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The Photothermoelectric (PTE) effect is based on the Seebeck effect but here the heating is achieved by absorbing light on the top of a thermoelectric (TE) material. Synonymous to PPE technique for thermal characterization of materials, PTE sensors can also be utilized for finding the thermal transport properties of materials. The particular advantage of such sensors stems from their wide temperature range of applicability since pyro materials are limited to its curie temperature. On the other hand, in order to obtain a useful signal from TE material, depends on its Seebeck coefficient, sufficiently large amount of heat has to be applied to the material. As far as now, Frequency domain PTE technique is in its preliminary stage for the thermal characterization of materials.
- Kuriakose, Maju; Depriester, Michael; Chan Yu King, Roch; Roussel, Frédérick; Hadj Sahraoui, Abdelhak (2013). "Photothermoelectric effect as a means for thermal characterization of nanocomposites based on intrinsically conducting polymers and carbon nanotubes". Journal of Applied Physics. 113 (4): 044502. ISSN 0021-8979. doi:10.1063/1.4788674.