectiveness of electrophoretic deposition, the method of reducing the edge effect of electric field intensity was proposed as a result of mechanism analysis.

关 键 词：碳纳米管 场发射特性 电泳法 电压 

分 类 号：TN383.1[电子电信—物理电子学] TN304.18