Exceptional adaptable MWIR thermal emission for ordinary objects covered with thin VO2 film

Simple item page
buir.contributor.authorDurna, Yılmaz
buir.contributor.authorKocer, Hasan
buir.contributor.authorCakir, Mehmet Cihan
buir.contributor.authorSoydan, Mahmut Can
buir.contributor.authorOdabasi, Oguz
buir.contributor.authorIşık, Halil
buir.contributor.authorOzbay, Ekmel
buir.contributor.orcidDurna, Yılmaz|0000-0001-7083-5693
buir.contributor.orcidKocer, Hasan|0000-0003-4107-3014
buir.contributor.orcidCakir, Mehmet Cihan|0000-0001-6336-6569
buir.contributor.orcidSoydan, Mahmut Can|0000-0002-2593-3144
buir.contributor.orcidOdabasi, Oguz|0000-0002-2002-1488
buir.contributor.orcidOzbay, Ekmel|0000-0003-2953-1828
dc.citation.volumeNumber262en_US
dc.contributor.authorDurna, Yılmaz
dc.contributor.authorKocer, Hasan
dc.contributor.authorAydın, Koray
dc.contributor.authorCakir, Mehmet Cihan
dc.contributor.authorSoydan, Mahmut Can
dc.contributor.authorOdabasi, Oguz
dc.contributor.authorIşık, Halil
dc.contributor.authorOzbay, Ekmel
dc.date.accessioned2022-04-27T08:59:44Z
dc.date.available2022-04-27T08:59:44Z
dc.date.issued2021-01-25
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractMonotonous thermal radiation emitted from an ordinary object can be brought into a dynamic and versatile form that can be shaped according to the application area with the ingenious design of the surface coatings. Building the coatings with phase change materials provides exceptional and surprising properties in terms of tunability, adaptability and multifunctionality. In this paper, we investigate the thermal radiation properties in the MWIR band through comprehensive thermographic measurements and theoretical methods while a thin (similar to 90 nm thick) vanadium dioxide (VO2) layer on the sapphire substrate (VO2 thin film) is placed on different ordinary objects under heating/cooling conditions. It is indicated that the emission of the metal object (low emittance) can be boosted and the emission of the blackbody-like object (high emittance) can be suppressed at the relevant temperatures. The thermal emission of the objects covered with thin VO2 film at high temperatures (>75 degrees C) is determined by only the VO2 thin film, since the VO2 layer is completely metallized and the MWIR radiation of the underlying object is masked. When the actual temperature of the object behaving like a blackbody rises up to 95 degrees C, the temperature detected in the MWIR thermal camera is reduced by more than 20% to approx. 75 degrees C due to the VO2 thin film on this object, providing thermal camouflage. It is experimentally and theoretically revealed that the underlying physical mechanism on these strange results is associated with the drastic change in the infrared optical parameters of the VO2 as a result of the applied temperature. (C) 2020 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.jqsrt.2020.107500en_US
dc.identifier.eissn1879-1352
dc.identifier.issn0022-4073
dc.identifier.urihttp://hdl.handle.net/11693/78163
dc.language.isoEnglishen_US
dc.publisherElsevier Ltden_US
dc.relation.isversionofhttps://dx.doi.org/10.1016/j.jqsrt.2020.107500en_US
dc.source.titleJournal of Quantitative Spectroscopy & Radiative Transferen_US
dc.subjectThermal emissionen_US
dc.subjectThermographyen_US
dc.subjectThin filmen_US
dc.subjectVanadium dioxideen_US
dc.subjectPhase transitionen_US
dc.subjectThermal camouflageen_US
dc.titleExceptional adaptable MWIR thermal emission for ordinary objects covered with thin VO2 filmen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Exceptional_adaptable_MWIR_thermal_emission_for_ordinary_objects_covered_with_thin_VO2_film.pdf
Size:
3.03 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.69 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Nanotechnology Research Center (NANOTAM)
Department of Electrical and Electronics Engineering
Department of Physics
Institute of Materials Science and Nanotechnology (UNAM)