Show simple item record

dc.contributor.authorFarhat, Mohamed
dc.contributor.authorCheng, Tsung-Chieh
dc.contributor.authorLe, Khai. Q.
dc.contributor.authorCheng, Mark Ming-Cheng
dc.contributor.authorBagci, Hakan
dc.contributor.authorChen, Pai-Yen
dc.date.accessioned2016-01-31T14:49:12Z
dc.date.available2016-01-31T14:49:12Z
dc.date.issued2016-01-28
dc.identifier.citationMirror-backed Dark Alumina: A Nearly Perfect Absorber for Thermoelectronics and Thermophotovotaics 2016, 6:19984 Scientific Reports
dc.identifier.issn2045-2322
dc.identifier.pmid26817710
dc.identifier.doi10.1038/srep19984
dc.identifier.urihttp://hdl.handle.net/10754/595302
dc.description.abstractWe present here a broadband, wide-angle, and polarization-independent nearly perfect absorber consisting of mirror-backed nanoporous alumina. By electrochemically anodizing the disordered multicomponent aluminum and properly tailoring the thickness and air-filling fraction of nanoporous alumina, according to the Maxwell-Garnet mixture theory, a large-area dark alumina can be made with excellent photothermal properties and absorption larger than 93% over a wide wavelength range spanning from near-infrared to ultraviolet light, i.e. 250 nm–2500 nm. The measured absorption is orders of magnitude greater than other reported anodized porous alumina, typically semi-transparent at similar wavelengths. This simple yet effective approach, however, does not require any lithography, nano-mixture deposition, pre- and post-treatment. Here, we also envisage and theoretically investigate the practical use of proposed absorbers and/or photothermal converters in integrated thermoelectronic and/or thermophotovoltaic energy conversion devices, which make efficient use of the entire spectrum of ambient visible to near-infrared radiation.
dc.language.isoen
dc.publisherSpringer Nature
dc.relation.urlhttp://www.nature.com/articles/srep19984
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
dc.titleMirror-backed Dark Alumina: A Nearly Perfect Absorber for Thermoelectronics and Thermophotovotaics
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalScientific Reports
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Mechanical Engineering, National Kaohsiung University of Applied Science (KUAS), Kaohsiung 80778, Taiwan, Republic of China
dc.contributor.institutionDepartment of Electrical Engineering, University of Minnesota, Duluth, Minnesota 55812, USA
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202, USA
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personFarhat, Mohamed
kaust.personBagci, Hakan
refterms.dateFOA2018-06-13T10:31:24Z
dc.date.published-online2016-01-28
dc.date.published-print2016-04


Files in this item

Thumbnail
Name:
srep19984.pdf
Size:
1.721Mb
Format:
PDF
Description:
Main article

This item appears in the following Collection(s)

Show simple item record