PTE technique

The Photothermoelectric (PTE) effect is based on the Seebeck effect, where the heating is achieved by absorbing light on a thermoelectric (TE) material. Synonymous to PPE technique for thermal characterization of materials, PTE can be used to thermally characterize both thermoelectrics (acts as sensor and sample) and other sample materials (while acting as a sensor).[1] An advantage of such sensors stems from their wide temperature range of applicability since pyromaterials 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, comparatively large amount of heat (light excitation) has to be deposited on the material. As far as now, Frequency domain PTE technique is in its preliminary stage for the thermal characterization of materials. Advances were done in liquid thermoelectrics as well on PTE.[2] [3]

## References

1. ↑ 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): 044502–044502–6. doi:10.1063/1.4788674. ISSN 0021-8979. Bibcode: 2013JAP...113d4502K.
2. ↑ Dadarlat, D.; Tripon, C. (2019-06-01). "The photothermoelectric effect of liquid thermoelectrics as a tool for the detection of ferro–paraelectric phase transitions in solids" (in en). Journal of Thermal Analysis and Calorimetry 136 (5): 2165–2170. doi:10.1007/s10973-018-7887-2. ISSN 1588-2926.
3. ↑ Touati, Karim; Depriester, Michael; Guilmeau, Emmanuel; Sotelo, Andrés; Madre, Maria A; Gascoin, Franck; Sahraoui, Abdelhak Hadj (2017-06-13). "General approach of the photothermoelectric technique for thermal characterization of solid thermoelectric materials". Journal of Physics D: Applied Physics 50 (26): 265501. doi:10.1088/1361-6463/aa748d. ISSN 0022-3727. Bibcode: 2017JPhD...50z5501T.

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