Shin BC Fasaha Guda ce? Bude Iyalan Tantanin Rana na XBC

Gabatarwar Samfur

Fasahar tantanin halitta ta BC ba samfurin tantanin halitta guda ɗaya ba ce. Fasaha ce ta dandamali. Ka yi la'akari da ita a matsayin falsafar ƙirar tsarin tantanin halitta gabaɗaya, gine-ginen da zai iya haɗuwa da haɗawa da fasahohin tuntuɓar siliki na crystalline da yawa. Daga wannan, hanyoyin tantanin halitta masu inganci daban-daban suna fitowa.

Ƙa'idar Jiki: Inganta Tsari, Ba Juyin Halitta na Kayan Aiki ba

BC na nufin Back Contact. Babban sabon abu shine a cikin tsarin. Ba kamar tantanin rana na al'ada ba, tantanin BC yana sanya dukkan na'urorin grid na ƙarfe a bayan tantanin, don haka gaban ba shi da layin grid da ke inuwa kwata-kwata.

Wannan ƙira tana kawo manyan fa'idodi biyu:

• Ingantacciyar ingantaccen canji: rashin inuwa a gaba yana nufin cewa photons masu shigowa ana amfani da su iyaka, wanda ke ɗaga gajeriyar kewayar wutar lantarki kuma yana ba da ingantaccen canjin hasken lantarki. Misali, tantanin HBC da aka gina akan wannan hanya ya kafa rikodin duniya na 27.81% don tantanin siliki na crystalline guda ɗaya.

• Kyakkyawan kyan gani: gaban tantanin yana nuna farfajiyar baƙi mai tsafta, baƙi. Yana da tsabta, wanda ya dace da yanayin da ke da buƙatun kyau kamar ginin-hada-hada photovoltaics (BIPV).

Iyalin Fasaha: BC Haɗe da Sauran Hanyoyi

A matsayin fasahar dandamali, BC ba keɓantacce ba. Yana iya haɗuwa da PERC, TOPCon, HJT da ƙari, yana samar da babban iyali na XBC. Waɗannan hanyoyin da aka samo suna gaji da inganci da kyawun tsarin BC yayin da suke ɗauke da halayen kowace fasaha ta tushe.

• IBC (Interdigitated Back Contact): mafi tsafta, mafi asali nau'in fasahar BC.

• TBC (Tunnel oxide passivated contact Back Contact): BC hade da fasahar TOPCon (tunnel oxide passivated contact).

• HBC (Hetero Junction Back Contact): BC hade da HJT (heterojunction). A halin yanzu yana riƙe da rikodin inganci.

• HPBC (Hybrid Passivated Back Contact): fasahar tantanin baya mai haɗaɗɗiyar kariya da LONGi ta ƙaddamar.

• ABC (All Back Contact): fasahar tantanin baya gaba ɗaya da Aiko Solar ta ƙaddamar.

Aikace-aikacen Samfur

Kwayoyin BC suna nuna fa'idodi a bayyane a inganci da kamanni, amma hanyar samarwa da yawa tana da ƙalubale na gaske.

• Tsari mai rikitarwa, farashi mafi girma: bayan tantanin BC yana buƙatar yankuna P da N masu canzawa, wanda ke nufin tsarin laser mai madaidaici, rufewa da sauran matakai masu rikitarwa. Bukatun daidaiton kayan aiki da yawan amfanin suna da yawa sosai. Don haka saka hannun jari na farko na kayan aiki da farashin masana'anta suna sama da PERC da TOPCon na yau da kullun.

• Hanyar rage farashi a bayyane: yayin da fasaha ke maimaitawa, masana'antar tana rage farashi ta hanyar amfani da tsarin laser maimakon photolithography na gargajiya, da kuma inganta ƙarfe mara azurfa kamar lantarkin jan ƙarfe.

• Masana'antu na kara sauri: shugabanni kamar LONGi da Aiko Solar suna matsa lamba sosai kan samar da BC cell a manyan ma'auni, tare da iyawar da aka tsara ta riga ta kai matakin gigawatts goma. Yayin da sarkar samar da kayayyaki ta balaga kuma tasirin ma'auni ya fara aiki, hanyar BC tana da damar daukar matsayi mafi muhimmanci a kasuwar PV ta gaba bisa ga fa'idar ingancinta.

Ra'ayin Ooitech

Abin da ke sa dangin XBC ya zama mai wahala a masana'anta ba cell din kanta ba ne, matakin haɗa wayoyi ne, tunda back-contact cells suna sauke front busbars kuma suna buƙatar haɗi daban-daban fiye da na'urorin tabber-stringer na yau da kullun. Muna gina stringers masu jituwa da BC waɗanda ke sarrafa IBC, TBC, HBC, HPBC da ABC cells akan layi daya, wanda ke da muhimmanci sosai lokacin da masana'anta ke son buɗe zaɓuɓɓuka yayin da waɗannan hanyoyin ke ci gaba da canzawa. Idan kuna son ganin yadda layukan module ke aiki a zahiri, tashar Ooitech YouTube (www.youtube.com/ooitech) tana da daraja a bi don hotunan masana'anta na gaske.