sreen printable aluminum paste for solar cell

SP7887SiliconSolarCellAluminiumPaste LEEDSP7887isanenvironmentaleletronicaluminiumpastedevelopedtoprovidebackcontactmetalizationforsolarcell,tomachwiththeTECofsiliconsubstratewell,ithasthefeaturesofgoodprintresolution,fineandsmoothsurface,highadhesion,lowbow,energyconversionefficiency. DataSheet SP7887 SolidsContent 70 85% Viscosity(Pa·S)(BrookfieldHBT,25,10rpm) 30 50 Fineness <15μm Screen(BOPPstainlesssteel) 250 280mesh Drying infraredstove,250 300°C/3min rotarydryfurnace,220°C/8 10min Firing 760 780°C/1 20seconds DriedThickness 35±3μm FiredThickness 25±3μm Resistivity(firedthickness) ≤30mΩ/£ CellWinding(125singlecrystalsilion,180μm) ≤1.2mm ≤1.25mm ≤1.5mm ≤0.8mm Adhesion(singlesideEVAadhesivetape) excellent PhotoelectricityConversionEfficiency Singlecrystalsilicon,averageconversionefficiency≥17.3 Polysilicon,averageconversionefficiency≥16.3 Thinner LEEDXS-08 Mainfeature excellentmultiple-function energyconversionefficiency highadhesion Smalldistortion RecommendedTechnicalInformation&Notice Printing: Itisrecommendedthelustrationgradeofapplianceandcircumstancetobemorethantemthousanddegree,itshouldbeguaranteethattheroomtemperatureandappliancetemperauteremains24±2°Cduringprinting.Keepstiritslowlyandfullybeforeusing.Iftakeoutoffromiceboxoricehousefirstly,pleaseplaceitintheprintinghouseuntilitreturntoroomtemperature. Drying: Itcanbedriedbothininfraredstoveandrotarydryfurnace,thepeaktemperatureofdryingis250 300degreecentigrade,thedryingtimecanberegulatedaccordingdryingsituation. Firing: Firingisoneofmostimporantdataforaffectingtheperformanceofpaste.Thefiringneedtouseflashfiringtechnics,thepeaktemperaturecanberegulatedaccordingthequalityoffiredthickness. Thinning: Thecompositionisoptimizedforscreenprintingandthinningisnotnormallyrequired.UsetheLEEDrecommendedthinnerforlaighadjustmentstoviscosityoftoreplaceevaporationlosses.Theuseoftoomuchthinnerortheuseofanonrecommendedthinnermayaffecttherheologicalbehaviorofthematerialanditsprintingchracteristics,andstirfullyafterthinning. Compatibility: Itisthereforeessentialthatcustomersthoroughlyevaluatethematerialintheirspecificsiuationsinordertocompletelysatisfythemselveswiththeoverallqualityandsuitabilityofthecompositionforitsintendedapplications. TransportationandStorage: Duringtransportationandstorageshouldprotectagainstthetideandcontamination.Containersmaybestoredinaclean,dryandstableenvironmentatroomtemperature(between5°C 20°C),withtheirlidstightlysealed.