太陽能電池中英文對照外文翻譯文獻(xiàn)

(文檔含英文原文和中文翻譯)中英文翻譯英文原文HistoricalReviewofSolarEnergySolargenerallyreferstothesunsradiationenergy.CarriedoutinthesolarinteriorfromHtogetherintoaheliumthenuclearreaction,keptahugereleaseofenergy,andcontinuetothespaceradiationenergy,whichissolarenergy.Thissolarnuclearfusionreactioninsidethecantomaintainthehundredsofmillionsoffirsttime.Solarradiationtospacelaunch3.8x10^23kWpoweroftheradiation,ofwhich20billionthoftheEarthsatmospheretoreach.SolarenergyreachingtheEarthsatmosphere,30%oftheatmospherereflectance,23%ofatmosphericabsorption,andtheresttoreachtheEarthssurface.Itspowerof80trillionkW,thatistosayasecondexposuretothesunsenergyonEarthisequivalenttofivemilliontonsofcoalcombustionheatrelease.Theaveragepersquaremeterintheatmosphereoutsidetheareaofenergyperminutetoreceiveabout1367w.Abroadsenseofthesolarenergyonearthmanysources,suchaswindenergy,chemicalenergy,potentialenergyofwaterandsoon.Thenarrowsenseislimitedtosolarradiationofsolarlightthermal,photovoltaicandphotochemicalconversionofthedirectly.Atthisstage,theworldssolarenergyisstillthefocusofthestudyofsolarenergypowerplant,butthediversificationoftheuseofthecondenser,andtheintroductionofflat-platecollectorandalowboilingpointworkingfluid,thedevicegraduallyexpandeduptomaximumoutputpower73.64kW,ObjectiveTocomparetheclearandpractical,costremainshigh.Theconstructionofatypicaldeviceareasfollows:1901,Californiabuiltasolar-poweredpumpingdevices,theuseoftruncatedconecondenserpower:7.36kW;1902~1908years,builtintheUnitedStatesfivesetsofdouble-cyclesolar-poweredengines,theuseofflat-panelcollectorandalowboilingpointworkingfluid;in1913,Humanuseofsolarenergyhasalonghistory.Chinamorethan2000yearsago,backintheWarringStatesperiod,onewillfindthattheuseoffoursteelmirrortofocussunlightignition;useofsolarenergytodryagriculturalproducts.Thedevelopmentofmodern,solarenergyhasbecomeincreasinglywidespreaduse,itincludestheuseofsolarenergysolarthermal,solarphotovoltaicandsolarenergyuse,suchasthephotochemicaluse.Theuseofsolarphotochemicalreaction,apassiveuse(photo-thermalconversion)andthephotoelectricconversionintwoways.Anewsolarpowerandrenewablesourcesofenergyuse.SiliconphotovoltaiccellsmainlyintheabsorptionofsolarlightenergyemittedbysiliconphotocellismainlyextractedfromthesandbythedevelopmentofBellLabs.Solarenergyistheinternalorthesurfaceofthesunsunspotcontinuousprocessofnuclearfusionreactionsproduceenergy.Earthsorbitontheaveragesolarradiationintensityforthe1367w/㎡.CircumferenceoftheEarthsequatorto40000km,andthuscalculatedtheEarthsenergycanbeobtained173000TW.Atsealevelstandardforpeakintensity1kw/m2,apointontheEarthssurface24hoftheannualaverageradiationintensity0.20kw/㎡,whichisequivalenttohave102000TWenergyHumandependenceontheseenergytosurvive,includingallotherformsofrenewableenergy(exceptforgeothermalenergyresources),althoughthetotalamountofsolarenergyresourcesisthehumanequivalentoftheenergyusedbytenthousandtimes,butlowenergydensityofsolarenergy,anditvaryfromplacetoplace,fromtimetotimechange,thedevelopmentandutilizationofsolarenergywhichisfacingamajorproblem.Thesefeatureswillmakesolarenergyintheintegratedenergysystemoftheroleofsubjecttocertainrestrictions.Theuseofsolarcells,throughthephotoelectricconversiontosolarenergyconversionisincludedinelectricity,theuseofsolarwaterheaters,theuseofsolarheathotwaterandusewaterforpowergeneration,usingsolarenergyfordesalination.Now,theuseofsolarenergyisnotverypopular,theuseofsolarpowercostsarehighthere,theproblemoflowconversionefficiency,butforsatellitesolarcellstoprovideenergyhasbeenapplied.AlthoughtheEarthsatmospheresolarradiationtothetotalenergyonly22billionthsofaradiationenergy,ithasbeenashighas173,000TW,thatistosayasecondexposuretothesunsenergyonEarthisequivalenttofivemilliontonsofcoal.Earthwindenergy,hydropower,oceanthermalenergy,waveenergyandtidalenergyaswellassomecomesfromthesun;eveninthefaceoftheearthsfossilfuels(suchascoal,oil,naturalgas,etc.)thatisfundamentallySinceancienttimesthestorageofsolarenergydown,sobyincludingabroadrangeofsolarenergyisverylarge,henarrowsenseislimitedtosolarradiationofsolarlightthermal,photovoltaicandphotochemicalconversionofthedirectly.Solarenergyisthefirsttime,butalsorenewableenergy.Itisrichinresources,canusefreeofcharge,andwithouttransportation,withoutanypollutiontotheenvironment.Formankindtocreateanewlife,sothatsocialandhumanenergyintoaeraofreducingpollution.Solarcellshavetorespondtoalightandconvertsolarenergytopowerthedevice.Photovoltaiceffectcanproducemanykindsofmaterials,suchas:singlecrystalsilicon,polycrystallinesilicon,amorphoussilicon,galliumarsenide,copperindiumselenium.Theyarebasicallythesameprincipleofpowergenerationisnowcrystalasanexampletodescribetheprocessoflightgeneration.P-typecrystallinesiliconavailableafterphosphorus-dopedN-typesilicon,theformationofP-Njunction.Whenthesurfaceofsolarlight,thesiliconmaterialtobepartofphotonabsorption;photonenergytransfertothesiliconatom,electronictransitionshavetakenplace,asafree-electronconcentrationinthePNjunctionformedonbothsidesofthepotentialdifference,whentheexternalcircuitconnectedwhentheeffectsofthevoltage,therewillbeacurrentflowingthroughtheexternalcircuithaveacertainamountofoutputpower.Thesubstanceofthisprocessare:photonenergyintoelectricalenergyconversionprocess.Siisourplanetsabundanceofstoragematerials.Sincethe19thcentury,scientistsdiscoveredthepropertiesofcrystallinesiliconsemiconductor,italmostchangedeverything,evenhumanthought,endofthe20thcentury.Ourlivescanbeseeneverywhere,siliconfigureandroleofcrystallinesiliconsolarcellsistheformationofthepast15yearsthefastestgrowingindustry.Productionprocesscanbedividedintofivesteps:a,purificationprocessb,theprocessofpullingrodc,slicingtheprocessofd,theprocessofsystembatterye,thecoursepackage.SolarphotovoltaicIsacomponentofphotovoltaicpanelsinthesunexposurewillgeneratedirectcurrentpowergenerationdevices,fromvirtuallyallsemiconductormaterials(egsilicon)aremadeofthinphotovoltaiccellscomposedofsolid.Becausethereisnopartofactivity,andwouldthusbealongtimeoperationwouldnotleadtoanyloss.Simplephotovoltaiccellsforwatchesandcomputerstoprovideenergy,andmorecomplexPVsystemstoprovidelightingforthehousingandpowersupply.Photovoltaicpanelscanbemadeintocomponentsofdifferentshapes,andcomponentscanbeconnectedtogeneratemorepower.Inrecentyears,thesurfaceoftheroofandbuildingwillbetheuseofphotovoltaicpanelscomponents,Evenbeusedaswindows,skylightsorshelteredpartofdevices,whichareoftencalledphotovoltaicfacilitieswithPVsystemsinbuildings.SolarthermalModerntechnologysolarthermalpolymerizationsunlightanduseitsenergyproducedhotwater,steamandelectricity.Inadditiontotheuseofappropriatetechnologytocollectsolarenergy,thebuildingcanalsomakeuseofthesunslightandheatenergyisaddedinthedesignofappropriateequipment,suchaslargewindowsoruseofthesouthcanabsorbandslowlyreleasethesunheatthebuildingmaterials.Accordingtorecords,humanuseofsolarenergyhasmorethan3,000yearsofhistory.Tosolarenergyasanenergyandpoweruse,only300yearsofhistory.Therealsolarasthenearfuturetoaddmuch-neededenergy,thebasisofthefutureenergymixisthelatestthing.Sincethe20thcentury,70s,solartechnologyhasmaderapidadvances,solarenergyusewitheachpassingday.SolarenergyutilizationinmodernhistoryfromtheFrenchengineersin1615intheSolomonandGermanyCoxinventedtheworldsfirstsolar-poweredenginesrun.Theinventionisauseofsolarenergyheatingtheairtotheexpansionandpumpingmachinesacting.In1615~1900,betweenthedevelopedworldandmorethanonesolarpowerplantandanumberofothersolarenergydevices.Almostallofthesepowerplantscollectthesunmeanstheuseofcondenser,enginepowerisnot,theworkingfluidiswatervapor,whichisveryexpensive,notpracticalvalue,themajorityofindividualstudiesformanufacturingsolarenthusiasts.100yearsofthe20thcentury,thehistoryofthedevelopmentofsolarenergytechnologyingeneralcanbedividedintosevenstages.1.TheFirstStage(19001920)Inthisstage,theresearchfocusofsolarenergyintheworldwerestillon

