Electrophoresis deposition of carbon nanotubes for triode-type field emission display

A triode-type field emission display has been fabricated using carbon nanot ube emitters. Purified single walled carbon nanotubes were selectively depo sited onto a cathode electrode in a triode-type structure by an electrophor esis. Emission current was modulated with gate potentials of 100-300 V. A h igh brightness of 1000 cd/m(2) with uniform emission was obtained at 900 V at the anode and 200 V at the gate. The fluctuation of emission current was found to be less than 5% in a fully sealed field emission display. Selecti ve deposition of carbon nanotubes by electrophoresis shows high feasibility for triode-type field emission displays. (C) 2001 American Institute of Ph ysics.