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http://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/4398
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DC Field | Value | Language |
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dc.contributor.author | KM, A.K | - |
dc.contributor.author | Sony, S. | - |
dc.contributor.author | Dhingra, S. | - |
dc.contributor.author | Gupta, M. | - |
dc.date.accessioned | 2024-05-02T15:23:53Z | - |
dc.date.available | 2024-05-02T15:23:53Z | - |
dc.date.issued | 2024-05-02 | - |
dc.identifier.uri | http://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/4398 | - |
dc.description.abstract | olar−thermalfuels(STFs)basedon photoresponsivemolecules,whichcanharvestandstoresolarenergyby theconfigurationalchangeof moleculesandcan releaseit in the formof heaton demand,havebeeninvestigatedrecently.So far,azobenzenehas beenthe mostwidelystudiedmoleculefor theseapplications.However,untilnow,onlysolidand liquidderivativesofazobenzenehavebeenexploredwhichsufferfromseverallimitations.Here,we are reportingfor the firsttimevisible-lightresponsiveSTFsbasedon liquidcrystals(LCs).We havepreparedaseriesof compoundsbasedon azobenzeneandcholesterolwithvaryingspacerandortho-substitutionon azobenzene.All of thesederivativesexhibitenantiotropicchiralnematic(N*)mesophases.Moreover,theyshowedexcellentphotostability,photocyclability,and longhalf-lifetimesofcis-states.We havefurtherevaluatedthe thinfilmsof thesecompoundsfor charging,i.e.,transtocisconversionundersolarirradiationusingvariousbandpassfilters,andalsostudiedthe kineticsof the conversion.Thesecompoundsexhibiteda maximumchargingof up to 70%for the derivativewithortho-fluoroazobenzene.Thechargedthinfilmswerefurtherevaluatedfor theirheatreleasepropertiesby infrared(IR)thermalimaging.Themaximumheatreleaseobservedwasaround5.4°C fromthe surroundingtemperaturewhichwassignificantlyhigheras comparedto similarlysubstitutedazobenzene-basedderivativewithouta LC phase | en_US |
dc.language.iso | en_US | en_US |
dc.title | Visible-LightResponsiveAzobenzeneandCholesterolBased Liquid Crystalsas EfficientSolid-StateSolar−ThermalFuels | en_US |
dc.type | Article | en_US |
Appears in Collections: | Year-2023 |
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full text.pdf | 8.14 MB | Adobe PDF | View/Open Request a copy |
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