Article
Improving the visible transmittance of low-e titanium nitride based coatings for solar thermal applications
Author/s | Yuste, Miriam
Escobar-Galindo, Ramón Carvalho, Sandra Albella Martín, José María Sánchez, Olga |
Department | Universidad de Sevilla. Departamento de Física Aplicada I |
Publication Date | 2011-12-15 |
Deposit Date | 2023-06-21 |
Published in |
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Abstract | Low-emissivity (low-e) coatings on glass are nowadays extensively used for energy saving applications in architectural windows and on solar thermal collectors. In this work the feasibility of TiN-based layers as low-e ... Low-emissivity (low-e) coatings on glass are nowadays extensively used for energy saving applications in architectural windows and on solar thermal collectors. In this work the feasibility of TiN-based layers as low-e coatings has been studied. TiN samples were deposited by reactive magnetron sputtering and, in order to improve their optical properties (transmission in the visible range, T and emissivity, ɛ), we have investigated the changes in optical response following three different approaches: (i) post-deposition annealing treatments up to 500 °C, (ii) doping the TiN layers with aluminium (target composition: Ti/Al = 90/10, 75/25 and 50/50) and (iii) deposition of antireflective coatings of TiO2 in multilayers structures. The crystalline structure and chemical composition of the multilayers were studied by X-Ray Diffraction and Rutherford Backscattering Spectroscopy, respectively. Spectroscopic Ellipsometry, Fourier Transform Infrared Spectroscopy and direct emissivity measurements were employed to determine the optical properties T and ɛ. We have concluded that the most noticeable improvement has been obtained by the deposition of multilayers structures increasing in a 30% the original transmittance of the single TiN coatings. |
Funding agencies | Ministerio de Ciencia e Innovación (MICIN). España |
Project ID. | CSD2008-00023 (FUNCOAT)
MAT2008-06618-C02-02 |
Citation | Yuste, M., Escobar-Galindo, R., Carvalho, S., Albella, J.M. y Sánchez, O. (2011). Improving the visible transmittance of low-e titanium nitride based coatings for solar thermal applications. Applied Surface Science, 258 (5), 1784-1788. https://doi.org/10.1016/j.apsusc.2011.10.046. |
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