Hauv kev lag luam photovoltaic, perovskite tau nyob rau hauv cov kev thov kub nyob rau hauv xyoo tas los no. Qhov laj thawj yog vim li cas nws tau tshwm sim raws li qhov "nyiam" hauv thaj chaw nruab hnub ci yog vim nws qhov xwm txheej tshwj xeeb. Calcium titanium ore muaj ntau cov photovoltoltaic ntau, cov txheej txheem npaj tau yooj yim, thiab ntau cov ntaub ntawv raw thiab cov ntsiab lus ntau. Tsis tas li ntawd, Perovskite kuj tseem siv tau rau hauv av hluav taws xob nroj tsuag, kev tsim kho, kev tsim kho, lub zog hnav, ntau lwm lub teb.
Thaum Lub Peb Hlis 21, Ningde Times thov rau daim duab ntawm "calcium Titanite Solar cell thiab nws txoj kev npaj thiab fais fab hom". Nyob rau hauv xyoo tas los, nrog kev txhawb nqa ntawm cov cai hauv tsev thiab kev ntsuas, cov calcium-titanium ore hnub ci lossis ua rau muaj kev sib tw loj. Yog li dab tsi yog perovskite? Yuav ua li cas yog kev lag luam ntawm perovskite? Cov nyom uas muaj kev nyuaj siab li cas? Science thiab thev naus laus zis txhua hnub nug cov kws tshaj lij.
Cov kab mob no tsis yog calcium los yog titanium.
Qhov thiaj li hu ua pob testskites yog tsis typium, tab sis ib lub sij hawm great rau ib chav ntawm "ceramic oxides" nrog cov qauv siv lead ua abx3. Ib qho sawv ntsug rau "Lub vojvoog loj cation", B rau "Hlau Cation" thiab x rau "Halogen Anion". Ib qho sawv ntsug rau "Loj vojvoog cation", b sawv "hlau cation" thiab x sawv rau "Halogen Anion". Peb lub ions tuaj yeem nthuav tawm ntau yam khoom siv lub cev zoo nkauj heev los ntawm kev npaj qhov sib txawv ntawm lawv, suav nrog cov nyhuv hlau, cov nyhuv hlau loj, thiab lwm yam.
"Raws li lub ntsiab lus muaj pes tsawg ntawm cov khoom siv, cov kab ke tuaj yeem raug faib ua peb pawg: cov hlau ua ke, organic hybrid perovskites, thiab inorganic halogenated perovsskites." Lua Jingshan, tus xibfwb qhia ntawv ntawm Nankai University lub tsev kawm ntawv ntawm cov ntaub ntawv hauv hluav taws xob thiab cov khoom lag luam calcium, qhia txog cov photovoltaics feem ntau tau siv ob qho kawg.
Cov kab ke tuaj yeem siv rau hauv ntau cov teb xws li cov ntoo hluav taws xob terrestrial, aerospace, kev tsim kho, thiab lub zog hnav, thiab lub zog hnav, thiab hluav taws xob lub zog hluav taws xob. Ntawm lawv, photovoltaic yog lub chaw thov tseem ceeb ntawm cov pakov. Calcium Titanite cov qauv yog qhov tsim tau heev thiab muaj cov kev tshawb fawb zoo heev, uas yog qhov kev tshawb fawb nrov hauv photovoltaic nyob rau xyoo tsis ntev los no.
Kev lag luam muaj ntawm cov pob txha caj noob yog nrawm, thiab cov lag luam hauv tsev yog kev sib tw rau cov txheej txheem. Nws tau tshaj tawm tias thawj 5,000 daim calcium titanium ore modules xa los ntawm Hangzhou Fina Photoelectric Technology Co., Ltd; Renshuo photovoltaic (suzhou) Co., Ltd. Kunshan GCL Photoelectric cov ntaub ntawv Co. Ltd.
