材料物理三班王瑞solarcell

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1、Topic:solarcellMaterialsPhysicsClassthreeMadebyWangRuicontentsThedevelopmentofsolarcells1Themanufactureofsolarcells2Theapplicationofsolarcells3Thedevelopmentdirectionofsolarcells4EdmundBecquerelThedevelopmentofsolarcellsPhotoVoltaicEffectdiscoversunlight1839vSemiconductormaterialsNElectroni

2、cPCavitation1954ThefirstmonocrystallinesiliconsolarcellinhistorywasmadeinTheBellLabs,Theconversionefficiencyofsolarcellsis6percent.115yearsThedevelopmentofsolarcells1958,silicionsolarcellswasappliedtospace1960s,thedevelopmentofspacesolarcellshasreachedarelativelyhighlevel1970s,solarcellswen

3、tintoourdailylifeToofasttocatch?TheclassificationofsolarcellsClassifiedbythegradeofmaturityoftechniqueSiliconsolarcellsThinfilmsolarcellsNewconceptsolarcellsMonocrystallinesiliconsolarcellsPolycrystallinesiliconsolarcellsPolycrystallinethinfilmsolarcellsα-Si,CIGS,CdTe…..Thethirdgenerationce

4、lls(Ⅰ):MonocrystallinesiliconsolarcellHowdoesItbeenmade?themanufactureofsiliconingotsPreparationofhigh-purityofmoltensiliconDippingseedcrystalPullingtheseedupward123step1ⅠTheprocessofmanufacturing:ThemeGalleryisaDesignDigitalContent&ContentsmalldevelopedbyGuildDesignInc.Theprocessofmanufact

5、uring:Step2:themanufactureofsiliconwaferSlicingofthesiliconingotwithawiresawabout400km,thethicknessisabout100micronsStep3:phosphorousdiffusionTheprocessofmanufacturing:Oventemperature:850℃Thediffusionofsomeelementscouldchangetheconductioncharacteristicofmetal.phosphorousdiffusionaswellasars

6、enicandantimonyisinordertoformingN-typesemiconductorComparedwithphosphorous,boron,aluminumandgalliumdiffusioncanformingP-typesemiconductorTheprocessofmanufacturingStep4:plasmaetchingRadiofrequencyedgeattackStep5:applyingtheant-reflectivecoatingStep6:screenprintingmetallizationUsingsilverand

7、aluminumpastesTheprocessofmanufacturing:Standard:12-cellsastringTheprocessofmanufacturing:Step6:automaticcelltestVoltagesetting:480mAIrradiation:1000W/㎡AutomaticsolarcelltesterStep7:serialcellsstringTheprocessofmanufacturing:Step6:ultrasonnicstringcleani