Lub Luag Haujlwm Tseem Ceeb ntawm Laser Technology hauv Photovoltaic Cell Manufacturing

Raws li kev lag luam photovoltaic (PV) txuas ntxiv mus nrhiav kev hloov pauv siab dua thiab cov nqi tsim khoom qis dua, cov txheej txheem thev naus laus zis tau dhau los ua qhov tseem ceeb hauv kev ua haujlwm ntawm lub cell thiab kev nthuav dav. Los ntawm PERC mus rau TOPCon thiab HJT, thiab ntxiv mus rau perovskite thiab tandem hnub ci cells, cov qauv ntawm lub cell tau dhau los ua qhov nyuaj dua thaum cov txheej txheem qhov rais loj hlob nqaim dua. Hauv qhov kev hloov pauv no, cov thev naus laus zis laser tau hloov pauv los ntawm cov cuab yeej txhawb nqa mus rau lub peev xwm tsim khoom tseem ceeb uas txhawb nqa ntau tiam neeg ntawm cov cell PV ua haujlwm siab.

Hauv cov kab ntau lawm PERC, kev siv laser ablation ua rau muaj kev sib txuas ntawm cov khaubncaws sab nraud povtseg passivation los tsim cov kev sib cuag hauv zos ruaj khov. Hauv kev tsim khoom TOPCon, kev siv laser boron doping yog qhov tseem ceeb rau kev ua haujlwm ntawm cov cell ntau dua 26%. Hauv cov hlwb perovskite thiab tandem tshiab, kev siv laser scribing txiav txim siab seb puas ua tau thaj chaw loj, kev sib npaug zoo. Nrog nws qhov xwm txheej tsis sib cuag, qhov tseeb siab, thiab thaj chaw kub tsawg, cov thev naus laus zis laser tau dhau los ua qhov tseem ceeb ntawm kev txhim kho kev ua haujlwm thiab kev ntseeg siab ntawm kev tsim khoom thoob plaws hauv kev lag luam PV.

Kev Siv Tshuab Laser Ua Lub Hauv Paus Rau Kev Tsim Khoom PV Siab Tshaj Plaws

Raws li cov thev naus laus zis ntawm tes nce qib, cov chaw tsim khoom ntsib ntau yam teeb meem sib koom ua ke: cov yam ntxwv zoo nkauj, cov ntaub ntawv rhiab heev, thiab cov kev cai nruj dua. Kev ua laser daws cov teeb meem no los ntawm kev sib xyaw ua ke ntawm cov peev xwm:
* Kev ua tsis sib cuag, zam kev ntxhov siab thiab micro-cracks
* Kev tswj hwm qhov chaw ntawm Micron, tsim nyog rau cov qauv cell zoo thiab nyuaj
* Kev siv hluav taws xob luv luv hauv zos, txo qhov puas tsuaj los ntawm cua sov
* Kev sib raug zoo nrog kev tswj hwm automation thiab kev tswj hwm cov txheej txheem digital
Cov cwj pwm no ua rau cov thev naus laus zis laser ua rau muaj ntau yam thiab hloov kho tau yooj yim, siv tau los ntawm cov hlwb crystalline silicon mus rau cov qauv tandem tiam tom ntej.

Cov Kev Siv Laser Tseem Ceeb Hauv Cov Txuj Ci Tseem Ceeb Hauv Cell
1. PERC Cells: Ib qho qauv ua laser laus
Kev vam meej hauv kev lag luam ntawm PERC (Passivated Emitter thiab Rear Cell) thev naus laus zis muaj feem cuam tshuam nrog kev ua cov laser loj. Laser ablation yog siv los qhib cov txheej aluminium oxide passivation ntawm sab nraub qaum, tsim cov kev sib cuag hauv zos thaum tseem khaws cia kev ua haujlwm passivation.
Tsis tas li ntawd xwb, laser selective emitter (SE) doping ua rau muaj kev doping hnyav hauv qab cov neeg sib cuag pem hauv ntej, txo qhov kev tiv thaiv kev sib cuag thiab feem ntau txhim kho kev ua haujlwm ntawm lub cell los ntawm kwv yees li 0.3%. Kev loj hlob thiab kev ruaj khov ntawm cov txheej txheem laser no tau txhawb nqa kev tsim khoom loj mus sij hawm ntev thiab kev lag luam ntawm PERC cell.

