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1、CurrentStatusandFutureTrendsofAmorphousSiliconSolarCellsMasahiroSakuraiToshiakiSakai1.IntroductiontionRoadmapforYear2030(PV2030)”whichisalong-termstrategyfortechnicaldevelopmentfrom2004TheKyotoProtocolforpreventingglobalwarmingthrough2030.Here,itisassumedthatbythe2030,wasadoptedattheC
2、onferenceofPartiesIII(COP3)ofphotovoltaicpowergenerationwillprovideapproxi-TheUnitedNationsFrameworkConventiononCli-matelyone-halfoftheelectricpowerforhousehold-usemateChangeheldinKyoto,JapaninDecember1997.(approximately100GWasaphotovoltaicpowergener-ThisProtocolestablishednumericalta
3、rgetsforreduc-atingsystem),andtherefore,technicalinnovationandinggreenhousegasemissionsin2010foreachofthesystemusehavebeenstudiedinordertoimproveparticipatingindustrializedcountries.InFebruaryeconomicefficiencyandtoexpandapplicability.2005,theKyotoProtocolwasenactedandfull-scaleMeanwh
4、ile,theproductionofsolarcellshasin-effortsbegantoreducecarbondioxide(CO2)emissions,creaseddramaticallysince1997,andtheproducedandsubsequenteffortstointroducenewenergyhavingcapacityof288MWin2000hasundergoneamorealowimpactontheenvironmentareexpectedtothan6.1-foldincreaseto1,759MWby2005.
5、Japanbecomeinvigorated.accountsfor833MWorapproximately47%oftheAmongthetypesofnewenergy,photovoltaicpowertotalproductionquantity.Figure1showstheshareofgenerationsystemsemitnoCO2whilegeneratingtotalsolarcellproductionbycountry.Ofthesolarcellspower,andtheirwidespreaduseishighlyanticipate
6、d.producedin2005,crystallinesilicon(Si)solarcellsTheJapanesegovernmentispromotingadoptionofaccountedfor84%,andthinfilmSiaccountedfornewenergybyadopting:approximately14%,butduetotheproblemofdeple-(1)measuresinvolvingpowergeneration(qexpand-tionofSirawmaterial,theshareofamorphoussilicon
7、edadoptionbythepublicsector,andwtechnical(a-Si)andCIS(copper-indium-selenium)solarcellsisdevelopmenttopromotelowercost,highereffi-expectedtoincrease.ciency,etc.)FujiElectricbeganresearchanddevelopmenton(2)measuresinvolvingheat(qcomprehensiveplansa-Sisolarcellsin1978.In1980,Fujisuccess
8、fully