Akoranga Take: Ngā Wāhanga Karāpiti Parakore-Teitei mō ngā Papa Wera Monocrystalline 32-Inihi i roto i te Tipu Silicon Momo-N

Kupu Whakataki: Te Wero o te Papa Wera 32-Inihi i roto i te Tipu Silicon Momo-N Tino Pai

I te tere o te whakawhiti o te umanga photovoltaics mai i te PERC momo-P ki ngā pūtau rā TOPCon momo-N me te Heterojunction (HJT), kua tino piki ake te hiahia mō ngā anga silicon parakore teitei ake. Ko ngā papa silicon momo-N e hiahia ana ki te roanga oranga kawe iti rawa (te nuinga o te wā >300 μs) me te tata ki te kore te poke o te konganuku whakawhiti.

Hei whakanui ake i te kaha whakaputa, kei te whakawhānui ake ngā kaihanga anga silicon i ngā rahi o te oko ki te 32 inihi me tua atu. Heoi, mā te whakamahi i ngā pāmahana neke atu i te 1,450°C i roto i te papa wera 32-inihi ka puta he wero nui ki te hangarau:

1. Te Whakahekenga Wera me te Kore-taurite:Ka puta te rerekētanga o te hanganga me te ngatata o ngā whakamahana me ngā turanga karāhe paerewa i ngā pikinga wera nui.
2. Te Parahanga o te Konganuku Pupuhi:Ka mimiti haere ngā huānga poke iti (Fe, Ni, Cu, V) i roto i te karāpiti tikanga i te wā e kumea roa ana te tioata, ka heke tika atu ki roto i te silicon rewa, ā, ka tino heke te kounga o ngā kaikawe iti mō tōna oranga katoa.

Otinga Hangarau: Te Whakamarumarutanga o te Graphite Isostatic Tino-Parakore me te CVD SiC

Hei whakakore i ēnei arai hangarau, i whakatinanahia e VeTek Semiconductor tētahi whakahoutanga rauemi whānui puta noa i te huihuinga papa wera 32-inihi katoa, kei roto ko te karāhe isostatic kiato-teitei kua whakamahanahia ki te pāmahana teitei me ngā paninga tiaki CVD Silicon Carbide (SiC).

1. Te Whakamaarama Hōhonu o te Halogen (Te Ihirangi Pungarehu ≤ 2-5 ppm)

Kei roto i te karāpiti ahumahi paerewa te nui o te pungarehu papatipu i waenga i te 50 ppm me te 200 ppm. I te 1,450°C i raro i te korehau, ka memeha haere ēnei huānga iti. Mā tā mātou Tukanga Whakapaipai Hau Halogen Pāmahana-Teitei motuhake ka huri i ngā paru konganuku hei pūhui halogen memeha (hauora/haupūwai) i ngā pāmahana neke atu i te 2,400°C.

• Te Whakamātautau i te Ine Papatipu Tukunga Hihiko (GDMS)e whakamana ana kua heke te tapeke o ngā poke whakarewa (Fe, Cr, Ni, Cu, V) ki raro iho i te 0.5 ppm, ā, ka eke ki te ihirangi pungarehu whānui o te ≤ 2 ppm.
• Hua:Ka whakakore i te putanga mai o te hau whakarewa papamuri, ka tiaki i te puna silicon rewa mai i te poke i roto i ngā huringa kukume tonu neke atu i te 120 hāora.

2. Hanganga Karāwhite Isostatic Teitei-Kōpiko mō te Pūmautanga Wera

Ko ngā wāhanga tae atu ki te whakamahana karāpeti, te pūwero whakaū, me te oko whakamahana ka hangaia mai i te karāpeti isostatic, he matotoru te matotoru (1.85 g/cm³), he pai te kakano (rahi kakano <10 μm). Mā te pēhi isostatic ka whakarite kia rite te whānuitanga wera isotropic (CTE), ka ārai i te ahotea wera ā-rohe, te piko, me te pakaru miihini i raro i ngā huringa wera auau.

3. Paninga Tiaki CVD Silicon Carbide (SiC)

Ko ngā wāhanga nui e pāngia ana e te kohu silicon me ngā hau horoi waikura ka pania ki tētahi paparanga matotoru 50–80 μm o te Silicon Carbide (SiC) Chemical Vapor Deposition (CVD).

• Ārai Waikura:Ka ārai i te tauhohenga matū tika i waenga i te kohu silicon mura (SiO) me te papa graphite (SiO + 2C → SiC + CO), ka whakakore i te horo o te mata me te whakaputa puehu waro.
• Te Tika o te Āhuahanga:Ka pupuri i te āhua o te papa wera tino tika mō ngā wā ratonga roa ake i te 30%.

Ngā Raraunga Mahi i Inehia me te Whakamana Whakamātautau Papa

I whakahaerehia he whakamātautau mara whakatairite e ono marama te roa puta noa i te 50 oumu CZ 32-inihi te rahi i te whare hanga wafer silicon TOPCon taumata-1. Kei raro nei te paearu mahi e whakataurite ana i ngā wāhanga karāti paerewa ki te otinga mara wera parakore a VeTek Semiconductor:

Ngā Pātai Auau (FAQ)

Whakatau me te Whakawhitiwhiti Kōrero Hangarau

Mā te whakapai ake ki ngā wāhanga karāhe isostatic tino parakore me te tiaki CVD SiC ka whakaratohia he ara tika, he ara ine hoki ki te whakaoti i ngā arai hua me te poke i roto i te tipu silicon monocrystalline momo-N 32-inihi. Mā te whakapainga 18% i roto i te hua matua me te roanga o te oranga o te mara wera 30%, ka taea e ngā kaihanga wafer solar te whakatutuki i te ROI nui.