the

solar-powered

devicewhichvariablephotospotmethodwereappliedandflatplateheatcollectorandlowboilingpointactuatingmediumwerestartedtouse;thecapacityofthedevicewasgraduallyexpandedwiththemax.outputpowerof73.46kW;devicewasutilizedwiththedefiniteend-useandinhighercost.Thetypicalbuiltdeviceincluded:onesetof

solarenergy

pumpingdeviceconstructedinCaliforniaofU.Sin1901whichemployedtruncationtaperphotospotwiththepowerof7.36kW;5setsoftwin-circulatedsolar-poweredenginebuiltinU.Sin1902to1908whichemployedtheflatplateheatcollectorandlowboilingpointactuatingmedium;1setofsolarenergypumpcomprisedof5parabolicmirrorinalengthof62.5m,widthof4mbuiltinCairoofEgyptinwhichthetotallightcollectingareacouldreach1250m2.2.TheSecondStage(1920-1965)Forthese20years,theresearchof

solarenergy

wasimplementingonthepoorstage,whichthemandatetoparticipateinthedevelopmentandtheresearchprojectshadbeenwidelydeclinedduetothemassutilizationoffossilfuelsandthesecondworldwar(19351945)whilethesolarenergycouldn’tsatisfytheurgentdemandupontheenergy.Therefore,theresearchanddevelopmentofsolarenergy

wasduetobegraduallydeserted.3.TheThirdStage(1945-1965)Forthese20yearsaftertheSecondWorldWar,someforesightpersonhasnoticedthatthepetroleumandnaturalgasresourceshadbeenrapidlydecreasedandcalledforattentionontheseissuesinordertograduallypromotetherecoveryanddevelopmentofthesolarenergyresearch.Solarenergyinstitutesweresetupandacademicexchangesandexhibitionswereheldwhichraisedtheresearchupsurgeagainonsolarenergy.Inthisperiod,greatprogresswasachievedintheresearchofsolarenergy,inparticular:thefoundationtheoryofselectivepaintsproposedintheFirstInternationalSolarThermalAcademicConferencein1955,whichblacknickelhadbeendevelopedasthepracticalselectivepaints,contributingtodevelopmentofhigh-effectiveheatcollector;thepracticalsiliconsolarcellsdevelopedbyBellLabinU.Sin1954whichlaidthefoundationforlargescaleutilizationofphotovoltaicgeneration.Furthermore,therewerestillothersignificantresults,including:a.

Onesetof50kW

solar

stovewasbuiltbyFrenchNationalResearchCenterin1952;b.Theworldwideprototypeammonia-waterabsorbingairconditioningsystemheatedbyflatplateheatcollectorwiththecapacityof5tonswasbuiltinFloridaofU.Sin1960;c.Anengineequippedwithsiliconwindowwasinventedin1961.Inthisstage,researchonfoundationtheoryandfoundationmaterialofsolarenergywasreinforcedandacademicbreakthrough,i.e.selectivepaintsandsiliconsolarcellswereachieved.Theflatplatehadbeenwelldevelopedandripeintechnologies.Progresshadbeenachievedintheresearchof

