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Fabrication and Performance of $Bi_{0.5}Sb_{1.5}Te_{3}/Bi_{2}Te_{2.4}Se_{0.6}$ Thin Film Thermoelectric Generators  

Kim Il-Ho (Department of Materials Science and Engineering/ReSEM, Chungju National University)
Jang Kyung-Wook (Department of Advanced Materials Engineering/ReSEM, Hanseo University)
Publication Information
Journal of the Korean Vacuum Society / v.15, no.2, 2006 , pp. 180-185 More about this Journal
Abstract
Microwatt power level at relatively high voltage(order of volt) was produced by $Bi_{0.5}Sb_{1.5}Te_{3}/Bi_{2}Te_{2.4}Se_{0.6}$ thin film thermoelectric generators, and maximum output power varied with temperature difference in the square-law relation. Output voltage and current were possible to control by changing the way of electrical connection as well as the number of stacking plate-modules. Variation of open circuit voltage and short circuit current with temperature difference showed a linear relationship. There were, however, some differences in variations; open circuit voltage were dependent on the number of plate-module when connected in series, but it was not for parallel connection. On the other hand, short circuit current showed the opposite behavior to the case of open circuit current.
Keywords
Thermoelectric thin film; Thermoelectric generation; Seebeck effect;
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