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Title

Thermoelectric Cu-Se chalcogenides deposited by Pulsed Hybrid Reactive Magnetron Sputtering (PHRMS)

AuthorsFlores, Eduardo; Caballero-Calero, Olga ; Briones Fernández-Pola, Fernando ; Martín-González, Marisol
Issue Date5-Sep-2019
Citation2nd Iberian Thermoelectric Workshop (2019)
AbstractNowadays, the research to find semiconducting materials for energy conversion applications has raised a huge interest in the scientific community. Particularly, a high number of investigations are focused to find suitable compounds for thermoelectric applications[1]. In this work, we report a detailed investigation about the deposition of 4 different Cu-Se chalcogenides films (amorphous CuSe, hexagonal CuSe, cubic Cu7Se4, cubic Cu2Se) on flexible polycarbonate substrates by using PHRMS, a novel semiconductor thin film deposition technique developed in our lab that allows the growth at room temperature (RT) and in a few minutes of many metal selenides (Ag-Se, Cu-Se, Sn-Se, …) with different compositions[2,3]. The obtained films were characterized by X-ray diffraction (XRD), energy dispersive analysis of X-ray (EDX) and scanning electron microscopy (SEM-FEG). The transport properties (Seebeck coefficient, resistivity and mobility carriers) were measured from room temperature up to 100ºC. All the four compounds investigated show p-type conductivity with different values of the Seebeck coefficient (ranging from +10V/K to +450V/K), resistivities measured at RT from 10-4 to 100 cm and a maximum power factor (PF) of the order of 0.15mWm-1K-2.
DescriptionTrabajo presentado en el 2nd Iberian Thermoelectric Workshop (ITW2019), celebrado en Ciudad Real (España), del 5 al 6 de septiembre de 2019
URIhttp://hdl.handle.net/10261/203346
Appears in Collections:(IMN-CNM) Comunicaciones congresos
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