Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300235 |
Resumo: | Selective surfaces have the function of absorbing strongly the sunlight, while ideally losing little heat to the environment via convection and radiation. The present study sought to obtain a selective surface of black chromium coated with an antireflective (AR) layer based on sugarcane bagasse ash using copper as a substrate. From this selective surface the electrodeposition parameters (time, working distance, voltage) as well as the surface behavior were analyzed in order to determine if the AR layer provided an increase in the absorption levels of the film. By means of the present study it was possible to conclude that, in terms of the electrodeposition parameters evaluated, the anode-cathode distance of 5 cm stimulated the obtaining of higher levels of absorption. The addition of the antireflective layer on the black chromium films favored the increase of the absortance average in all the adopted parameter sets, besides reducing the standard deviation around the average. As for the microstructure of the obtained films, the increase of the parameter Ra promoted the increase of the absorption, due to the formation of optical traps. |
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Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromiumresidual silicaantireflective layerselective surfacesblack chromiumsolar energySelective surfaces have the function of absorbing strongly the sunlight, while ideally losing little heat to the environment via convection and radiation. The present study sought to obtain a selective surface of black chromium coated with an antireflective (AR) layer based on sugarcane bagasse ash using copper as a substrate. From this selective surface the electrodeposition parameters (time, working distance, voltage) as well as the surface behavior were analyzed in order to determine if the AR layer provided an increase in the absorption levels of the film. By means of the present study it was possible to conclude that, in terms of the electrodeposition parameters evaluated, the anode-cathode distance of 5 cm stimulated the obtaining of higher levels of absorption. The addition of the antireflective layer on the black chromium films favored the increase of the absortance average in all the adopted parameter sets, besides reducing the standard deviation around the average. As for the microstructure of the obtained films, the increase of the parameter Ra promoted the increase of the absorption, due to the formation of optical traps.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300235Materials Research v.22 n.3 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0750info:eu-repo/semantics/openAccessMedeiros,Ithyara Dheylle MachadoGonçalves,Ronny Peterson da NobregaMenezes,Valeska LisandraGalvão,Gabriela OliveiraGomes,Kelly Cristianeeng2019-05-30T00:00:00Zoai:scielo:S1516-14392019000300235Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-05-30T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium |
title |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium |
spellingShingle |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium Medeiros,Ithyara Dheylle Machado residual silica antireflective layer selective surfaces black chromium solar energy |
title_short |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium |
title_full |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium |
title_fullStr |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium |
title_full_unstemmed |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium |
title_sort |
Evaluation of Potential Residual Silica as Antireflective Layer for Selective Solar Surface of Black Chromium |
author |
Medeiros,Ithyara Dheylle Machado |
author_facet |
Medeiros,Ithyara Dheylle Machado Gonçalves,Ronny Peterson da Nobrega Menezes,Valeska Lisandra Galvão,Gabriela Oliveira Gomes,Kelly Cristiane |
author_role |
author |
author2 |
Gonçalves,Ronny Peterson da Nobrega Menezes,Valeska Lisandra Galvão,Gabriela Oliveira Gomes,Kelly Cristiane |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Medeiros,Ithyara Dheylle Machado Gonçalves,Ronny Peterson da Nobrega Menezes,Valeska Lisandra Galvão,Gabriela Oliveira Gomes,Kelly Cristiane |
dc.subject.por.fl_str_mv |
residual silica antireflective layer selective surfaces black chromium solar energy |
topic |
residual silica antireflective layer selective surfaces black chromium solar energy |
description |
Selective surfaces have the function of absorbing strongly the sunlight, while ideally losing little heat to the environment via convection and radiation. The present study sought to obtain a selective surface of black chromium coated with an antireflective (AR) layer based on sugarcane bagasse ash using copper as a substrate. From this selective surface the electrodeposition parameters (time, working distance, voltage) as well as the surface behavior were analyzed in order to determine if the AR layer provided an increase in the absorption levels of the film. By means of the present study it was possible to conclude that, in terms of the electrodeposition parameters evaluated, the anode-cathode distance of 5 cm stimulated the obtaining of higher levels of absorption. The addition of the antireflective layer on the black chromium films favored the increase of the absortance average in all the adopted parameter sets, besides reducing the standard deviation around the average. As for the microstructure of the obtained films, the increase of the parameter Ra promoted the increase of the absorption, due to the formation of optical traps. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300235 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300235 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2018-0750 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.22 n.3 2019 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212674807267328 |