We demonstrate the field electron emission from a carbon black dot array prepared by inkjet printing. A commercially available inkjet printer and drawing software were used to pattern the carbon-black-containing ink on the tungsten suicide surface which was deposited on a Si wafer. Field electron emission characteristics were measured using a diode configuration. It was found that oxygen reactive ion etching (RIE) of the printed carbon black is effective for obtaining the field emission. The turn-on voltage was 500V and an emission current over 100μA was obtained at a voltage of 1400V with a 25 μm-wide gap between anode and cathode. It was also found that a rapid increase of the voltage is effective in increasing the emission current and the number of emission sites.
|Number of pages||5|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes|
|Issue number||6 B|
|Publication status||Published - Jun 2004|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)