A novel approach to mass synthesis of raw CNTs for printed field emission cathodes by chemical vapour deposition

作者：Guo PS^*; Sun Z; Chen YW; Zheng ZH

来源：Materials Letters, 2006, 60(7): 966-969.

DOI：10.1016/j.matlet.2005.10.079

• carbon nanotubes (CNTs)
• chemical vapor deposition (CVD)
• field emission
• screen printing

Using nickel foil as both substrate and catalyst, we report a simple, cheap and easily controllable thermal chemical vapor deposition (CVD) for mass synthesis of carbon nanotubes (CNTs). Grams of CNTs with high purity and good uniformity have been obtained on the nickel foil at 550 degrees C in a gas mixture of C2H2 and H-2. The as-prepared CNTs were screen-printed on Ag electrodes patterned on glass to form field emission cathodes. The cathodes exhibit excellent field emission properties, with a turn-on field of 1.0 V/mu m, the emission current density of 1 mA/cm(2) at 2.5 V/mu m, and uniform emission luminescence. This CVD method shows great promise in large-scale production of raw materials of CNTs for application of field emission display.

• 出版日期2006-4
• 单位华东师范大学