激光纳米焊接改善CNTs薄膜场发射性能研究  

Study on the emission properties of carbon nanotube films by laser nano welding

作　　者：李必奎 刘璇[1] 王鹏波[1] LI Bi-kui;LIU Xuan;WANG Peng-bo(Shanghai Ocean University China Shanghai 201306,China)

机构地区：[1]上海海洋大学工程学院,中国上海201306

出　　处：《科技视界》2018年第6期11-12,68,共3页Science & Technology Vision

基　　金：国家自然基金(51005145和51075258)

摘　　要：结合电泳沉积法和激光纳米焊接工序,在没有结合剂的情形下完成了CNTs和Al基层间较好的嵌入式粘合,从而制备出CNTs和AL复合材质形成的场发射阴极薄层。对该复合材质进行膜场发射机能测量,开启电压下降了约60%,发射ρ(I)表现出稳固晋升。正是由于激光的快速、稳固和纯净,使得处理后的界面阻抗减小,电子发射更容易。Joint electrophoretic deposition and laser welding process,in the absence of binder finished good embedded between carbon nanotubes and metal base adhesive,carbon nanotubes and aluminum composite material to form of field emission cathode film.The membrane field emission function test of this composite material,the voltage drop was reduced by about 60%,and the emission current density showed a solid promotion.It is because of the rapid,stable and pure laser that the interface impedance is reduced and the electron emission is easier.

关 键 词：电泳沉积法 激光纳米焊接 场发射阴极薄层 开启电压 

分 类 号：TB333[一般工业技术—材料科学与工程]