solarenergy

absorbingairconditionersandabatchofpilotsolarroomwasestablished.Preliminaryresearchwasconductedontheengineandtowertypesolar-poweredgenerationtechnologies.4.TheFourthStage(19651973)Inthestage,theresearchworkonsolarenergywasstandstillduetothereasonthattheutilizationtechnologiesofsolarenergyhadenteredintothegrowingstagewhichwasnoripeinprocess,heavyininvestmentandlowerineffect.Thusitcannotcompetewithconventionalenergy,whichresultedintheabsenceofattentionandsupportfromthepublic,enterpriseandgovernment.5.TheFifthStage(19731980)Afterpetroleumplayedaleadingroleintheworldwideenergystructure,ithasbeenakeyfactortocontroltheeconomicanddeterminethefatal,developmentanddecliningofacountry.AftertheexplosionofMiddleEastWaratOc.,1973,OPECemployedthemethodofdecliningtheproductionandincreasingthepricetosupportthestruggleandsafeguardthenationalbenefitswhichresultedinheavyeconomicattackforthosecountriesthatreliedonimportinglargeamountofinexpensivepetroleumfromtheregionofMiddleEast.Thus,somepeopleinthewesterncountrieswerefrightenedtocallthattheenergyorpetroleumcrisishadbeenlaunchedintheworld.Thiscrisismadepeoplerealizedthattheexistingenergystructureshouldbecompletelychangedandtransitiontothefutureenergystructureshouldbespeedup.Fromthaton,manycountries,especiallytheindustrializedcountriesturnedtheirattentiontowardsthesupportontheresearchanddevelopmentofsolarenergyandotherrenewableenergytechnologies.Theupsurgeofdevelopingandutilizingsolarenergyhadbeenraisedagainintheworld.In1973,U.Sdrewupagovernmentscalesunlightpowergenerationprogramwhichtheresearchbudgetforsolarenergywereincreasedinalargeamount,andsolarenergydevelopmentbankwastoestablishedtofacilitatethesolarenergyproductstobecommercialized.In1974,Japanpublishedthesunlightprogrammadebythegovernment,amongwhichthesolarenergydevelopmentprojectsincludedsolar

room,industrial-usesolarenergysystem,solarthermalgeneration,solarcellsproductionsystem,scatteredandlargescalephotovoltaicgenerationsystem.Inordertoimplementthisprogram,thegovernmentofJapaninputlargeamountofmanpower,materialresourcesandfinancialresources.Theupsurgeontheutilizationofsolarenergyraisedin1970sintheworldalsoimpactedonChina.Someforesighttechniciansstartedtodevotetothesolarenergyindustryoneafteranotherandpositivelyproposedtotherelativedepartmentofthegovernmentandpublishedbooksandperiodicalstointroducetheinternationaltrendsontheutilizationofsolarenergy.

Solar

stovewaspopularizedandutilizedincountryside;solarwaterheaterwaslaunchedinthecity;solarcellsusedinspacehavestartedtobeappliedintheground.In1975,thefirstnationalsolarenergyutilizationworkingexchangesconferenceheldinAnyang,HenanProvincefurtherpromotedthedevelopmentofsolarenergyindustryinChina.Afterthismeeting,thesolarenergyresearchandpromotionhadbeenbroughtintothegovernmentprogramandawardedsupportofspecializedfundandmaterial.Insomeuniversitiesandinstitutes,solarenergytaskteamandresearchdepartmentswereestablishedoneafteranother.Solarenergyresearchinstituteswerealsolaunchedinsomeplaces.Atthattime,anupsurgeonutilizationof

solarenergy

wasemerginginChina.Duringthisperiod,researchanddevelopmentofsolarenergyenteredintoanunprecedentedwell-developedstagewiththefollowingcharacteristics:a.Eachcountryenhancedplanningon

