Low-Temperature Thermionic Emission from Diamond Micropowders with Sharp Edges

Tomomi YOSHIMOTO  Tatsuo IWATA  

IEICE TRANSACTIONS on Electronics   Vol.E96-C   No.1   pp.132-134
Publication Date: 2013/01/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E96.C.132
Print ISSN: 0916-8516
Type of Manuscript: BRIEF PAPER
Category: Semiconductor Materials and Devices
thermionic emission,  diamond micropowder,  work function,  

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The thermionic emission properties of diamond micropowders were investigated. The thermionic emission current was observed at a low temperature of 702 K, and a work function of approximately 1.97 eV was obtained. Band bending in diamond micropowders induced by an applied electric field had a considerable influence on decreasing the work function.