材料物理三班王瑞solarcellppt课件

1、Topic: solar cellMaterials Physics Class threeMade by Wang Rui:The development of solar cells 1The manufacture of solar cells2The application of solar cells3The development direction of solar cells4:The development of solar cellsPhoto Voltaic Effectdiscoversunlight1839vSemiconductor materials N Elec

2、tronicP Cavitation1954The first monocrystalline silicon solar cell in history was made in The Bell Labs, The conversion efficiency of solar cells is 6 percent. 115 years:1958,silicion solar cells was applied to space1960s,the development of space solar cells has reached a relatively high level 1970s

3、,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 cellsPolycrystalline silicon solar cellsPolycrystalline thin film solar cells-Si,CIGS,CdTe.The third generation cells:How does It been mad

4、e? 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 developed by Guild Design Inc.:Step 2:the manufacture of silicon waferSlicing o

5、f the silicon ingot with a wire saw about 400km,the thickness is about 100 microns:The process of manufacturing:Oven temperature :850The diffusion of some elements could change the conduction characteristic of metal. phosphorous diffusion as well as arsenic and antimony is in order to forming N-type

6、 semiconductor Compared with phosphorous, boron, aluminum and gallium diffusion can forming P-type semiconductor:Step 4 :plasma etchingRadio frequency edge attackStep 5:applying the ant-reflective coating:The process of manufacturing:The process of manufacturing:Step 6: automatic cell testVoltage se

7、tting :480mAIrradiation :1000W/Automatic solar cell testerStep 7:serial cells stringThe process of manufacturing:Step 6:ultrasonnic string cleaningLast step : assembling:The development of thin film solar cell is very fast ,the products are various , then, I will take the production line of An Well

8、as a example to talk about it.:The manufacture processLoading of substrateStep 1:glassceramicSilicon with poor qualityThe glasses are cheap and transparent ,but the deposition temperature cant be high.Ceramic substrate is expensive. Deposition temperature could reach a high level. Its easy to deposi

9、tion high quality silicon thin film . its the best choose:Substrate cleaningStep:2The manufacture processStep:3Sputtering of front TCOTCO:Step 4:Laser scribeto isolate front TCO The manufacture processThis operation can isolate the TCO into many parallel parts. It made its possible to improve the IP

10、CE by string cells.:Step 5:PECVD cluster toolThe manufacture process multi-chamber , multi-substrate , state-of-the art PECVD cluster tool:Step 6:Laser scribe to isolate silicon layerThe manufacture processStep 7:Sputtering of back contactStep 8:Laser scribe to isolate back contactback contactPNThe

11、third laser scribe lineThe first laser scribe lineP-N junctionTCOglass:Step 9:Pre-lamination cleaningThe manufacture process:Energy 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 th