Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Nano-size effects in graphite/graphene structure exposed to cesium vapor. / Mustafaev, A. S.; Yarygin, V. I.; Soukhomlinov, V. S.; Tsyganov, A. B.; Kaganovich, I. D.
в: Journal of Applied Physics, Том 124, № 12, 123304, 28.09.2018.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Nano-size effects in graphite/graphene structure exposed to cesium vapor
AU - Mustafaev, A. S.
AU - Yarygin, V. I.
AU - Soukhomlinov, V. S.
AU - Tsyganov, A. B.
AU - Kaganovich, I. D.
N1 - Funding Information: The authors would like to thank Professor V. Polischuk from ITMO University for his valuable technical support on SEM measurement, Yao-Wen Yeh for technical assistance in measurements of the work function at PRISM, and Dr. Yevgeny Raitses for valuable discussions. Igor Kaganovich would like to acknowledge the Office of Science, Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division, for supporting the measurements of the work function at PRISM and his effort. Publisher Copyright: © 2018 Author(s). Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/9/28
Y1 - 2018/9/28
N2 - A thermionic energy converter with a nickel collector and cesium vapor as a working gas was studied, and an abnormally low value of the surface work function of ≈1 eV was obtained if the collector was covered by a thin carbon layer. Scanning electron microscopy x-ray microanalysis data of the elemental composition of the collector's surface after its long exposure to plasma indicate that the carbon structure was intercalated with cesium atoms, and this change to surface structure can be a reason for the anomalously low work function ∼1 eV. The thermionic energy converter with such a collector demonstrated high heat-to-electric power conversion efficiency up to ∼20%.
AB - A thermionic energy converter with a nickel collector and cesium vapor as a working gas was studied, and an abnormally low value of the surface work function of ≈1 eV was obtained if the collector was covered by a thin carbon layer. Scanning electron microscopy x-ray microanalysis data of the elemental composition of the collector's surface after its long exposure to plasma indicate that the carbon structure was intercalated with cesium atoms, and this change to surface structure can be a reason for the anomalously low work function ∼1 eV. The thermionic energy converter with such a collector demonstrated high heat-to-electric power conversion efficiency up to ∼20%.
UR - http://www.scopus.com/inward/record.url?scp=85054369243&partnerID=8YFLogxK
U2 - 10.1063/1.5037028
DO - 10.1063/1.5037028
M3 - Article
AN - SCOPUS:85054369243
VL - 124
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 12
M1 - 123304
ER -
ID: 35767524