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|Title:||Control of the deposition ratio of Bi2Te3 and Sb2Te3 in a vacuum evaporator for fabrication of Peltier elements|
|Author(s):||Gonçalves, L. M.|
Rocha, J. G.
Correia, J. H.
|Citation:||IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS, Québec, Canada, 2006 – “ISIE 2006 : proceedings”. [S.l.] : IEEE, 2006. ISBN 1-4244-0497-5. p. 2773-2777.|
|Abstract(s):||This article reports the main problem and the corresponding solution of the co-evaporation of Bi2Te3 and Sb2Te3 films for the fabrication of Peltier elements. This main problem consists in the control of the deposition rates of the two elements: Bi or Sb and Te, which have very different vapor pressures. The control of the deposition ratio was achieved by means of a PID controller, which permitted the fabrication of thin-film Peltier elements that produce a temperature gradient in the order of 2C between their hot and cold junctions, when measured at free air conditions.|
|Appears in Collections:||DEI - Artigos em atas de congressos internacionais|
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