solarenergy

research.Manycountriesworkedoutshorttermandlong-termsunlightprogram.Theutilizationofsolarenergyhadbeenagovernmentalactionwithintensivesupport.Theinternationalcooperationwasveryactivewhichsomedevelopingcountrieshadstartedtoparticipateintheutilizationofsolarenergy.b.Theresearchfieldwasexpanding;researchworkwasdevelopeddaybydayandsignificantresultsachieved,forexample,CPC,vacuumheatcollectingpipe,non-crystalsiliconsolarcells,water-photolyzedhydrogenproductionandsolarenergythermalpowergeneration.c.Thesolarenergydevelopmentprogramworkedoutbyeachcountryexistedtheproblemsthattherequirementwastoohighandurgentandinsufficientexpectationondifficultyinimplementation.Theyhavethoughttoreplacethemineralenergyintheshorttimeandtoutilizethesolarenergyinlargescale.Forexample,U.Shasoncescheduledtobuildasmallsizesolarenergydemonstrationsatellitepowerstationin1985andonesetof5millionkWspacesolarenergypowerstationin1995.Infact,thisprogramhasbeenadjustedinlater,andthespacesolarenergypowerstationhasnotyetbeenrealized.d.Productssuchas

solarwaterheater

and

solarcells

werestartedtocommercialize.Thesolarenergysectorhasbeenpreliminarilyestablishedwithasmallscaleandineffectiveeconomiceffects.6.TheSixthStage(1980-1992)Theupsurgeonutilizationofsolarenergyemergedin1970swasfallenintoastageofbeingdevelopedinalowandslowstepin1980s.Manycountriesintheworlddeclinedtheresearchbudgetforsolarenergyinsuccessiveinalargeamount,inparticulartheU.S.Themainreasonsresultedinthissituationwerethattheinternationaloilpricewascorrectedinalargerangewhilesolarenergyproductcostwasstillremainingasbeforewhichmaybeofnocompetitivecapability;noanysignificantbreakthroughonsolarenergytechnologiestoincreasetheefficiencyandreducethecostwhichledtobreakdownpeople’sconfidencetodevelopsolarenergy;increaseddevelopmentonnuclearpowerwhichmayrestrainonacertaindegreeonthedevelopmentofsolarenergy.Influencedontheturndownofsolarenergyintheworldwidein1980s,researchworkinChinaalsodeclinedinacertaindegree.Duetothereasonthattheutilizationofsolarenergywasheavyininvestment,ineffectiveinresults,difficultinenergystorageandlargeinlandcovering,solarenergyshouldbeconsideredasthefutureenergy.Somepersonevenproposedthatthetechnologycouldbeintroducedafteritwouldbedevelopedsuccessfully.Onlyfewpeoplesupportedsuchviewpoint,butitwasveryharmfulwhichwillresultinunfavorableinfluenceonthedevelopmentofsolarenergyindustry.Duringthisperiod,althoughtheresearchbudgethasbeenmitigatedinalargeamount,theresearchworkremaineduninterruptedly,amongwhichsomeprojectsachievedprogresswhichfacilitatedpeopletoinvestigateseriouslyontheprogramandgoadsworkedoutbeforeandtoadjusttheresearchfocussothattostriveforgreatachievementbylessinput.7.TheSeventhStage(1992UntilNow)Excessiveburningoffossilfuelledtoworldwideenvironmentalpollutionandecologicaldestruction,whichhasbeenthreatenedthesubstanceanddevelopmentofhumanbeings.Undersuchcircumstance,UNheldtheinternationalenvironmentanddevelopmentconferenceinBrazilin1992.Onthismeeting,aseriesofimportantdocumentwerepublishedincluding

theEnvironmentandDevelopmentManifesto,

Agendaof21st

century

and

UNFrameworkPactonClimateChanging

inwhichtheenvironmentanddevelopmentwerebroughtintotheintegratedframework,andsustainablemodelwasestablished.Afterthisconference,eachcountryenhancedthedevelopmentofcleanenergytechnologies,anddevelopedthesolarenergyinlinewiththeenvironmentalprotectionsoastomaketheutilizationofsolarenergybewelldeveloped.Afterthisconference,Chinesegovernmentalsoturnedtheirattentiontowardstheenvironmentanddevelopmentandpointedout10piecesoftacticandmeasuredefinitelytodevelopandpopularizethecleanenergyincludingsolarenergy,windenergy,thermalenergy,tidalenergyandbiomassenergyinaccordancewiththereality;workedout

Agendaof21st

centuryinChina

andfurtherfocusedthesolarenergyprojects.In1995,theStatePlanning,theStateEconomicandTradeCommission,theStateMinistryofScienceandTechnologyworkedout

theOutlineforDevelopmentofNewandRenewableEnergyfrom1996to2010,

whichdefinitelypointedoutthegoads,objectivesandrelativetacticandmeasuretowardsthedevelopmentofnewandrenewableenergyfrom1996to2010inChina.ThepublishingandimplementationofthedocumentfurtherpromotedthedevelopmentofsolarenergyindustryinChina.

