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1、晶硅太阳能电池组件—背板材料产品技术原材料测试方法及质量问题...本文由sgne贡献doc文档可能在WAP端浏览体验不佳。建议您优先选择TXT，或下载源文件到本机查看。ChemicaltreatmentofcrystallinesiliconsolarcellsasamethodofrecoveringpuresiliconfromphotovoltaicmodulesRenewableEnergyPhotovoltaictechnologyisusedworldwidetoprovidereliableandcost-effectiveelectricityforind
2、ustrial,commercial,residentialandcommunityapplications.TheaveragelifetimeofPVmodulescanbeexpectedtobemorethan25years.ThedisposalofPVsystemswillbecomeaprobleminviewofthecontinuallyincreasingproductionofPVmodules.Thesecanberecycledforaboutthesamecostastheirdisposal.Photovoltaicmodulesincrys
3、tallinesiliconsolarcellsaremadefromthefollowingelements,inorderofmass:glass,aluminiumframe,EVAcopolymertransparenthermetisinglayer,photovoltaiccells,installationbox,Tedlarprotectivefoilandassemblybolts.Fromaneconomicpointofview,takingintoaccountthepriceandsupplylevel,puresilicon,whichcanb
4、erecycledfromPVcells,isthemostvaluableconstructionmaterialused.Recoveringpuresiliconfromdamagedorend-of-lifePVmodulescanleadtoeconomicandenvironmentalbenefits.Becauseofthehighqualityrequirementfortherecoveredsilicon,chemicalprocessingisthemostimportantstageoftherecyclingprocess.Thechemica
5、ltreatmentconditionsneedtobepreciselyadjustedinordertoachievetherequiredpurityleveloftherecoveredsilicon.ForPVsystemsbasedoncrystallinesilicon,aseriesofetchingprocesseswascarriedoutasfollows:etchingofelectricconnectors,anti-reflectivecoatingandn-pjunction.Thechemistryofetchingsolutionswas
6、individuallyadjustedforthedifferentsiliconcelltypes.Effortsweremadetoformulateauniversalcompositionfortheetchingsolution.Theprincipaltaskatthispointwastooptimisetheetchingtemperature,timeandalkaliconcentrationinsuchawaythatonlyasmuchsiliconwasremovedasnecessary.Engineering,institutions,an
7、dthepublicinterest:EvaluatingproductqualityintheKenyansolarphotovoltaicsindustryEnergyPolicySolarsalesinKenyaareamongthehighestpercapitaamongdevelopingcountries.WhilethiscommercialsuccessmakestheKenyamarketagloballeader,productqualityproblemshavebeenapersistentconce