2. TOPCon Cells: Laser Boron Doping ua ib qho Txheej Txheem Tshiab
Cov cell TOPCon (Tunnel Oxide Passivated Contact) siv N-hom silicon wafers, muab cov txiaj ntsig zoo hauv kev xaiv tus neeg nqa khoom thiab kev ua haujlwm hluav taws xob. Txawm li cas los xij, kev sib kis boron hauv qhov cub kub siab ua rau muaj kev cov nyom, suav nrog kev siv hluav taws xob ntau, kev xa khoom qeeb qeeb, thiab kev pheej hmoo ntxiv rau kev ua kom huv ntawm qhov tunnel oxide.
Kev siv laser boron doping ua rau muaj cua sov hauv zos, ceev heev, ua rau cov boron atoms kis mus rau thaj chaw tshwj xeeb yam tsis muaj kev kub hnyiab rau tag nrho cov wafer. Txoj hauv kev no txo ​​qhov kev tiv thaiv kev sib cuag thaum tswj hwm qhov zoo ntawm passivation thiab feem ntau suav tias yog ib qho txheej txheem tseem ceeb rau kev thawb TOPCon cov txiaj ntsig tshaj 26%.

3. HJT Cells: Laser-Induced Annealing rau Interface Optimization
HJT (Heterojunction) cov hlwb vam khom cov txheej silicon amorphous rau qhov zoo heev ntawm qhov chaw passivation. Txawm li cas los xij, qhov tsis zoo ntawm qhov interface xws li kev sib txuas dai tseem tuaj yeem ua rau muaj kev sib koom ua ke ntawm cov cab kuj.
Kev siv laser-induced annealing (LIA) siv cov laser irradiation tswj los ua kom hydrogen migration ntawm amorphous/crystalline silicon interface, kho qhov tsis zoo hauv situ. Cov txheej txheem no tau pom tias txhim kho qhov qhib-circuit voltage (Voc) thiab fill factor (FF), ua rau nws yog ib txoj hauv kev siv tau zoo rau HJT efficiency optimization.

4. Perovskite thiab Tandem Cells: Laser Scribing rau Scalable Integration
Hauv cov hlwb perovskite thiab perovskite/silicon tandem, kev ua laser tsis yog tsuas yog ib qho cuab yeej tsim khoom xwb tab sis kuj yog ib qho kev pab txhawb nqa. Cov kauj ruam laser scribing P1, P2, thiab P3 txhais cov electrode segmentation, sub-cell isolation, thiab series interconnection.
Vim tias qhov xwm txheej tsis ruaj khov thiab ntau yam kev ruaj khov ntawm cov txheej txheem ua haujlwm, kev ua laser - nrog nws cov yam ntxwv tsis sib cuag thiab muaj qhov tseeb siab - yog qhov tseem ceeb rau kev ua tiav kev ua haujlwm siab thiab kev sib xws hauv cov khoom siv loj. Yog li ntawd, laser scribing yog suav tias yog ib qho ntawm cov txheej txheem tseem ceeb rau kev lag luam tandem cell.