In1996,UNheldtheworldwidesolarenergysummitconferenceinZimbabwe.

TheSolarEnergyandSustainableDevelopmentManifesto

waspublishedafterthemeeting.Importantdocument,i.e.WorldwideSolarEnergy10-YearActionandProgram(19962005),

InternationalSolarEnergyPact,

WorldwideSolarEnergyStrategicPlanning

werediscussedduringthemeeting.Thismeetingfurthershowedeachcountry’scommitmenttodevelopingthesolarenergy.Worldwidejointactionwasrequiredtoextensivelyutilizethesolarenergy.After1992,theworldwideutilizationofsolarenergyhasenteredintoadevelopingstagewiththecharacteristicthat:a.Theutilizationofsolarenergycanbeconsistenttothesustainabledevelopmentandenvironmentprotection,andcanbecarriedoutjointlytorealizethedevelopmentstrategyintheworld;b.Definitedevelopmentgoalswithfocusprojectsandeffectivemeasure,whichwillbefavorabletoovercometheshortagetoensurethelong-termdevelopmentofsolarenergyindustry;c.Inthecourseofexpandingtheresearchofsolarenergy,attentionwaspaidtoconverttheacademicresultsintoproduction,developsolarenergyindustry,speeduptheprogresstobecommercialized,expandtheutilizationfieldandscaleandincreasetheeconomicbenefits;d.Activeinternationalcooperationinthefieldofsolarenergywithexpandingscaleandobviouseffect.Inviewofthereview,thedevelopmentofsolarenergyinthe20th

centurywasnotsosmooth.Generallyspeaking,lowtideperiodwashappenedaftereveryhightideperiod.Thelowtideperiodlastedfornearly45years.Thedevelopmentofsolarenergydifferedwiththatofcoal,petroleumandnuclearenergyinunderstandinganddevelopmentperiod,whichcouldbedemonstratedthatitwasverydifficultytodevelopthesolarenergyanditcannotberealizedtolargescaleutilizeintheshortterm.Ontheotherhand,itwasshowedthattheutilizationofsolarenergywasalsoaffectedbythesupplyofmineralenergy,politicsandwar.However,inaword,thesolarenergyhasachievedgreatlyinacademicresultsin20th

centurythaninanyothercentury.

