Polymer-basedthin-film luminescentsolarconcentrators(LSCs)currentlyrelyonpoly(methyl-metha- crylate)(PMMA)ashostmatrixmaterial.However,PMMA-basedLSCsstillsufferfromdegradationdueto the limitedphotostabilityofthepolymer.Inthiswork,anewcrosslinked fluoropolymer-basedsystemis presentedasapotentialalternativehostmatrixmaterialforthefabricationofdurablepolymer-basedLSC devices. Thenewhostmatrixsystemisobtainedbycrosslinkingafunctionalchloro-trifluoro-ethylene- vinyl-ethercopolymerwithanaliphaticisocyanuratecrosslinker.Itisshownthatefficiency values comparable tothoseobtainedwithoptimizedPMMA-basedthin film LSCdevicescanbereachedwith the newcrosslinked fluoropolymer-basedLSCsystem.Inaddition,superiorlong-termoperational stability comparedtoPMMA-baseddevicescanbeobtainedwiththenew fluoropolymer-basedhost matrix, asevidencedbylong-termcontinuouslightexposuretests(over500h)onoperatingLSCdevices. The resultsofthisworkdemonstratethatcrosslinked fluorinated polymersrepresentaclassofpromising host matrixmaterialstoachieveenvironmentallystableLSCdevices.
Novel crosslinked host matrices based on fluorinated polymers for long-term durability in thin-film luminescent solar concentrators.
GRIFFINI, GIANMARCO ENRICO;LEVI, MARINELLA;TURRI, STEFANO
2013-01-01
Abstract
Polymer-basedthin-film luminescentsolarconcentrators(LSCs)currentlyrelyonpoly(methyl-metha- crylate)(PMMA)ashostmatrixmaterial.However,PMMA-basedLSCsstillsufferfromdegradationdueto the limitedphotostabilityofthepolymer.Inthiswork,anewcrosslinked fluoropolymer-basedsystemis presentedasapotentialalternativehostmatrixmaterialforthefabricationofdurablepolymer-basedLSC devices. Thenewhostmatrixsystemisobtainedbycrosslinkingafunctionalchloro-trifluoro-ethylene- vinyl-ethercopolymerwithanaliphaticisocyanuratecrosslinker.Itisshownthatefficiency values comparable tothoseobtainedwithoptimizedPMMA-basedthin film LSCdevicescanbereachedwith the newcrosslinked fluoropolymer-basedLSCsystem.Inaddition,superiorlong-termoperational stability comparedtoPMMA-baseddevicescanbeobtainedwiththenew fluoropolymer-basedhost matrix, asevidencedbylong-termcontinuouslightexposuretests(over500h)onoperatingLSCdevices. The resultsofthisworkdemonstratethatcrosslinked fluorinated polymersrepresentaclassofpromising host matrixmaterialstoachieveenvironmentallystableLSCdevices.| File | Dimensione | Formato | |
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Griffini 2013 SOLMAT.pdf
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