Calcium titanium ore tau pom tseeb qhov txiaj ntsig hauv kev lag luam photovoltaic
Hauv kev lag luam photovoltaic, perovskite tau nyob rau hauv cov kev thov kub nyob rau hauv xyoo tas los no. Qhov laj thawj yog vim li cas nws tau tshwm sim raws li qhov "nyiam" hauv thaj chaw nruab hnub ci yog vim nws tus kheej cov xwm txheej tshwj xeeb.
"Firovly, Perovsskite muaj ntau cov khoom siv roj zoo zoo tshaj plaws, feem ntau ua kom muaj kev hloov kho lub zog, muaj kev nqus cov khoom siv hluav taws xob siab, siab tsis kam rau, thiab lwm yam; Thib ob, txheej txheem npaj tau yooj yim yog yooj yim thiab tuaj yeem ua tiav cov translucency, ultra-thinness, iterskite raw khoom siv tau dav, muaj ntau yam thiab muaj ntau. " LUO JONSHAN qhia. Thiab kev npaj ntawm perovskite kuj yuav tsum muaj kev coj dawb huv ntawm cov khoom siv raw.
Tam sim no, PV teb siv ntau ntawm cov xov tooj cua silicon, uas tuaj yeem faib ua silicon, polycrystalline silicon, thiab amorphous silicon hnub ci hlwb. The theoretical photielecectric kev hloov pauv tus ncej ntawm Crystalline Silicon hlwb yog 29.7% uas yog qhov ze ntawm kev hloov dua siab tshiab; Nws yog qhov xav tau hais tias lub marginal tau txais kev txhim kho thev naus laus zis kuj yuav ua me thiab me dua. Hauv kev sib piv, lub photovoltaic hloov zuj zus kev ua haujlwm muaj ntau dua theoretical ncej muaj nqis
Ntxiv rau "efficiency", lwm qhov tseem ceeb yog "raug nqi". Piv txwv li, vim li cas tus nqi ntawm thawj tiam ntawm cov roj teeb ua yeeb yaj kiab uas tsis muaj peev xwm yog tias cov khoom siv tsis muaj txiaj ntsig ntawm lub ntiaj teb, yog qhov ua tau zoo heev, kev tsim kho tau ntau dua Yog, qhov ntau dua qhov kev thov, cov nqi tsim ntau dua, thiab nws yeej tsis muaj peev xwm dhau los ua cov khoom lag luam. Cov ntaub ntawv raw ntawm perovskite tau faib rau hauv ntau ntau rau hauv ntiaj teb, thiab tus nqi kuj pheej yig heev.
Tsis tas li ntawd, cov tuab ntawm cov calcium-titanium ore txheej rau calcium-titanium wafers, uas txhais tau hais tias qhov kev thov rau cov khoom siv me me. Piv txwv li, tam sim no thoob ntiaj teb xav tau rau cov khoom silicon rau crystalline hlwb yog li 500,000 tag nrho cov ntawm cov hlwb, tsuas yog hais txog 1,000 --,000 tons ntawm perovskite yuav xav tau.
Nyob rau hauv cov nqe lus ntawm cov nqi tsim khoom, crystalline cells xav tau silicon purification rau 900 yuav tsum tau ua kom sov rau hauv cov pob zeb thiab tom qab ntawd thiab tom qab ntawd muaj tsawg kawg yog plaub yam thiab ob rau peb hnub nyob rau hauv nruab nrab, thiab kev siv zog ntau dua. Nyob rau hauv sib piv, rau kev tsim cov pob txha hlwb, nws tsuas yog tsim nyog yuav tsum tau siv cov pob teskite ua kua rau substrate thiab tom qab ntawd tos kom crystallization. Tag nrho cov txheej txheem tsuas yog iav, cov yeeb yaj kiab nplaum, cov khoom siv tshuaj nplaum thiab tuaj yeem ua tiav rau hauv ib lub hoobkas, thiab tag nrho cov txheej txheem tsuas yog siv li 45 feeb.
"Hnub ci hlwb tau npaj los ntawm perovskite muaj cov photicelececececececececic excielecic zoo, uas tau mus txog hnub tom ntej los ua kev lag luam cov ntsiab." Luo Jingshan tau hais.
