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Power optimization in thermionic devices

delete2005-06-03
delete110
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OA
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T
T. E. Humphrey
M
M. F. O'Dwyer
H
Heiner Linke
DOI:10.1088/0022-3727/38/12/029delete
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Abstract

Abstract

En 中文
Conventional thermionic power generators and refrigerators utilize a barrier in the direction of transport to selectively transmit high-energy electrons, resulting in an energy spectrum of electrons that is not optimal for high efficiency or high power. Here, we derive the ideal energy spectrum for achieving maximum power in thermionic refrigerators and power generators. By using energy barriers that block or transmit electrons according to their total momentum rather than their momentum in the direction of transport, the power of thermionic devices can, in principle, be doubled and the electronic efficiency improved by 25%.
Keywords:
SEMICONDUCTOR
EMISSION
REFRIGERATION
EFFICIENCY
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Journal

Journal of Physics D-Applied Physics cover
Journal of Physics D-Applied Physics
IF:
3.2
Papers:
2.6W
Citations:
4.9W

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