Knowledges

PERT solar cell | Zvese zvaunoda kuziva

PERT solar cell | Zvese zvaunoda kuziva

PERT solar maseru akayerwa zvakanyanya pakati peakanyanya-simba ezuva tekinoroji tekinoroji anogona kubatanidzwa mune mono kumeso uye bifacial solar cell dhizaini. 

Kunyangwe PERT solar maseru ari kudhura kugadzira pane akajairwa masilicon emamwe uye anonyanya kushandiswa mumaindasitiri e niche senge mota dzezuva kana nzvimbo yekushandisa, vese vanogadzira masero ezuva vari kuedza kuvaka uye kushambadzira nechinangwa chekupa magumo epamusoro. uye qualitative solutions kune vatengi vavo. Bifacial solar masero ari kuwana mukurumbira mukuru. Kana dzakamisikidzwa zvakanaka munzvimbo dzakavhurika kana nzvimbo dzakati sandara, dzinogona kutora chiedza uye dzinokwanisa kuburitsa simba remagetsi kubva kumativi ese- ichiguma nekupa kusvika 30% goho rakawedzera kupfuura maseru ako emazuva ese.

PERT solar maseru: anoshanda sei? 

PERT inomirira Passivated Emitter Rear Yakapararira zvachose masero. Vane nzvimbo yakaparadzaniswa yeshure, inova shanduko huru kubva kune yakajairwa vamwe vanoshandisa iyo aluminium-alloy BSF. Zvichitaurwa zviri nyore, emitter yep-mhando yakavakirwa wafer inogadzirwa ne phosphorus diffusion, uye iyo BSF inoitwa kuburikidza ne boron doping mu p-PERT. 

Masero ePERT haadzivirirwe pakusvibiswa-kunokonzerwa nechiedza uye anogona kuenderana nechimiro chebifacial cell. Izvi zvakangobva kusimudzira kufarira kwesolar PV chikamu uye mayunivhesiti ekutsvagisa. PV masayendisiti ari kuyedza mamwe maseru ekuvaka kusimudzira kushanda kweindasitiri-inoshandisika maSi solar maseru- kunyanya ikozvino iyo yakakosha yePERC chimiro chinoita senge yawana bani reiyo inogoneka yekushandura simba chikumbaridzo.

PERT solar masero efficacy

 Pasi pezvakajairwa parameters ye AM1.5 spectrum pa 25 ° Celcius tembiricha, yakakwirira-inoshanda passivated emitter; Passivated Emitter Rear Yakapararira zvachose maseru akawana simba rekushandura simba ringaita 25 per cent. Iyi ndiyo inonyanya kuvimbisa simba rekushandura simba rakamborekodhwa yesilicon cell yakavakirwa pane isiri-FZ silicon substrate. Iyo yakapfava boron diffusion musero chimiro chePERT sero haina kungoderedza kutevedzana kwesero asi yakawedzera kuvhurika-circuit voltage. 

P-mhando PERC V/S N-mhando PERT 

Iyo PERC, inomiririra passivated emitter kumashure kwekusangana chimiro, inoratidzira yakasarudzika kumashure kwepamusoro munda, inova ndiyo yekutanga musiyano pakati pe-p-mhando PERC uye n-mhando PERT (BSF). Iyo BSF inofambiswa panguva yesimbi co-firing mashandiro nedoping Al muSi. Nekumisikidza yakakwira-yakaderera yakabatana neiyo p-mhando Si base wafer, BSF inobatsira mukuvandudza kushanda kwesolar cell. Vamhanyi vashoma vanodzorwa neichi chinongedzo, chinovatadzisa kubatana paSi wafer's back surface. 

Iyo kumashure kwechimiro chePERT, pane zvinopesana, "yakapararira zvachose" ne boron (p-type) kana phosphorus (n-type). PERT solar cell tekinoroji inonyanya kushandiswa mun-mhando Si masero. Izvi ndezvekubatsirikana kubva mukushivirira kwepamusoro kune kusvibiswa kwesimbi, yakaderera tembiricha coefficient, uye kuderedzwa kwechiedza-induced kudzikisira kwen-mhando Si wafers pamusoro pep-mhando Si wafers. Nekuda kwekuti huwandu hwen-type wafer hwakaremerwa phosphorus, kuparara-kunokonzerwa nechiedza kunoderedzwa mun-mhando Si, zvichida nekuda kwekudzika kwe boron-oxygen pairings. 

