Size effect of nanometer vacuum gap thermionic power conversion device with CsI coated graphite electrodes

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Cesium iodide (CsI) coated graphite is a good candidate for an electrode material of a thermionic power generation device due to its low work function. In this letter, a thermionic device with a nanometer-scale vacuum gap between a CsI coated graphite emitter and a collector will be investigated while considering various gap-size effects. It is shown that a nanometer scale gap-size not only affects electron transport but also photon transport, and that all of these effects must be taken into account when estimating the device's performance.
Publisher
AMER INST PHYSICS
Issue Date
2009-11
Language
English
Article Type
Article
Keywords

RADIATIVE HEAT-TRANSFER

Citation

APPLIED PHYSICS LETTERS, v.95, no.22

ISSN
0003-6951
DOI
10.1063/1.3266921
URI
http://hdl.handle.net/10203/16486
Appears in Collection
NE-Journal Papers(저널논문)
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