Radiative heat pumping from the earth using surface phonon resonant nanoparticles

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dc.contributor.author Gentle, Angus en_US
dc.contributor.author Smith, Geoffrey en_US
dc.contributor.editor en_US
dc.date.accessioned 2011-02-07T06:23:56Z
dc.date.available 2011-02-07T06:23:56Z
dc.date.issued 2010 en_US
dc.identifier 2009004555 en_US
dc.identifier.citation Gentle Angus and Smith Geoffrey 2010, 'Radiative heat pumping from the earth using surface phonon resonant nanoparticles', American Chemical Society, vol. 10, no. NA, pp. 373-379. en_US
dc.identifier.issn 1530-6984 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/13699
dc.description.abstract Nanoparticles that have narrow absorption bands that lie entirely within the atmosphere?s transparent window from 7.9 to 13 ?m can be used to radiatively cool to temperatures that are well below ambient. Heating from incoming atmospheric radiation in the remainder of the Planck radiation spectrum, where the atmosphere is nearly ?black?, is reduced if the particles are dopants in infrared transmitting polymers, or in transmitting coatings on low emittance substrates. Crystalline SiC nanoparticles stand out with a surface phonon resonance from 10.5 to 13 ?m clear of the atmospheric ozone band. Resonant SiO2 nanoparticles are complementary, absorbing from 8 to 10 ?m, which includes atmospheric ozone emissions. Their spectral location has made SiC nanoparticles in space dust a feature in ground-based IR astronomy. Optical properties are presented and subambient cooling performance analyzed for doped polyethylene on aluminum. A mixture of SiC and SiO2 nanoparticles yields high performance cooling at low cost within a practical cooling rig. en_US
dc.language en_US
dc.publisher American Chemical Society en_US
dc.relation.isbasedon http://dx.doi.org/10.1021/nl903271d en_US
dc.title Radiative heat pumping from the earth using surface phonon resonant nanoparticles en_US
dc.parent Nano Letters en_US
dc.journal.volume 10 en_US
dc.journal.number 2 en_US
dc.publocation United States en_US
dc.identifier.startpage 373 en_US
dc.identifier.endpage 379 en_US
dc.cauo.name SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.for 091200 en_US
dc.personcode 000307 en_US
dc.personcode 730312 en_US
dc.percentage 100 en_US
dc.classification.name Materials Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Surface phonon resonance; radiative sky cooling; SiC nanoparticles; SiO2 nanoparticles; spectral selective emittance en_US
dc.staffid en_US
dc.staffid 730312 en_US

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