Characterization of thermoelectric devices by laser induced Seebeck electromotive force (LIS-EMF) measurement
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en
Article de revue
Ce document a été publié dans
Journal of Physics D: Applied Physics. 2005-05-21, vol. 38, n° 10, p. 1489-1497
IOP Publishing
Résumé en anglais
An in-depth study related to a new method of characterizing properties in thermoelectrics is proposed in this paper. This technique is appropriate for single or multi-layered thermoelectric devices. A modulated laser beam ...Lire la suite >
An in-depth study related to a new method of characterizing properties in thermoelectrics is proposed in this paper. This technique is appropriate for single or multi-layered thermoelectric devices. A modulated laser beam is used as a heater in order to generate a Seebeck electromotive force (EMF). The laser beam, line shaped, can be focused at any location along the sample surface, allowing spatially resolved measurements. Seebeck EMF measurements, associated with a versatile model based on the thermal quadrupoles method, allow determination of the sample Seebeck EMF profile and identifying of the sample thermal contact resistances, and should be useful for identification of devices and material thermoelectric properties.< Réduire
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