Thaum lub Tsib Hlis 2022, CCTV tau tshaj tawm tias cov ntaub ntawv tshiab los ntawm National Energy Administration qhia tau hais tias tam sim no, cov phiaj xwm hluav taws xob photovoltaic nyob rau hauv kev tsim kho yog 121 lab kilowatts, thiab nws xav tias txhua xyoo photovoltaic fais fab tuag yuav txuas tshiab rau hauv daim phiaj. los ntawm 108 lab kilowatts, nce ntawm 95.9% tshaj xyoo dhau los.
Kev nce ntxiv ntawm lub ntiaj teb PV ntsia lub peev xwm tau nrawm rau daim ntawv thov ntawm laser ua tshuab hauv kev lag luam photovoltaic.Kev txhim kho txuas ntxiv ntawm laser ua tshuab kuj tau txhim kho kev siv hluav taws xob ntawm photovoltaic zog.Raws li cov ntaub ntawv txheeb cais, lub ntiaj teb PV tshiab tsim peev txheej lag luam tau mus txog 130GW xyoo 2020, rhuav tshem cov keeb kwm tshiab.Thaum lub ntiaj teb PV ntsia lub peev xwm tau mus txog qhov siab tshiab, raws li lub teb chaws loj tag nrho cov khoom tsim, Tuam Tshoj tus PV ntsia muaj peev xwm yeej ib txwm tswj hwm qhov kev nce siab.Txij li xyoo 2010, cov khoom tsim tawm ntawm photovoltaic hlwb hauv Suav teb tau tshaj 50% ntawm lub ntiaj teb tag nrho cov zis, uas yog qhov tseeb.Ntau tshaj li ib nrab ntawm lub ntiaj teb kev lag luam photovoltaic yog tsim thiab xa tawm.
Raws li cov cuab yeej ua lag luam, laser yog cov thev naus laus zis tseem ceeb hauv kev lag luam photovoltaic.Laser tuaj yeem mloog ntau lub zog rau hauv thaj tsam me me ntawm ntu ntu thiab tso tawm, txhim kho kev siv hluav taws xob zoo, kom nws tuaj yeem txiav cov ntaub ntawv nyuaj.Kev tsim cov roj teeb tseem ceeb dua hauv kev tsim hluav taws xob photovoltaic.Silicon hlwb ua lub luag haujlwm tseem ceeb hauv kev tsim hluav taws xob photovoltaic, txawm tias crystalline silicon cells lossis nyias zaj duab xis silicon cells.Nyob rau hauv crystalline silicon hlwb, high-purity ib leeg siv lead ua / polycrystal yog txiav rau hauv silicon wafers rau roj teeb, thiab laser yog siv los txiav zoo dua, zoo, thiab sau ntawv, thiab ces hlua lub hlwb.
01 Roj teeb ntug kev kho mob passivation
Qhov tseem ceeb tshaj plaws los txhim kho kev ua haujlwm ntawm lub hnub ci hlwb yog kom txo qis lub zog poob los ntawm hluav taws xob rwb thaiv tsev, feem ntau yog etching thiab passivating cov npoo ntawm silicon chips.Cov txheej txheem ib txwm siv cov ntshav plasma los kho cov npoo npoo, tab sis cov tshuaj etching siv yog kim thiab tsim kev puas tsuaj rau ib puag ncig.Laser nrog lub zog siab thiab lub zog siab tuaj yeem ua kom nrawm nrawm ntawm ntug ntawm tes thiab tiv thaiv kom tsis txhob muaj zog ntau dhau.Nrog lub laser tsim groove, lub zog poob los ntawm cov leakage tam sim no ntawm lub hnub ci cell yog heev txo, los ntawm 10-15% ntawm qhov poob los ntawm cov tsoos tshuaj etching txheej txheem mus rau 2-3% poob los ntawm lub laser technology. .
02 Npaj thiab sau ntawv
Kev teeb tsa silicon wafers los ntawm laser yog ib qho txheej txheem hauv online rau kev sib txuas ntawm cov hnub ci tsis siv neeg.Kev sib txuas ntawm lub hnub ci hauv txoj kev no txo cov nqi khaws cia thiab ua rau cov hlua roj teeb ntawm txhua lub module kom muaj kev sib haum xeeb thiab compact.
03 Txiav thiab scribing
Tam sim no, nws yog qhov zoo tshaj plaws los siv laser los kos thiab txiav silicon wafers.Nws muaj qhov raug siv siab, siab dua qhov tseeb, kev ua haujlwm ruaj khov, ceev ceev, kev ua haujlwm yooj yim thiab kev saib xyuas yooj yim.
04 Silicon wafer cimhauv
Qhov zoo tshaj plaws daim ntawv thov ntawm laser nyob rau hauv silicon photovoltaic kev lag luam yog cim silicon tsis cuam tshuam nws conductivity.Wafer labeling pab cov tuam txhab ua raws lawv cov khoom siv hnub ci thiab ua kom ruaj khov zoo.