Cov Txheej Txheem Laser Rau Lub Hom Phiaj Dav Dav Rau Kev Txo Nqi thiab Kev Txhim Kho Cov Khoom
Dhau li ntawm cov ntawv thov tshwj xeeb rau lub cell, cov thev naus laus zis laser kuj txhawb nqa ntau cov kauj ruam tsim khoom hla platform:
* Kev hloov pauv gridline raws li laser: Ua rau cov electrodes zoo dua thiab zoo dua qub piv rau kev luam ntawv, txo qis kev siv cov nyiaj nplaum, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem kub qis xws li HJT.
* Kev txiav laser uas tsis muaj kev puas tsuaj: Tso cai rau kev ua tiav ib nrab-cell thiab ntau-txiav nrog kev txo qis kev pheej hmoo ntawm micro-crack, txhim kho cov zis hluav taws xob module.
* Kev rho tawm ntug laser thiab kev ua kom tsis muaj zog: Kho qhov puas tsuaj ntawm ntug tom qab txiav, txo qhov poob ntawm kev sib xyaw ua ke thiab pab txhawb rau kev ua haujlwm zoo ntawm qib module.
Cov txheej txheem laser dav dav no ua lub luag haujlwm tseem ceeb hauv kev txo tus nqi ib watt thaum txhim kho tag nrho cov txiaj ntsig tsim khoom.

Kev Tswj Xyuas Kub : Lub Hauv Paus ntawm Kev Ua Haujlwm Laser Ruaj Khoov
Thaum lub sijhawm tsim khoom PV txav mus rau qhov muaj peev xwm ntau dua thiab ua haujlwm ntev ntev, kev ruaj khov ntawm cov txheej txheem laser ua rau muaj kev vam khom ntau ntxiv rau kev tswj hwm thermal kom raug. Txawm tias qhov hloov pauv me me hauv cov zis laser tuaj yeem cuam tshuam ncaj qha rau kev tiv thaiv kev sib cuag, qhov ceev ntawm qhov tsis xws luag, lossis qhov dav ntawm kab.
Hauv cov chaw tsim khoom, cov khoom siv laser thiab cov khoom siv kho qhov muag ua haujlwm nyob rau hauv cov cua sov tas mus li. Yog li ntawd, cov tshuab txias thiab tswj qhov kub thiab txias txhim khu kev qha yog qhov tseem ceeb rau kev tswj hwm lub zog laser ruaj khov, txo qis kev hloov pauv hluav taws xob, thiab xyuas kom meej tias cov txiaj ntsig ua tiav rov ua dua. Kev tswj hwm thermal zoo ntawm cov khoom siv laser, cov khoom siv hluav taws xob, thiab cov khoom sib dhos kho qhov muag pab ncaj qha rau cov txiaj ntsig siab dua thiab cov txheej txheem robust, tshwj xeeb tshaj yog rau TOPCon, HJT, thiab tandem cells nrog cov npoo txheej txheem nqaim dua.
Cov kev daws teeb meem tswj kub hauv kev lag luam uas tsim los rau cov ntawv thov laser muaj zog siab txuas ntxiv mus rau kev ruaj khov dua, teb sai dua, thiab kev ntseeg siab rau kev ua haujlwm mus sij hawm ntev, muab lub hauv paus ruaj khov rau kev tsim khoom PV siab heev.

Xaus lus
Txij li kev lag luam loj ntawm PERC cell mus rau kev siv sai ntawm TOPCon thiab HJT technologies, thiab mus tom ntej rau kev tshawb nrhiav ntawm tandem architectures, laser technology yeej ib txwm khiav los ntawm cov kauj ruam tseem ceeb tshaj plaws ntawm kev tsim photovoltaic cell. Txawm hais tias nws tsis txhais qhov kev txwv ntawm kev ua haujlwm theoretical, nws txiav txim siab tias qhov kev ua haujlwm ntawd puas tuaj yeem tsim tau tas li, tswj tau, thiab ntawm qhov loj me.
Thaum kev lag luam PV nce qib mus rau qhov ua tau zoo dua thiab kev ntseeg siab dua ntawm kev tsim khoom, kev ua laser, nrog rau kev txhawb nqa theem system uas ua kom nws ruaj khov, yuav tseem yog tus tsav tsheb tseem ceeb ntawm kev nce qib thev naus laus zis thiab kev txhim kho kev lag luam.