Thin films of various borides, nitrides, and barium fluorides were tentatively deposited by pulsed laser deposition and by magnetron sputtering in order to develop the components of thermionic-photovoltaic devices for the high-temperature thermal to electrical conversion by solid state. To improve the device performance, the materials characterized by a low work function were selected. In the present work, the chemical composition and work function of obtained films were investigated by X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy techniques. The values of work function were determined from the cut-off in the He I valence band spectra. Different films were compared and estimated on the basis of X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy results.

Investigation of work function and chemical composition of thin films of borides and nitrides / Mezzi, A.; Soltani, P.; Kaciulis, S.; Bellucci, A.; Girolami, M.; Mastellone, M.; Trucchi, D. M.. - In: SURFACE AND INTERFACE ANALYSIS. - ISSN 0142-2421. - 50:11(2018), pp. 1138-1144. [10.1002/sia.6442]

Investigation of work function and chemical composition of thin films of borides and nitrides

Mastellone, M.;
2018

Abstract

Thin films of various borides, nitrides, and barium fluorides were tentatively deposited by pulsed laser deposition and by magnetron sputtering in order to develop the components of thermionic-photovoltaic devices for the high-temperature thermal to electrical conversion by solid state. To improve the device performance, the materials characterized by a low work function were selected. In the present work, the chemical composition and work function of obtained films were investigated by X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy techniques. The values of work function were determined from the cut-off in the He I valence band spectra. Different films were compared and estimated on the basis of X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy results.
Borides; Nitrides; Thermionic-photovoltaic; UPS; Work function; Chemistry (all); Condensed Matter Physics; Surfaces and Interfaces; Surfaces, Coatings and Films; Materials Chemistry2506 Metals and Alloys
01 Pubblicazione su rivista::01a Articolo in rivista
Investigation of work function and chemical composition of thin films of borides and nitrides / Mezzi, A.; Soltani, P.; Kaciulis, S.; Bellucci, A.; Girolami, M.; Mastellone, M.; Trucchi, D. M.. - In: SURFACE AND INTERFACE ANALYSIS. - ISSN 0142-2421. - 50:11(2018), pp. 1138-1144. [10.1002/sia.6442]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1179164
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