基于CNT-Ni丝状阴极的场发射荧光灯  

Field Emission Fluorescence Lamp Based on CNT-Ni Linear Cathode

作　　者：苏艺菁[1] 游玉香[1] 胡利勤[1] 汤巧治[1] 张杰[1] 张永爱[1] 郭太良[1] 

机构地区：[1]福州大学物理与信息工程学院光电显示技术研究所,福建福州350002

出　　处：《液晶与显示》2010年第4期585-587,共3页Chinese Journal of Liquid Crystals and Displays

基　　金："863"重大专项资助项目(No.2008AA03A313);福建省自然科学基金资助项目(No.2009J05145);福建省教育厅科技资助项目(No.JA08005)

摘　　要：采用电泳法在金属镍(Ni)丝表面沉积碳纳米管(CNT)材料,制备成CNT-Ni丝状阴极,并在圆柱形玻璃灯管中对其进行二极结构的场发射性能测试。结果表明,CNT材料呈网状结构均匀平铺于Ni丝表面,CNT-Ni丝状阴极具有良好的场发射性能,开启场强为0.82V/μm;当阳压为3400V时,电流为2.3mA,发光亮度达到7500cd/m2;阳压为4000V时,丝状阴极场发射电流连续测试10h变化不大。CNT-Ni linear cathode is fabricated by electrophoretic deposition method, and its field emission properties are measured in the cylinder glass tube. There is a homogeneous layer of CNT reticulation on the surface of linear cathode. The field emission measurement shows that the linear cathode possesses good properties, such as low turn-on electric field of 0.82 V/μm, the current of 2.3 mA at the voltage 3 400 V, high luminance brightness of 7 500 cd/m^2, and at the voltage 4 000 V, the emission current of CNT-Ni linear cathode without significant degradation after 10 h.

关 键 词：碳纳米管 丝状阴极 场发射荧光灯 

分 类 号：TN873.95[电子电信—信息与通信工程]