Thermotunnel refrigerator with vacuum/insulator tunnel barrier: A theoretical analysis

Tavkhelidze, A. and Svanidze, V. and Tsakadze, L. (2008) Thermotunnel refrigerator with vacuum/insulator tunnel barrier: A theoretical analysis. J. Vac. Sci. Technol. A, 26 (5). pp. 5-7.

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Abstract

The authors use two insulator layers in thermotunnel refrigerator to modify the shape of the tunneling barrier so that electrons with high kinetic energy pass it with increased probability. Theoreticalanalysis show that the overall tunneling current between the electrodes contains an increased number of high kinetic energy electrons and a reduced number of low energy ones, leading to high efficiency. The particular case of vacuum gap and solid insulator layer is calculated using digital methods. Efficiency remains high in the wide range of the emitter electric field. The cooling coefficient is found to be as high as 40%−50% in the wide range of the emitter electric field.

Item Type:	Article
Subjects:	T Technology > T Technology (General)
Divisions:	Faculties/Schools > School of Natural Sciences and Engineering
Depositing User:	Professor Avtandil Tavkhelidze
Date Deposited:	05 May 2014 12:53
Last Modified:	02 Apr 2015 08:24
URI:	http://eprints.iliauni.edu.ge/id/eprint/1403

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