Integration of CuO Thin Film and Bi2Te3 for Enhancing the Thermoelectric Conversion Efficiency of Thermoelectric Generator

Author:

Chang Ho1,Cho Kung Ching2,Yu Chih Jung1,Huang Kuohsiu David1,Chen Chieh Chen1

Affiliation:

1. National Taipei University of Technology

2. Texas A&M University

Abstract

The paper deals with a coating CuO thin film coating on the surface of semiconductor thermoelements (Bi2Te3). In addition, the recycled external exhaust heat is used to generate electric power, further enhancing the thermoelectric conversion efficiency of the thermoelectric generator (TEG). By using electrophoresis deposition, a CuO nanofluid with high suspension stability and good dispersion is deposited on an aluminum foil at a thickness of 0.1mm. This film is conjugated with the top and base of a semiconductor thermoelements (Bi2Te3), and a thermoelectric generator is assembled in parallel with the modified thermoelectric material. Experimental results show that the CuO nanofilm coating on the surface of semiconductor thermoelements can enhance the overall heat conduction and thermoelectric conversion efficiency of thermoelectric generators by as much as 30%.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

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4. D. Mills: P Sol. Energy. Vol. 76 (2004), p.19.

5. P. Yodovard, J. Khedari, J. Hirunlabh: Energy Sources. Vol. 23 (2001), p.213.

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