英文翻譯太陽能利用史太陽能一般指太陽光的輻射能量。在太陽內(nèi)部進(jìn)行的由氫聚變成氦的原子核反應(yīng)，不停地釋放出巨大的能量，并不斷向宇宙空間輻射能量，這種能量就是太陽能。太陽內(nèi)部的這種核聚變反應(yīng)，可以維持幾十億至上百億年的時間。太陽向宇宙空間發(fā)射的輻射功率為3.8x10^23kW的輻射值，其中20億分之一到達(dá)地球大氣層。到達(dá)地球大氣層的太陽能，30%被大氣層反射，23%被大氣層吸收，其余的到達(dá)地球表面，其功率為800000億kW，也就是說太陽每秒鐘照射到地球上的能量就相當(dāng)于燃燒500萬噸煤釋放的熱量。平均在大氣外每平米面積每分鐘接受的能量大約1367w。廣義上的太陽能是地球上許多能量的來源，如風(fēng)能，化學(xué)能，水的勢能等等。狹義的太陽能則限于太陽輻射能的光熱、光電和光化學(xué)的直接轉(zhuǎn)換。人類對太陽能的利用有著悠久的歷史。我國早在兩千多年前的戰(zhàn)國時期，就知道利用鋼制四面鏡聚焦太陽光來點火；利用太陽能來干燥農(nóng)副產(chǎn)品。發(fā)展到現(xiàn)代，太陽能的利用已日益廣泛，它包括太陽能的光熱利用，太陽能的光電利用和太陽能的光化學(xué)利用等。太陽能的利用有光化學(xué)反應(yīng),被動式利用（光熱轉(zhuǎn)換）和光電轉(zhuǎn)換兩種方式。太陽能發(fā)電一種新興的可再生能源利用方式。使用太陽電池，通過光電轉(zhuǎn)換把太陽光中包含的能量轉(zhuǎn)化為電能，使用太陽能熱水器，利用太陽光的熱量加熱水，并利用熱水發(fā)電，利用太陽能進(jìn)行海水淡化?，F(xiàn)在，太陽能的利用還不很普及，利用太陽能發(fā)電還存在成本高、轉(zhuǎn)換效率低的問題，但是太陽電池在為人造衛(wèi)星提供能源方面得到了應(yīng)用。主要是硅光電池在吸收太陽所發(fā)射出來的光能，硅光電池主要是從沙子里提煉出來的，由貝爾實驗室開發(fā)。太陽能是太陽內(nèi)部或者表面的黑子連續(xù)不斷的核聚變反應(yīng)過程產(chǎn)生的能量。地球軌道上的平均太陽輻射強度為1367w/㎡。地球赤道的周長為40000km，從而可計算出，地球獲得的能量可達(dá)173000TW。在海平面上的標(biāo)準(zhǔn)峰值強度為1kw/m2，地球表面某一點24h的年平均輻射強度為0.20kw/㎡，相當(dāng)于有102000TW的能量，人類依賴這些能量維持生存，其中包括所有其他形式的可再生能源（地?zé)崮苜Y源除外），雖然太陽能資源總量相當(dāng)于現(xiàn)在人類所利用的能源的一萬多倍，但太陽能的能量密度低，而且它因地而異，因時而變，這是開發(fā)利用太陽能面臨的主要問題。太陽能的這些特點會使它在整個綜合能源體系中的作用受到一定的限制。盡管太陽輻射到地球大氣層的能量僅為其總輻射能量的22億分之一，但已高達(dá)173,000TW，也就是說太陽每秒鐘照射到地球上的能量就相當(dāng)于500萬噸煤。地球上的風(fēng)能、水能、海洋溫差能、波浪能和生物質(zhì)能以及部分潮汐能都是來源于太陽；即使是地球上的化石燃料（如煤、石油、天然氣等）從根本上說也是遠(yuǎn)古以來貯存下來的太陽能，所以廣義的太陽能所包括的范圍非常大，狹義的太陽能則限于太陽輻射能的光熱、光電和光化學(xué)的直接轉(zhuǎn)換。太陽能既是一次能源，又是可再生能源。它資源豐富，既可免費使用，又無需運輸，對環(huán)境無任何污染。為人類創(chuàng)造了一種新的生活形態(tài)，使社會及人類進(jìn)入一個節(jié)約能源減少污染的時代。太陽電池是一對光有響應(yīng)并能將光能轉(zhuǎn)換成電力的器件。能產(chǎn)生光伏效應(yīng)的材料有許多種，如：單晶硅，多晶硅，非晶硅，砷化鎵，硒銦銅等。它們的發(fā)電原理基本相同，現(xiàn)以晶體為例描述光發(fā)電過程。P型晶體硅經(jīng)過摻雜磷可得N型硅，形成P－N結(jié)。當(dāng)光線照射太陽電池表面時，一部分光子被硅材料吸收；光子的能量傳遞給了硅原子，使電子發(fā)生了躍遷，成為自由電子在P-N結(jié)兩側(cè)集聚形成了電位差，當(dāng)外部接通電路時，在該電壓的作用下，將會有電流流過外部電路產(chǎn)生一定的輸出功率。