Field emission from sharp protrusions of graphite fabricated by sandblasting process

Abstract

The sandblasting process, a novel method for fabricating field emitters, has been adapted to be used on graphite substrates. The sandblasted graphite substrate features numerous sharp protrusions on its surface that serve as effective field emitters. The threshold of the electric field was found to be 0.78 V/μm, and linear Fowler-Nordheim plots were achieved. These results demonstrate the potential of the sandblasting process for fabricating graphite-based emitters.