Zvisinei neizvi, iyo "yakapararira" BSF inoda kushandiswa kwemaitiro matsva senge tembiricha yepamusoro POCL neBBr3 kupararira. Nekuda kweizvozvo, kugadzira PERT solar maseru kunodhura kupfuura PERC. 

Asi, iyo  Passivated Emitter Rear Yakapararira zvachose maseru 'akazara-nzvimbo BSF inogona kupa inoshanda yakakwira-yakaderera junction passivation rendition kupfuura iyo PERC's yakavharirwa, yakaoma Al-based BSF. Iyo tunnel oxide passivated contact (TOPCON) chimiro chinogona zvakare kubatanidzwa nen-mhando PERT. Inokwanisa kufambisa kubuda kwemudziyo zvakanyanya. 

Nekuda kweSi substrate feathering nekuwedzera hupenyu hwevashoma uye pasina BO yakaoma inoenderana nekudzikira, N-mhando yesilicon solar masero ari kuramba achikwira kumusoro pamachati akakurumbira. Nekuda kwekureruka kwekugadzirisa, Bifacial Passivation Emitter uye PERT n-mhando solar maseru mhinduro dzakasimba dzinogona kugadzirwa zviri nyore. Chizvarwa cheP + emitters yaive imwe yeakakosha maitiro ePERT. Kwemakore, BBr3 diffusion yakavambwa yekugadzirwa kwakawanda, asi n-mhando solar cell industry yakakanganiswa ne dopant homogeneity uye process yekubatanidza. Iko kusanganiswa kweboron ink spin coating uye POCl3 kupararira mun-PERT solar masero akaongororwa uye akanyorwa mune bepa rekutsvagisa. Solar masero ane bifaciality inopfuura 90 muzana akawanikwa ane kubudirira kweanopfuura 20.2 muzana, maererano nezvakawanikwa.

Iyo n-type bifacial PERT solar cell inogona kugadzirwa uchishandisa nzira inoyerera inosanganisira iyo ion implantation yeimwe-sided doping. Inotungamira kune yakasarudzika emitter junction mhando uye kuenderana.

PERT solar maseru anopa akawanda mabhenefiti, mazhinji acho akanyorwa sepazasi:

●      Kusiyana nePERC solar maseru, iyo PERT vhezheni inowana hunyanzvi hwepamusoro kuburikidza nekufambisa pane-multi-material, kureva Boron BSF PERT sirin'i yakawanda, isina kusvibiswa-induced degradation (LID).

●      Mutengo wekuva muridzi wakafanana neyePERC maseru.

●      Iyo PERT mutsara inogona zvakare kushandiswa kune mono kumeso kana bifacial maseru, ichipa iyo yakawanda kuita kwakasiyana-siyana.

PERT solar kugadzira maseru 

PERT solar maseru anogadzirwa achishandisa nzira dzakasiyana siyana uye musanganiswa kukwirisa akasiyana maseru marudzi. Kweanopfuura makore gumi, matekinoroji matsva akangwara akadai seAtmospheric Pressure Chemical Vapor Deposition (APCVD) masisitimu akapihwa mukugadzira kuti ape zvinhu nekugamuchirwa kwakanyanya. Pamusoro pezvo, uchishandisa Horizontal Tube Furnace, phosphorus emitter uye boron BSF zvinoburitswa mukutenderera kumwe kwekupisa, zvichikonzera kupfupika kutenderera kwenguva. Nokuti Passivated Emitter Rear Yakapararira zvachose maseru anogona zvakare kushandiswa mune echinyakare back-sheet modules, kugadzirisazve mutsara wekugadzira kuti uende kubva kumono kumeso kuenda kune bifacial kugadzira ibasa remaawa mashoma chete.