材料物理三班王瑞solarcell.pptx

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1、Topic:solar cellMaterials Physics Class threeMade by Wang RuicontentscontentsThe development of solar cells 1The manufacture of solar cells2The application of solar cells3The development direction of solar cells4The development of solar cellsPhoto Voltaic Effectdiscoversunlight1839vSemiconductor mat

2、erials N ElectronicP Cavitation1954The first monocrystalline silicon solar cell in history was made in The Bell Labs,The conversion efficiency of solar cells is 6 percent.115 years1958,silicion solar cells was applied to space1960s,the development of space solar cells has reached a relatively high l

3、evel 1970s,solar cells went into our daily lifeToo fast to catch?Classified by the grade of maturity of techniqueSilicon solar cellsThin film solar cellsNew concept solar cellsMonocrystalline Monocrystalline silicon solar silicon solar cellscellsPolycrystalline silicon solar cellsPolycrystalline thi

4、n film solar cells-Si,CIGS,CdTe.The third generation cellsHow does It been made?the manufacture of silicon ingotsPreparation of high-purity of molten siliconDipping seed crystalPulling the seed upward123step1The process of manufacturing:ThemeGallery is a Design Digital Content&Contents mall develope

5、d by Guild Design Inc.Step 2:the manufacture of silicon waferSlicing of the silicon ingot with a wire saw about 400km,the thickness is about 100 micronsThe process of manufacturing:Oven temperature:850The diffusion of some elements could change the conduction characteristic of metal.phosphorous diff

6、usion as well as arsenic and antimony is in order to forming N-type semiconductor Compared with phosphorous,boron,aluminum and gallium diffusion can forming P-type semiconductorStep 4 :plasma etchingRadio frequency edge attackStep 5:applying the ant-reflective coatingThe process of manufacturing:The

7、 process of manufacturing:Step 6:automatic cell testVoltage setting:480mAIrradiation:1000W/Automatic solar cell testerStep 7:serial cells stringThe process of manufacturing:Step 6:ultrasonnic string cleaningLast step:assemblingThe development of thin film solar cell is very fast,the products are var

8、ious,then,I will take the production line of An Well as a example to talk about it.The manufacture The manufacture processprocessLoading of substrateStep 1:glassceramicSilicon with poor qualityThe glasses are cheap and transparent,but the deposition temperature cant be high.Ceramic substrate is expe

9、nsive.Deposition temperature could reach a high level.Its easy to deposition high quality silicon thin film.its the best chooseSubstrate cleaningStep:2The manufacture processStep:3Sputtering of front TCOTCOStep 4:Laser scribeto isolate front TCO The manufacture processThis operation can isolate the

10、TCO into many parallel parts.It made its possible to improve the IPCE by string cells.Step 5:PECVD cluster toolThe manufacture process multi-chamber,multi-substrate,state-of-the art PECVD cluster toolStep 6:Laser scribe to isolate silicon layerThe manufacture processStep 7:Sputtering of back contact

11、Step 8:Laser scribe to isolate back contactback contactPNThe third laser scribe lineThe first laser scribe lineP-N junctionTCOglassStep 9:Pre-lamination cleaningThe manufacture processEnergy crisis is becoming the most serious problem we humans mast deal with in this century.The solar energy is most likely being the solution.monocrystal siliconPolycrystalsiliconThin film solar cellIPCE24161713The cost is higher than the thin film The trendsThe bigger,the better.Its my honor to stand here and give you a speech.Wish you could benefit form it and Im glade to hare your invaluable advise.