Metal-Fixed Multiwalled Carbon Nanotube Patterned Emitters Using Photolithography and Electrodeposition Technique

Abstract

We have demonstrated that patterned Cu-multiwalled carbon nanotube (MWCNT) composite emitters can be fabricated using a unique electrodeposition technique including a photolithography process. Well-regulated, patterned Cu-MWCNT composite emitters 50 μm in diameter were formed on the conductive substrates. The MWCNTs were fixed on the patterned composite emitters. The field emission properties were studied by a diode-type measurement system. The field emission electric field was relatively low (1.5 V μm -1 for 1 x 10 -5 μA cm -2 , 2.5 V μm -1 for 10 μA cm -2 ). These composite emitters can be expected to be applied in field emission displays and other field emission devices.