Muaj peb qhov teeb meem tseem ceeb uas yuav tsum tau daws los txhawb kev lag luam
Nyob rau hauv kev mus los ntawm kev lag luam ntawm Chalcocite, cov neeg tseem yuav tsum daws tau 3 cov teeb meem, uas yog lub sijhawm npaj ntev, kev npaj loj thiab kev lom zem ntawm cov hmoov txhuas.
Ua ntej, perovskite yog heev rhiab rau ib puag ncig, thiab yam xws li cua sov, av noo tuaj yeem ua rau txoj kev rhuav tshem ntawm cov kev ua kom zoo thiab kev txo qis ntawm kev ua haujlwm cell ua haujlwm. Tam sim no feem ntau chav kuaj cov khoom lag luam Ib qho ntxiv, qhov kev cuam tshuam me me ntawm cov txheej txheem thiab nws cov khoom siv yog qhov nyuaj, thiab tsis muaj kev nkag siab meej meej ntawm cov qauv, thiab tsis muaj kev sib tham kom muaj kev cuam tshuam rau kev ruaj ntseg.
Lwm qhov teeb meem tseem ceeb yog yuav npaj li cas los npaj lawv rau ntawm qhov loj loj. Tam sim no, thaum cov kev tshawb fawb ua kom zoo tau ua hauv chav kuaj, qhov teeb meem zoo tshaj li 1 cm2, thiab thaum nws los kev npaj khoom lag luam yuav tsum tau txhim kho lossis hloov. Cov hau kev tseem ceeb tam sim no siv rau kev npaj ntawm thaj chaw sib tw loj cov yeeb yaj kiab yog qhov kev daws teeb meem thiab kev nqus nqus evaporation qauv. Nyob rau hauv cov kev daws teeb meem, kev pom zoo thiab sib piv ntawm cov kev daws teeb meem ua ntej, hom tshuaj tiv thaiv, thiab lub sijhawm khaws cia muaj txiaj ntsig zoo ntawm cov yeeb yaj kiab perovskite. Lub tshuab nqus evap kev ua kom zoo evaporation zoo thiab cov yeeb yaj kiab tso tawm ntawm cov yeeb yaj kiab no, tab sis nws yog qhov nyuaj ntxiv kom ua tiav kev sib cuag zoo ntawm cov ua ntej thiab substrates. Tsis tas li ntawd, vim tias lub txim thauj cov txheej txheem ntawm cov khoom siv roj ntsha tsis tau muaj cov kab loj, cov kab ntau lawm nrog cov txheej txuas mus ntxiv ntawm txhua txheej yuav tsum tau tsim hauv kev lag luam ntau lawm. Zuag qhia tag nrho, cov txheej txheem ntawm cov kev npaj loj-thaj chaw ntawm cov yeeb yaj kiab nyias nyias zaj duab xis tseem xav tau kev txhim kho ntxiv.
Thaum kawg, qhov tshuaj lom ntawm txhuas kuj tseem muaj kev txhawj xeeb. Thaum laus cov txheej txheem ntawm cov khoom siv ua haujlwm tam sim no, Perovskite yuav decompose los tsim cov hmoov txhuas coj dawb thiab cov nyom, uas yuav muaj kev puas tsuaj rau kev noj qab haus huv ib zaug lawv nkag rau tib neeg lub cev.
LUO Jingshan ntseeg tias muaj teeb meem xws li kev ruaj khov tuaj yeem daws tau los ntawm ntaus ntawv ntim. "Yog yav tom ntej, ob yam teeb meem no yog daws, kuj tseem tuaj yeem ua cov khoom siv ua kom tiav rau hauv cov ntaub ntawv sib xyaw ua ke, lossis ua rau cov khoom siv hluav taws xob ua kom zoo dua rau aerospace thiab Lwm thaj teb, yog li ntawd perovskite nyob rau hauv qhov chaw tsis muaj dej thiab oxygen ib puag ncig ua si lub luag haujlwm siab tshaj plaws. " Lua Jingshan yog ntseeg siab txog lub neej yav tom ntej ntawm Perovskite.
Lub sijhawm Post: Apr-15-2023