Mirror-backed Dark Alumina: A Nearly Perfect Absorber for Thermoelectronics and Thermophotovotaics
dc.contributor.author | Farhat, Mohamed | |
dc.contributor.author | Cheng, Tsung-Chieh | |
dc.contributor.author | Le, Khai. Q. | |
dc.contributor.author | Cheng, Mark Ming-Cheng | |
dc.contributor.author | Bagci, Hakan | |
dc.contributor.author | Chen, Pai-Yen | |
dc.date.accessioned | 2016-01-31T14:49:12Z | |
dc.date.available | 2016-01-31T14:49:12Z | |
dc.date.issued | 2016-01-28 | |
dc.identifier.citation | Mirror-backed Dark Alumina: A Nearly Perfect Absorber for Thermoelectronics and Thermophotovotaics 2016, 6:19984 Scientific Reports | |
dc.identifier.issn | 2045-2322 | |
dc.identifier.pmid | 26817710 | |
dc.identifier.doi | 10.1038/srep19984 | |
dc.identifier.uri | http://hdl.handle.net/10754/595302 | |
dc.description.abstract | We 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.iso | en | |
dc.publisher | Springer Nature | |
dc.relation.url | http://www.nature.com/articles/srep19984 | |
dc.rights | This 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.title | Mirror-backed Dark Alumina: A Nearly Perfect Absorber for Thermoelectronics and Thermophotovotaics | |
dc.type | Article | |
dc.contributor.department | Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division | |
dc.contributor.department | Electrical Engineering Program | |
dc.identifier.journal | Scientific Reports | |
dc.eprint.version | Publisher's Version/PDF | |
dc.contributor.institution | Department of Mechanical Engineering, National Kaohsiung University of Applied Science (KUAS), Kaohsiung 80778, Taiwan, Republic of China | |
dc.contributor.institution | Department of Electrical Engineering, University of Minnesota, Duluth, Minnesota 55812, USA | |
dc.contributor.institution | Department of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202, USA | |
dc.contributor.affiliation | King Abdullah University of Science and Technology (KAUST) | |
kaust.person | Farhat, Mohamed | |
kaust.person | Bagci, Hakan | |
refterms.dateFOA | 2018-06-13T10:31:24Z | |
dc.date.published-online | 2016-01-28 | |
dc.date.published-print | 2016-04 |
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