No abstract

A 3.5-inch, 60×120 pixels, reflective-type carbon nanotube emitter field-emission display has been fabricated by thick-film process. A seven-segment numerical indicator showing digit image was also demonstrated using opposed diode structure as comparison. The technical development, including design and fabrication of the nanotube emitters, phosphor, and vacuum package process was described.

Field emission properties of plasma treated multiwalled carbon nanotube cathode layersThe fabrication of carbon nanotube emitters with excellent emission properties is described. The nanotubes synthesized by arc discharge are used as electron emitters. The fibrous bundles containing nanotubes were crushed, mixed with conductive pastes, and slurries and then screen printed. The scanning electron microscopy images showed that the nanotubes were disordered and the average diameter was about several tens of nanometers. In a diode structure, the electron field emission can be turned on at a field as low as 2 V/m and attains current density as large as 7.2 mA/cm 2 . No significant degradation of these performance is observed for thus made electron emitters, operated under 3 V/m (Jϭ2.8 mA/cm 2 ) for tens of hours. The influence of the growth condition and post-treatment process on the emission characteristics of carbon nanotubes emitters will also be discussed in this article.

No abstract

A field emission display using carbon nanotubes ͑CNTs͒ as emitters is demonstrated. The CNTs, synthesized by arc discharge, were screen printed on glass to serve as the cold cathode. The anode plate, which was indium-tin-oxide coated glass printed with P15 phosphor, was separated from the cathode using 110 m spacers. The diode structure possesses marvelous field emission properties, including low turn-on voltage ͑250 V͒, large emission current density ͑2.6 mA/cm 2 under 450 V͒ and high brightness ͑2500 nits͒. A numerical indicator with 15 pixels, driven by metal-oxidesemiconductor field effect transistors using a gate voltage of 5 V for controlling the on/off of each pixel, illustrates the capability of data addressing.