Ilimi

Bayanin fasaha da fa'idodi na Topcon photovoltaic module

TOPCon (Tunnel Oxide Passivated Contact) fasahar ƙirar ƙirar hoto (PV) tana wakiltar sabbin ci gaba a masana'antar hasken rana don haɓaka haɓakar tantanin halitta da rage farashi. Tushen fasahar TOPCon ya ta'allaka ne a cikin keɓantaccen tsarin tuntuɓar saƙon wucewa, wanda da kyau yana rage haɗuwar mai ɗaukar hoto a saman tantanin halitta, ta haka yana haɓaka haɓakar canjin tantanin halitta.

Babban Halayen Fasaha

1. Tsarin Tuntuɓi PassivationKwayoyin TOPCon suna shirya wani Layer silicon oxide mai girma (1-2nm) a bayan wafer siliki, sannan kuma jigon Layer na silicon polycrystalline doped. Wannan tsarin ba wai kawai yana ba da kyakkyawar hanyar sadarwa ba amma kuma yana samar da tashar jigilar jigilar kayayyaki, yana ba da damar mafi yawan dillalai (electrons) su wuce yayin da suke hana tsirarun dillalai (ramuka) sake haɗawa, don haka yana haɓaka ƙarfin buɗaɗɗen kewayawa ta tantanin halitta (Voc) da cikawa. factor (FF).

2. Babban Canjin Canjin: Matsakaicin ingantaccen ka'idar ƙwayoyin TOPCon ya kai 28.7%, wanda ya fi girma fiye da 24.5% na ƙwayoyin P-type PERC na gargajiya. A cikin aikace-aikacen aikace-aikacen, ƙimar yawan samar da ƙwayoyin TOPCon ya wuce 25%, tare da yuwuwar ƙarin haɓakawa.

3. Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙwara: N-type silicon wafers suna da ƙananan lalacewa mai haifar da haske, ma'ana cewa samfurori na TOPCon na iya kula da aikin farko mafi girma a cikin ainihin amfani, rage asarar aiki a cikin dogon lokaci.

4. Ingantattun Yanayin Zazzabi: Matsakaicin zafin jiki na TOPCon modules ya fi na PERC modules, wanda ke nufin cewa a cikin yanayin zafi mai zafi, asarar wutar lantarki na TOPCon modules ya fi ƙanƙanta, musamman a wurare masu zafi da hamada inda wannan fa'ida ta bayyana.

5. karfinsu: Fasahar TOPCon na iya dacewa da layukan samar da PERC na yanzu, yana buƙatar ƙarin ƙarin na'urori kaɗan kawai, irin su watsawar boron da na'ura mai ɗaukar hoto na bakin ciki, ba tare da buƙatar buɗewa ta baya da daidaitawa ba, sauƙaƙe tsarin samarwa.

samar da tsari

Tsarin samar da ƙwayoyin TOPCon ya ƙunshi matakai masu zuwa:

1. Silicon Wafer Shiri: Na farko, ana amfani da wafer siliki N-type azaman kayan tushe don tantanin halitta. Wafers nau'in N suna da mafi girman ƴan tsirarun dillalai na rayuwa da mafi ƙarancin amsa haske.

2. Oxide Layer Deposition: Ana ajiye silikon siliki mai kauri mai kauri a bayan wafer siliki. Kaurin wannan Layer silicon oxide yawanci yana tsakanin 1-2nm kuma shine mabuɗin samun lambar wucewa.

3. Doped Polycrystalline Silicon Deposition: Ana ajiye Layer polycrystalline silicon Layer akan Layer oxide. Za'a iya samun wannan Layer silicon Layer ta hanyar ƙaramin matsi na tururin tururi mai ƙarfi (LPCVD) ko fasahar haɓaka sinadarai mai haɓaka sinadarai (PECVD).

4. Maganin Annealing: Ana amfani da jiyya mai zafi mai zafi don canza crystallinity na polycrystalline silicon Layer, don haka kunna aikin wucewa. Wannan mataki yana da mahimmanci don samun nasarar sake haɗawa da ƙananan mu'amala da ingantaccen ingancin tantanin halitta.

5. Karfe: An kafa layin grid na ƙarfe da wuraren tuntuɓar a gaba da bayan tantanin halitta don tattara masu ɗaukar hoto. Tsarin ƙarfe na sel TOPCon yana buƙatar kulawa ta musamman don guje wa lalata tsarin sadarwar wucewa.

6. Gwaji da Rarraba: Bayan an gama kera tantanin halitta, ana gudanar da gwaje-gwajen aikin lantarki don tabbatar da cewa sel sun cika ƙayyadaddun ƙayyadaddun ƙayyadaddun ayyuka. Sa'an nan kuma ana jerawa sel bisa ga sigogin aiki don biyan bukatun kasuwanni daban-daban.

7. Module Majalisar: An tattara ƙwayoyin sel a cikin kayayyaki, yawanci an rufe su da kayan kamar gilashi, EVA (ethylene-vinyl acetate copolymer), da kuma bayanan baya don kare sel da samar da tallafi na tsari.

Fa'idodi da kalubale

Abubuwan da ake amfani da su na fasahar TOPCon sun kasance a cikin babban inganci, ƙananan LID, da kuma kyakkyawan yanayin zafi, duk abin da ke sa kayan aikin TOPCon ya fi dacewa kuma suna da tsawon rayuwa a ainihin aikace-aikace. Koyaya, fasahar TOPCon kuma tana fuskantar ƙalubalen farashi, musamman dangane da saka hannun jari na kayan aiki na farko da farashin samarwa. Tare da ci gaba da ci gaban fasaha da rage farashi, ana tsammanin farashin ƙwayoyin TOPCon zai ragu sannu a hankali, yana haɓaka gasa a cikin kasuwar hotovoltaic.

A taƙaice, fasahar TOPCon ita ce muhimmiyar jagora ga ci gaban masana'antar photovoltaic. Yana inganta ingantaccen juzu'i na sel na hasken rana ta hanyar haɓakar fasaha yayin kiyaye daidaituwa tare da layin samarwa na yanzu, yana ba da tallafin fasaha mai ƙarfi don ci gaba mai dorewa na masana'antar hotovoltaic. Tare da ci gaba da ci gaban fasaha da raguwar farashi, ana sa ran na'urorin daukar hoto na TOPCon za su mamaye kasuwar hotovoltaic a nan gaba.