05 Film ablation
Nyias zaj duab xis hnub ci hlwb cia siab rau vapor deposition thiab scribing thev naus laus zis los xaiv ablate tej txheej txheej kom ua tiav hluav taws xob cais.Txhua txheej ntawm zaj duab xis yuav tsum tau muab tso rau sai sai yam tsis muaj kev cuam tshuam rau lwm cov khaubncaws sab nraud povtseg ntawm lub substrate iav thiab silicon.Instantaneous ablation yuav ua rau kev puas tsuaj ntawm cov iav thiab silicon txheej, uas yuav ua rau lub roj teeb tsis ua haujlwm.
Txhawm rau kom muaj kev ruaj ntseg, zoo thiab sib xws ntawm lub zog tsim kev ua tau zoo ntawm cov khoom siv, lub zog laser beam yuav tsum tau ua tib zoo kho rau kev tsim khoom.Yog tias lub zog laser tsis tuaj yeem ncav cuag ib theem, cov txheej txheem scribing tsis tuaj yeem ua tiav.Ib yam li ntawd, lub nqaj yuav tsum ua kom lub zog nyob rau hauv qhov nqaim thiab ua kom lub sijhawm ua haujlwm 7 * 24 teev hauv cov kab sib dhos.Tag nrho cov xwm txheej no tau muab cov kev cai nruj heev rau cov txheej txheem laser, thiab cov cuab yeej saib xyuas nyuaj yuav tsum tau siv los xyuas kom meej qhov ua haujlwm siab.
Cov neeg tsim khoom siv lub zog ntsuas hluav taws xob los kho lub laser thiab kho nws kom ua tau raws li daim ntawv thov.Rau high-power lasers, muaj ntau yam sib txawv zog ntsuas cov cuab yeej, thiab high-power detectors yuav ua txhaum cov kev txwv ntawm lasers nyob rau hauv tshwj xeeb tej yam kev mob;Lasers siv nyob rau hauv iav txiav los yog lwm yam deposition daim ntaub ntawv yuav tsum tau xyuam xim rau cov zoo yam ntxwv ntawm lub nqaj, tsis muaj zog.
Thaum nyias zaj duab xis photovoltaic siv los ablate cov khoom siv hluav taws xob, cov yam ntxwv ntawm cov nqaj yog qhov tseem ceeb tshaj qhov qub zog.Qhov loj me, cov duab thiab lub zog ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov dej ntws tam sim no ntawm cov roj teeb module.Lub teeb laser uas ablates cov khoom siv photovoltaic tso rau hauv cov iav phaj tseem xav tau kev kho kom zoo.Raws li qhov chaw sib cuag zoo rau kev tsim cov roj teeb hluav taws xob, cov nqaj yuav tsum ua tau raws li txhua tus qauv.Tsuas yog cov kab teeb pom kev zoo uas muaj qhov rov ua tau zoo tuaj yeem ua rau lub voj voog kom raug yam tsis muaj kev puas tsuaj rau cov iav hauv qab no.Nyob rau hauv cov ntaub ntawv no, ib tug thermoelectric detector muaj peev xwm ntsuas laser beam zog dua feem ntau yuav tsum tau.
Qhov loj ntawm lub laser beam center yuav cuam tshuam nws ablation hom thiab qhov chaw.Lub roundness (los yog ovality) ntawm lub beam yuav cuam tshuam rau cov script line projected ntawm lub hnub ci module.Yog tias daim ntawv sau tsis sib npaug, qhov tsis sib haum xeeb ntawm lub teeb ellipticity yuav ua rau muaj teeb meem hauv lub hnub ci module.Cov duab ntawm tag nrho cov nqaj kuj cuam tshuam rau kev ua haujlwm ntawm silicon doped qauv.Rau cov kws tshawb fawb, nws yog ib qho tseem ceeb uas yuav tau xaiv lub laser uas zoo, tsis hais txog kev ua haujlwm ceev thiab nqi.Txawm li cas los xij, rau kev tsim khoom, hom xauv lasers feem ntau yog siv rau luv luv pulses xav tau rau evaporation hauv roj teeb tsim.
Cov ntaub ntawv tshiab xws li perovskite muab cov txheej txheem tsim khoom pheej yig dua thiab sib txawv kiag li los ntawm cov roj teeb crystalline silicon.Ib qho txiaj ntsig zoo ntawm perovskite yog tias nws tuaj yeem txo qhov cuam tshuam ntawm kev ua thiab kev tsim cov crystalline silicon ntawm ib puag ncig thaum tswj kev ua haujlwm.Tam sim no, vapor deposition ntawm nws cov ntaub ntawv kuj siv laser ua technology.Yog li ntawd, nyob rau hauv kev lag luam photovoltaic, laser technology yog nce siv nyob rau hauv cov txheej txheem doping.Photovoltaic lasers yog siv nyob rau hauv ntau yam txheej txheem.Nyob rau hauv zus tau tej cov crystalline silicon hnub ci hlwb, laser technology yog siv los txiav silicon chips thiab ntug rwb thaiv tsev.Lub doping ntawm lub roj teeb ntug yog tiv thaiv luv luv ntawm lub hauv ntej electrode thiab rov qab electrode.Hauv daim ntawv thov no, laser thev naus laus zis tau dhau los ua lwm yam txheej txheem ib txwm muaj.Nws ntseeg tau tias yuav muaj ntau thiab ntau daim ntawv thov ntawm laser technology nyob rau hauv tag nrho photovoltaic ntsig txog kev lag luam yav tom ntej.
Post lub sij hawm: Oct-14-2022