U-2022 unyaka ogcwele izinselelo zomhlaba wonke.Ubhubhane lweNew Champions alukapheli ngokuphelele, futhi isimo esibucayi eRussia nase-Ukraine sesilandele.Kulesi simo samazwe ngamazwe esiyinkimbinkimbi nesiguquguqukayo, isidingo sokuvikeleka kwamandla kuwo wonke amazwe emhlabeni sikhula usuku nosuku.
Ukuze ubhekane negebe elikhulayo lamandla esikhathini esizayo, imboni ye-photovoltaic idonsele ukukhula kokuqhuma.Ngasikhathi sinye, amabhizinisi ahlukahlukene aphinde akhuthaze ngentshiseko isizukulwane esisha sobuchwepheshe be-photovoltaic cell ukubamba imakethe yezindawo eziphakeme.
Ngaphambi kokuhlaziya umzila wokuphindaphinda wobuchwepheshe beselula, sidinga ukuqonda isimiso sokukhiqiza amandla e-photovoltaic.
Ukukhiqiza amandla e-Photovoltaic ubuchwepheshe obusebenzisa umphumela we-photovoltaic we-interface ye-semiconductor ukuguqula ngokuqondile amandla okukhanya abe amandla kagesi.Umgomo wayo oyinhloko umphumela we-photoelectric we-semiconductor: isenzakalo somehluko ongaba khona phakathi kwe-semiconductor ehlukahlukene noma izingxenye ezihlukene ze-semiconductor kanye ne-metal bonding ebangelwa ukukhanya.
Lapho ama-photon ekhanya ensimbi, amandla angamuncwa i-electron esensimbi, futhi i-electron ingaphuma endaweni yensimbi ibe i-photoelectron.Ama-athomu e-silicon anama-electron amane angaphandle.Uma ama-athomu e-phosphorus anama-electron amahlanu angaphandle efakwa ezintweni ze-silicon, ama-silicon wafers ohlobo lwe-N angakhiwa;Uma ama-athomu e-boron anama-electron amathathu angaphandle efakwa ezintweni ze-silicon, kwakheka i-silicon chip yohlobo lwe-P."
I-chip yebhethri yohlobo lwe-P kanye ne-chip yebhethri yohlobo lwe-N zilungiswa ngokulandelana ngohlobo lwe-silicon chip nohlobo lwe-silicon chip ngobuchwepheshe obuhlukahlukene.
Ngaphambi kuka-2015, ama-battery chips e-aluminium back field (BSF) ayethatha cishe yonke imakethe.
Ibhethri le-Aluminium back field liwumzila webhethri wendabuko kakhulu: ngemuva kokulungiswa kwe-PN junction ye-crystalline silicon photovoltaic cell, ungqimba lwefilimu ye-aluminium lufakwa endaweni yokukhanya ye-silicon chip ukuze kulungiswe ungqimba lwe-P +, ngaleyo ndlela yakhe insimu engemuva ye-aluminium. , ukwakha inkambu kagesi ye-junction ephezulu nephansi, nokuthuthukisa i-voltage yesifunda evulekile.
Nokho, ukumelana nemisebe yebhethri yasensimini yasemuva ye-aluminium kubi.Ngesikhathi esifanayo, ukusebenza kahle kokuguqulwa komkhawulo kungama-20% kuphela, futhi izinga langempela lokuguqulwa liphansi.Nakuba eminyakeni yamuva nje, imboni iye yathuthukisa inqubo yebhethri ye-BSF, kodwa ngenxa yemikhawulo yayo yemvelo, ukuthuthukiswa akukukhulu, okuyisizathu futhi sokuthi kungani kuhloselwe ukushintshwa.
Ngemuva kuka-2015, isabelo semakethe se-Perc battery chips sikhule ngokushesha.
I-chip yebhethri ye-Perc ithuthukiswe isuka ku-chip yebhethri ye-aluminium evamile.Ngokunamathisela isendlalelo se-dielectric passivation ngemuva kwebhethri, ukulahlekelwa kwe-photoelectric kuncishiswa ngempumelelo futhi ukusebenza kahle kokuguqula kuyathuthukiswa.
Unyaka we-2015 wawungunyaka wokuqala wokuguqulwa kwezobuchwepheshe kwamaseli e-photovoltaic.Kulo nyaka, ukuthengiswa kobuchwepheshe be-Perc kuqediwe, futhi ukusebenza kahle kokukhiqizwa kwamabhethri kudlule umkhawulo wokuguqulwa kokusebenza kahle kwamabhethri e-aluminium back field ngo-20% okokuqala ngqa, angena ngokusemthethweni esigabeni sokukhiqiza ngobuningi.
Ukusebenza kahle kwezinguquko kumele izinzuzo eziphezulu zomnotho.Ngemuva kokukhiqizwa ngobuningi, isabelo semakethe se-Perc battery chips sikhule ngokushesha futhi sangena esigabeni sokukhula ngokushesha.Isabelo semakethe sikhuphuke sisuka ku-10.0% ngo-2016 saya ku-91.2% ngo-2021. Njengamanje, isiphenduke inkambinkimbi yobuchwepheshe bokulungiswa kwe-chip yebhethri emakethe.
Mayelana nokusebenza kahle kokuguqulwa, ukuguqulwa okumaphakathi kokusebenza kahle kokukhiqizwa kwesilinganiso esikhulu samabhethri e-Perc ngo-2021 kuzofinyelela ku-23.1%, u-0.3% ngaphezulu kwalokho ngo-2020.
Ngokombono wokusebenza kahle komkhawulo wethiyori, ngokuya ngokubala kweSolar Energy Research Institute, ukusebenza kahle komkhawulo wethiyori webhethri yohlobo lwe-P-monocrystalline silicon Perc kungu-24.5%, okusondele kakhulu ekusebenzeni kahle komkhawulo wethiyori okwamanje, futhi kunomkhawulo. indawo yokuthuthukisa esikhathini esizayo.
Kodwa okwamanje, i-Perc iwubuchwepheshe obujwayelekile be-chip yebhethri.Ngokusho kwe-CPI, ngo-2022, ukusebenza kahle kokukhiqiza okuningi kwamabhethri e-PERC kuzofinyelela ku-23.3%, amandla okukhiqiza azobala ngaphezu kuka-80%, futhi isabelo semakethe sisazobekwa kuqala.
Ibhethri lamanje lohlobo lwe-N linezinzuzo ezisobala ekusebenzeni kahle kokuguqulwa futhi lizoba inkambiso yesizukulwane esilandelayo.
Umgomo wokusebenza we-chip yebhethri yohlobo lwe-N yethulwe ngaphambilini.Awukho umehluko obalulekile phakathi kwesisekelo setiyori sezinhlobo ezimbili zamabhethri.Kodwa-ke, ngenxa yomehluko kubuchwepheshe bokusabalalisa u-B no-P ekhulwini leminyaka, babhekana nezinselele ezahlukene kanye namathemba entuthuko ekukhiqizweni kwezimboni.
Inqubo yokulungiselela yohlobo lwebhethri lohlobo luka-P ilula uma kuqhathaniswa futhi izindleko ziphansi, kodwa kunegebe elithile phakathi kwebhethri yohlobo luka-P kanye nohlobo lwebhethri lohlobo luka-N mayelana nokusebenza kahle kokuguqulwa.Inqubo yebhethri yohlobo lwe-N iyinkimbinkimbi kakhulu, kodwa inezinzuzo zokusebenza kahle kokuguqulwa, akukho ukuncishiswa kokukhanya, nomphumela omuhle wokukhanya obuthakathaka.
Isikhathi sokuthumela: Oct-14-2022