Hnub ci vaj huam sib luag txog kev paub
Ua ntej, lub hauv paus ntsiab lus ntawm hnub ci zog hluav taws xob: Hnub ci lub hlwb yog ib tug khub ntawm cov cuab yeej ua teb rau lub teeb thiab hloov lub zog ua hluav taws xob. Muaj ntau hom khoom siv uas tsim muaj cov teebmeem photovoltaic, xws li: monocrystalline silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, selenium indium copper, thiab cov zoo li. Lawv lub hwjchim tsim tau zoo li qub, thiab kev siv lub hwjchim ua tau lub tswv yim tam sim no tau piav qhia los ntawm kev siv lub siv lead ua ib qho piv txwv. P-hom crystalline silicon yog doped nrog phosphorus kom tau N-hom silicon los ua tus PN hlav. Thaum lub teeb ci ntom nti ntawm lub hnub ci ntawm tes, ib feem ntawm cov photons yog absorbed los ntawm cov khoom silicon; lub zog ntawm cov photons yog xa mus rau lub atoms silicon, ua rau cov electrons txav deb, thiab cov dawb electrons ntim rau ob sab ntawm PN nkag mus tsim ib qho kev sib txawv thaum lub chaw sab nraud tau qhib. Nyob rau lub sij hawm no, nyob rau hauv qhov kev txiav txim ntawm no voltage, ib tug tam sim no yuav ntws los ntawm lub sab nraud Circuit Court los ua kom muaj qee cov zis lub zog. Tus essence ntawm tus txheej txheem no yog tus txheej txheem ntawm hloov photon zog rau hauv hluav taws xob zog.
Thib ob, tsis muaj qhov sib txawv nruab nrab ntawm polycrystalline silicon solar cells thiab monocrystalline silicon solar cells. Lub neej thiab kev ruaj ntseg ntawm polycrystalline silicon hnub ci hlwb thiab monocrystalline silicon hnub ci hlwb zoo heev. Txawm hais tias qhov kev hloov nruab nrab ntawm kev hloov nruab nrab ntawm monocrystalline silicon solar cells yog li 1% siab tshaj qhov nruab nrab ntawm kev hloov nruab nrab ntawm polycrystalline silicon solar hlwb, vim monocrystalline silicon solar hlwb tsuas yog ua rau cov quasi-squares (plaub sab yog arcs), thaum composing solar cell Modules Thaum ib feem ntawm qhov chaw puv, thiab polycrystalline silicon solar cell yog square, tsis muaj qhov teeb meem zoo li no, yog li qhov ua tau zoo ntawm lub hnub ci cell yog tib yam.
Tsis tas li ntawd, txij li thaum cov txheej txheem tsim ntawm ob lub hnub ci ntawm tes yog txawv, lub zog siv nyob rau hauv cov txheej txheem tsim ntawm polycrystalline silicon solar cell yog txog 30% tsawg tshaj li ntawm cov monocrystalline silicon solar cell.
Cov roj ntsha silicon siv roj ua rau muaj roj ntau dua thiab muaj kev ruaj ntseg zoo, tiam sis tus nqi yog siab. Monocrystalline silicon hlwb tau tawg los ntawm txoj kev thaiv kev tshaj li ntawm 20% photodetric conversion efficiency li ntxov li 20 xyoo dhau los.
Tus nqi ntawm polycrystalline silicon hlwb tsawg tsawg, thiab qhov kev hloov dua siab tshiab yog tsawg dua li ntawm Czochralski silicon solar cells. Muaj ntau qhov teeb meem ntawm cov khoom siv xws li cov ciam teb, cov teeb meem, cov teeb meem me, thiab cov khoom tsis haum, xws li cov pa roj carbon thiab cov pa oxygen, thiab cov kab mob hauv cov txheej txheem. Cov kev hloov hlau yog pom tias yog lub rooj vag rau qhov kev yees duab photolectric tus nqi ntawm polycrystalline silicon hlwb kom tsis txhob muaj tshaj 20%.
