Electron emission from diamond nanoparticles on metal tips

Tyler, T.; Zhirnov, V. V.; Kvit, A. V.; Kang, D.; Hren, J. J.
April 2003
Applied Physics Letters;4/28/2003, Vol. 82 Issue 17, p2904
Academic Journal
Single-crystalline diamond nanoparticles (∼5 nm in scale) have been deposited onto molybdenum needles (with radii <100 nm), and their effects on field emission behavior were measured. Combined transmission electron microscopy observations, field emission measurements, and diamond depositions allowed for direct comparison of the effects of various amounts of nanodiamond coating on the field emission properties of a coated metal field emitter. In the limit, field emission from a single isolated diamond nanoparticle is compared here with that from an uncoated metal emitter and from a coating comprised of several layers of nanoparticles.


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