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New Highly Efficient Performance Dyes for Dye-sensitized Solar Cells  
New Highly Efficient Performance Dyes for Dye-sensitized Solar Cells
資料類型: PDF文件
關(guān)鍵詞: dye-sensitized  solar  cells  quinacridone  diketopyrrolopyrrole  isoindigo  
資料大?。?/td> 485K
所屬學(xué)科: 功能高分子
來源: 來源網(wǎng)絡(luò)
簡介:
Thesensitizerisacrucialelementindye-sensitizedsolarcells(DSSCs).exertingsignificantinfluenceonthepowerconversionefficiencyaswellasthestabilityofthecells.Generally,organicdyesusedforefficientsolarcellsarerequiredtopossesshighchargecarriermobilityandbroadandintensespectralabsorptioninthevisiblelightregions.Diketopyrrolopyrrole(DPP),quinacridone(QAD),andisoindigo(IID)arewell-knownorganicpigmentswithexceptionallight,weatherandheatstabilityandare,therefore,usedinindustrialapplicationsashighperformancepigmentsinpaints,plastics,andinks.Inthiswork,threeseriesmetal-freedyes(Schemel)withaDPP,QAD,andIIDcoreweredesignedandsynthesizedforDSSCs.Theirabsorptionproperties,electrochemicalandphotosensitizationpropertieswereinvestigatedsystematically.ThepreliminaryresultsshowthattheDSSCsbasedonthedyeQADshowedthebetterphotovoltaicperformance:ashort-circuitphotocurrentdensity(J,,,)of13.25mA/cm2.anopen-circuitphotovoltage(Vo.)of804mV,andafillfactor(FF)of0.73.correspondingtoanoverallconversionefficiencyof7.7%understandardglobalAM1.5solarconditions.
上傳人: liu
上傳時間: 2013-10-15 15:10:09
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