Cov yam ntxwv ntawm monocrystalline silicon solar cells: 1. Siab photoelectric conversion efficiency thiab kev ntseeg siab; 2. Advanced diffusion tshuab los ua kom tsis muaj kev hloov ntawm kev hloov pauv txhua qhov movie; 3. Siv cov yeeb yaj duab PECVD uas tau tsim los ntawm lub nplhaib ntawm cov roj teeb Nws yog coated nrog xiav silicon nitride anti-reflection film nrog uniform xim thiab zoo nkauj tsos. 4. Cov khoom zoo zoo muab siv ua kom rov qab rau sab nraud thiab electrode kom paub meej tias zoo coj ua. Polycrystalline silicon yuav siv tau ua ib qho khoom siv rau kev kos duab ib qho siv lead ua silicon, thiab qhov sib txawv ntawm polycrystalline silicon thiab ib qho siv lead ua silicon yog mas pom hauv cov khoom hauv lub cev. Piv txwv, nyob rau hauv cov nqe lus ntawm anisotropy ntawm mechanical zog, optical thaj chaw, thiab thermal thaj, nws yog tsawg dua cov lus tshaj li monocrystalline silicon; nyob rau hauv cov nqe lus ntawm hluav taws xob khoom, polycrystalline silicon muaju yog ntau conductive ntau tshaj li monocrystalline silicon, thiab txawm muaj me ntsis conductivity. Raws li kev ua tshuaj, qhov txawv ntawm ob yog tsawg kawg. Polycrystalline silicon thiab crystal silicon ib qho sib txawv tau sib txawv los ntawm txhua lwm yam hauv qhov tsos, tab sis qhov tseeb cim yuav tsum tau txiav txim siab los ntawm kev ntsuas ntawm lub dav hlau ntxeem taw qhia, hom kab mob, thiab resistivity. Cov khoom noj yog nyob rau hauv luv luv thiab cov kev cia siab rau txoj kev loj hlob yog sab heev. Vim li no, ntau tus neeg hais tias leej twg masters polysilicon thiab microelectronics technology yuav tswj tau lub ntiaj teb.
Qeb peb, cov koob yuav ua rau kom muaj qhov tso zis hluav taws xob, thiab qhov sib npaug yuav muab cov zis tawm tam sim no. Qhov no yog tiav los ntawm kev ua qauv zoo tib yam, piv txwv li: 220 volts ntawm 10 amps yog yuav tsum tau ua. Siv 880 panels ntawm 0.5 volt 5 amp tso tawm, 440 nyob rau hauv series raws li thawj pab pawg, ces ib pawg thib ob, thiab ces ob pawg nyob rau hauv parallel, yuav tau txais 220 volts 10 amp tso zis.
Plaub, kev ntsuas vaj huam sib luag hnub ntsuas
Hnub ci vaj huam sib luag txuj kev sim khoom txuj ci Hnub ci vaj huam sib luag txuj kev ntsuas txuj ci Hnub ci vaj huam sib luag txuj kev ntsuas txuj ci Hnub ci vaj huam sib luag qauv kev xeem (simulated solar light)
1. Qhib cov qhov hluav taws xob ntawm qhov hluav taws xob: siv 500W tungsten halogen teeb, 0 ~ 250V AC transformer, teeb qhov teeb yog teev rau 3.8 ~ 4.0 lab LUX, qhov kev ncua deb ntawm lub teeb thiab kev xeem ntawv yog li 15-20CM, thiab tus nqi ncaj qha yog qhov qhib hluav taws xob qhov hluav taws xob;
2. Luv luv luv tam sim no: siv 500W tungsten halogen teeb, 0 ~ 250V AC transformer, teeb qhov teeb yog teev rau 3.8 ~ 4.0 lab LUX, qhov kev ncua deb ntawm lub teeb thiab kev xeem ntawv yog li 15-20CM, thiab qhov kev kuaj ntawd tus nqi yog luv-qhov tam sim no;
3. Ua haujlwm tsis zoo: siv 500W tungsten halogen teeb, 0 ~ 250V AC transformer, teeb qhov teeb yog teev rau 3.8 ~ 4.0 lab LUX, qhov kev ncua deb ntawm lub teeb thiab kev xeem ntawv yog li 15-20CM, thiab qhov zoo thiab tsis zoo ncej muaj kev cob cog nyob rau hauv parallel. Kev ua haujlwm, (xam ntawm tus nqi ua haujlwm: R = U / I), qhov kev ntsuas tus nqi yog qhov ua haujlwm ua haujlwm;
4. Ua haujlwm tam sim no: siv 500W tungsten halogen teeb, 0 ~ 250V AC transformer, teeb qhov teeb yog teev rau 3.8 ~ 4.0 lab LUX, qhov kev ncua deb ntawm lub teeb thiab kev xeem ntawv yog li 15-20CM, nyob rau hauv series, (Lub xam ntawm tus nqi kuj: R = U / I), qhov kev ntsuas tus nqi yog kev khiav hauj lwm tam sim no.