Renew. Energy Environ. Sustain.
Volume 6, 2021
|Number of page(s)||7|
|Published online||03 March 2021|
Ultrasonic spray pyrolysis technique to generate a solar absorber coating of Mn-doped α-Fe2O3
Universidad Autónoma Metropolitana – Iztapalapa. Av. San Rafael Atlixco No. 186, Col. Vicentina, C.P. 09340. Alcaldía Iztapalapa, CDMX, México
2 Universidad de Guadalajara, Ameca Km. 45.5, C.P. 46600, Ameca, Jalisco, México
* e-mail: firstname.lastname@example.org
Received in final form: 7 February 2021
Accepted: 8 February 2021
Today, even though exist a Titanium Nitride Oxide, TiNOX, a very good commercial solar absorber, the efforts to develop new and better solar absorbers like TiNOX are continuing in several laboratories all over the world. In this article, we used the ultrasonic spray pyrolysis technique to prepare manganese, Mn, Mn-doped α-Fe2O3 dark thin films deposited on titanium substrates. The results of an analysis of the solar absorptance and thermal emittance of these films are also presented here; the optical properties depend of the proportions of Mn and iron, Fe, in the spray solution and of the deposit temperature. The best solar absorptance (0.94) and thermal emittance (0.07) values of the films prepared at 600 °C for iron and manganese ion with concentrations of 0.0015 and 0.0035 mol/l, respectively, are comparable with the optical properties of the Titanium Nitride oxide, TiNOX, a very common commercial solar absorber used as an efficient coating for flat plate solar collectors industry.
© C.D. Hernández-Pérez et al., published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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