Lowering of Threshold Voltage by Thermal Annealing of Diamond Micropowder Field Emitter

Tomomi YOSHIMOTO; Yoshiaki SUGIMOTO; Tatsuo IWATA

doi:10.1587/transele.E98.C.995

IEICE Transactions on Electronics

Online ISSN : 1745-1353
Print ISSN : 0916-8524

Regular Section

Lowering of Threshold Voltage by Thermal Annealing of Diamond Micropowder Field Emitter

Tomomi YOSHIMOTO, Yoshiaki SUGIMOTO, Tatsuo IWATA

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Keywords: diamond, micropowders, field emission, threshold voltage

JOURNAL RESTRICTED ACCESS

2015 Volume E98.C Issue 10 Pages 995-998

DOI https://doi.org/10.1587/transele.E98.C.995

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Abstract

The effect of annealing on the field emission characteristics of a field emitter comprising diamond micropowder was investigated. The threshold voltage V_th at which the emission current begins to flow decreased as the annealing temperature increased, and a minimum V_th was obtained at an annealing temperature of 1345K. The reduction in threshold voltage was due to a reduction in the work function with annealing.

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