這個過程的的實質(zhì)是：光子能量轉(zhuǎn)換成電能的過程。硅是我們這個星球上儲藏最豐量的材料之一。自從19世紀(jì)科學(xué)家們發(fā)現(xiàn)了晶體硅的半導(dǎo)體特性后，它幾乎改變了一切，甚至人類的思維，20世紀(jì)末．我們的生活中處處可見硅的身影和作用，晶體硅太陽電池是近15年來形成產(chǎn)業(yè)化最快。生產(chǎn)過程大致可分為五個步驟：a、提純過程b、拉棒過程c、切片過程d、制電池過程e、封裝過程。太陽能光伏光伏板組件是一種暴露在陽光下便會產(chǎn)生直流電的發(fā)電裝置，由幾乎全部以半導(dǎo)體物料(例如硅)制成的薄身固體光伏電池組成。由于沒有活動的部分，故可以長時間操作而不會導(dǎo)致任何損耗。簡單的光伏電池可為手表及計算機提供能源，較復(fù)雜的光伏系統(tǒng)可為房屋提供照明，并為電網(wǎng)供電。光伏板組件可以制成不同形狀，而組件又可連接，以產(chǎn)生更多電力。近年，天臺及建筑物表面均會使用光伏板組件，甚至被用作窗戶、天窗或遮蔽裝置的一部分，這些光伏設(shè)施通常被稱為附設(shè)于建筑物的光伏系統(tǒng)?，F(xiàn)代的太陽熱能科技將陽光聚合，并運用其能量產(chǎn)生熱水、蒸氣和電力。除了運用適當(dāng)?shù)目萍紒硎占柲芡?，建筑物亦可利用太陽的光和熱能，方法是在設(shè)計時加入合適的裝備，例如巨型的向南窗戶或使用能吸收及慢慢釋放太陽熱力的建筑材料。據(jù)記載，人類利用太陽能已有3000多年的歷史。將太陽能作為一種能源和動力加以利用，只有300多年的歷史。真正將太陽能作為近期急需的補充能源，未來能源結(jié)構(gòu)的基礎(chǔ)，則是近來的事。20世紀(jì)70年代以來，太陽能科技突飛猛進(jìn)，太陽能利用日新月異。近代太陽能利用歷史可以從1615年法國工程師所羅門德考克斯在世界上發(fā)明第一臺太陽能驅(qū)動的發(fā)動機算起。該發(fā)明是一臺利用太陽能加熱空氣使其膨脹做功而抽水的機器。在1615年～1900年之間，世界上又研制成多臺太陽能動力裝置和一些其它太陽能裝置。這些動力裝置幾乎全部采用聚光方式采集陽光，發(fā)動機功率不大，工質(zhì)主要是水蒸汽，價格昂貴，實用價值不大，大部分為太陽能愛好者個人研究制造。20世紀(jì)的100年間，太陽能科技發(fā)展歷史大體可分為七個階段。第一階段(1900~1920年)在這一階段，世界上太陽能研究的重點仍是太陽能動力裝置，但采用的聚光方式多樣化，且開始采用平板集熱器和低沸點工質(zhì)，裝置逐漸擴大，最大輸出功率達(dá)73.64kW，實用目的比較明確，造價仍然很高。建造的典型裝置有：1901年，在美國加州建成一臺太陽能抽水裝置，采用截頭圓錐聚光器，功率：7.36kW；1902~1908年，在美國建造了五套雙循環(huán)太陽能發(fā)動機，采用平板集熱器和低沸點工質(zhì)；1913年，在埃及開羅以南建成一臺由5個拋物槽鏡組成的太陽能水泵，每個長62.5m，寬4m，總采光面積達(dá)1250m2。第二階段（1920~1945年）在這20多年中，太陽能研究工作處于低潮，參加研究工作的人數(shù)和研究項目大為減少，其原因與礦物燃料的大量開發(fā)利用和發(fā)生第二次世界大戰(zhàn)（1935~1945年）有關(guān)，而太陽能又不能解決當(dāng)時對能源的急需，因此使太陽能研究工作逐漸受到冷落。第三階段（1945~1965年）在第二次世界大戰(zhàn)結(jié)束后的20年中，一些有遠(yuǎn)見的人士已經(jīng)注意到石油和天然氣資源正在迅速減少，呼吁人們重視這一問題，從而逐漸推動了太陽能研究工作的恢復(fù)和開展，并且成立太陽能學(xué)術(shù)組織，舉辦學(xué)術(shù)交流和展覽會，再次興起太陽能研究熱潮。在這一階段，太陽能研究工作取得一些重大進(jìn)展，比較突出的有：1945年，美國貝爾實驗室研制成實用型硅太陽電池，為光伏發(fā)電大規(guī)模應(yīng)用奠定了基礎(chǔ)；1955年，以色列泰伯等在第一次國際太陽熱科學(xué)會議上提出選擇性涂層的基礎(chǔ)理論，并研制成實用的黑鎳等選擇性涂層，為高效集熱器的發(fā)展創(chuàng)造了條件。此外，在這一階段里還有其它一些重要成果，比較突出的有：1952年，法國國家研究