Sensing Properties of Metamaterials Utilized as Self-Cleaning Coating for Solar Mirrors

Towards the "Talking Mirror"




Self-Cleaning Coatings, Solar Mirrors, Sensors


In this work the experimental activity conducted on self-cleaning sensitive metamaterial coatings for solar mirrors is described. The aim of the research activity is the modulation of solar mirrors wettability in order to reduce water consumption in ordinary cleaning operation and, consequently, maintenance costs, as well as the addition of sensoring properties to the mirrors for the remote acquisition of their performance. In particular, cermet metamaterials and hybrid polymers have been selected as matrices and doped with conductive particles. Considering that in the most part of solar mirrors architectures the external layer consists of an amphiphobic alumino-silicate, which has a wetting contact angle (WCA*) of around 50°, in this work different “silica-like” based coatings have been fabricated by means of sputtering deposition (for inorganic cermet metamaterials) and spraying (for polymers ) with the aim of obtaining a more hydrophobic behavior (WCA > 90° can halve the amount of water required for mirrors cleaning), preserving mirrors optical properties and exhibiting, at the same time, electrical properties suitable to sensoring purpose.


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R. Musi, B.Grange, S. Sgouridis, R. Guedez, P. Armstrong, A. Slocum, and N. Calvet AIP Conference Proceedings 1850, 160018 (2017) DOI

T. Sarver Ali Al-Qaraghuli, Lawrence L. Kazmerski,Renewable and Sustainable Energy Reviews, 22 (2013), Pp. 698-733,

F.Schwarberg, M. Schiller, 2012. Enhanced Solar Mirrors With antisoiling coating. Proceedings of the SolarPACES conference, Marrakech. 2012

J. Wette, F.Sutter, F. Buendia-Martinez, A. Fernandez-Garcia, AIP Conference Proceedings 2303, 150016 (2020).

A.C. do Amaral Burghi, T. Hirsch, and R. Pitz-Paal. Energies 13, (6) (2020). 1517.

A. Castaldo, E. Gambale, G. Vitiello, Energies 14(20) (2021), 6668.

A. Castaldo, E. Gambale, G. Vitiello, (2021) REPORT ENEA RdS/PTR2021/LA1.24, ENEA Press.

A. P. Gonzalo, A. P. Marugán, F. P. García Márquez, Applied Energy, 255 (2019) 113893. DOI:

F. Wiesinger, F. Sutter, A. Fernández-García, J. Wette, F. Wolfertstetter, N. Hanrieder, Martin Schmücker, R. Pitz-Paal, Applied Energy, 268, (2020),114925.

Anna Castaldo, E. Gambale, G. Vitiello, SolarPACES 2021, ONLINE CONFERENCE, 27-29/09/2021




How to Cite

Castaldo, A., Gambale, E., Lanchi, M., Vitiello, G., & Turchetti, L. (2023). Sensing Properties of Metamaterials Utilized as Self-Cleaning Coating for Solar Mirrors : Towards the "Talking Mirror". SolarPACES Conference Proceedings, 1.

Conference Proceedings Volume


Advanced Materials, Manufacturing, and Components