Mu makampani opanga ma solar photovoltaic (PV) omwe akusintha mofulumira, kulondola ndi kupanga zinthu zatsopano ndizofunikira kwambiri pakukweza kugwiritsa ntchito mphamvu moyenera. Pakati pa ngwazi zosayamikirika mu njirayi pali Solar Graphite Boat, gawo lapadera lopangidwira kupanga ma semiconductor otentha kwambiri. Yopangidwa ndi VET Energy, kampani yotsogola yopanga zinthu zapamwamba, ma graphite awa amachita gawo lofunikira kwambiri popanga ma solar cell ogwira ntchito kwambiri. Tiyeni tiwone momwe amagwiritsidwira ntchito, mawonekedwe ake, komanso chifukwa chake ndi ofunikira kwambiri muukadaulo wamakono wa solar.
Kodi Boti la Graphite la Solar ndi chiyani?
Boti la Solar Graphite ndi chonyamulira chomwe chimagwiritsidwa ntchito mu Plasma Enhanced Chemical Vapor Deposition (PECVD), gawo lofunika kwambiri popanga maselo a dzuwa. Limasunga bwino mawafa a silicon panthawi yoyika mafilimu opyapyala, monga zophimba zotsutsana ndi kuwala ndi zigawo zodutsa mpweya, zomwe ndizofunikira kwambiri kuti kuwala kulowe komanso kuchepetsa kutayika kwa mphamvu m'maselo a dzuwa.
Kampani ya VET EnergyMaboti a graphite a PECVDZapangidwa kuti zipirire mikhalidwe yovuta kwambiri pamene zikutsimikizira kuti zimagwirizana komanso kudalirika. Kapangidwe kake kamakhudza mwachindunji mtundu wa mafilimu omwe asungidwa, zomwe zimatsimikizira kugwira ntchito bwino komanso kulimba kwa chinthu chomaliza cha dzuwa.
Ntchito Zofunika Kwambiri Pakupanga Ma Solar PV
1. Kuyika kwa Chophimba Chosawunikira
Maselo a dzuwa amadalira zophimba zoletsa kuwala kuti achepetse kuwala ndikuwonjezera kuyamwa kwa photon. Boti la graphite limaonetsetsa kuti ma wafer a silicon amakumana ndi mpweya woipa panthawi ya PECVD, zomwe zimapangitsa kuti kuwala kukhale kofanana.
2. Kusuntha kwa pamwamba
Ma layer a Passivation (monga silicon nitride) amagwiritsidwa ntchito kuchepetsa zolakwika pamwamba ndi kutayika kwa recombination. Maboti a VET Energy amasunga kuwongolera kutentha bwino komanso kugawa mpweya, zomwe ndizofunikira kwambiri popanga ma layer a Passivation opanda zolakwika zomwe zimawonjezera moyo wautali wa maselo.
3. Kupanga Kwambiri
Maboti amenewa, omwe adapangidwa kuti agwirizane ndi makina a PECVD a mafakitale, amathandizira kukonza mwachangu ma wafer angapo nthawi imodzi, zomwe zimapangitsa kuti pakhale bwino kupanga ma solar panel akuluakulu.
Makhalidwe Abwino Kwambiri a Maboti a Graphite a VET Energy
Kugwira ntchito kwa bwato la graphite kumadalira pa kapangidwe kake. VET Energy imaphatikiza uinjiniya wapamwamba wa graphite ndi zokutira zapadera kuti ipereke:
1. Kukhazikika Kwambiri kwa Kutentha
- Kutentha kwa ntchito mu PECVD nthawi zambiri kumapitirira 1,200°C. Mabotiwa amasunga mawonekedwe ake ndipo amachepetsa kukula kwa kutentha, kuonetsetsa kuti ma wafer akugwirizana bwino ngakhale kutentha/kuzizira mwachangu.
- Kutentha kwambiri (23 W/m·K) kumatsimikizira kufalikira kwa kutentha kofanana, kuteteza malo otentha omwe angawononge ma wafer.
2. Kukana Mankhwala
- Imalimbana ndi mpweya wowononga monga NH₃ ndi SiH₄, zomwe zimapezeka kwambiri mu njira za PECVD. Izi zimawonjezera nthawi ya moyo wa bwato ndikuchepetsa zoopsa za kuipitsidwa.
3. Kapangidwe Koyenera ka Kuyenda kwa Mpweya
- Mapangidwe a eni ake amatsimikizira kuti mpweya umayenda mofanana pa ma wafer onse, zomwe ndizofunikira kwambiri kuti filimu ikhale yolimba komanso yofanana. Izi zikutanthauza kuti maselo a dzuwa amagwira ntchito bwino kwambiri.
4. Moyo Wautali wa Utumiki
- Zophimba zapamwamba za CVD (monga silicon carbide kapena tantalum carbide) zimathandizira kulimba. Mwachitsanzo, zida za VET Energy's TaC-coated zimapirira kutentha kopitilira 2,500°C ndipo zimalimbana ndi dzimbiri lachitsulo chosungunuka, zomwe zimapangitsa kuti moyo ukhale wautali katatu poyerekeza ndi zipangizo wamba.
5. Kutha Kusintha Zinthu Mwamakonda
- Miyeso ndi zokutira zomwe zakonzedwa kuti zigwirizane ndi zida zinazake (monga kukula kwa wafer kuyambira mainchesi 4 mpaka mainchesi 12) ndi zofunikira pa njira, kuonetsetsa kuti zikugwirizana bwino ndi mizere yopangira yomwe ilipo.
Boti la graphitemotsutsana ndibwato la quartz
Kukana kutentha kwambiri
- Maboti a Graphite amatha kupirira kutentha kwambiri kwa 1,200°C ~ 2,500°C, ndipo amakhala ndi kutentha kochepa komwe kumawonjezera kutentha mkati mwa izi (mwachitsanzo, kutentha komwe kumawonjezera kutentha kwa zinthu za VET Energy ndi 4.8×10⁻⁶/°C), zomwe zimatha kusunga kukhazikika kwa kapangidwe kake komanso kulondola kwa ma wafer. Mosiyana ndi zimenezi, kutentha kwapamwamba kwa maboti a quartz nthawi zambiri kumakhala 1,200°C, ndipo kugwiritsa ntchito kutentha kwa nthawi yayitali kungayambitse kusintha kapena ming'alu.
Kutentha kwabwino kwambiri komanso kufanana kwake
- Mphamvu ya kutentha ya graphite (pafupifupi 23 W/m·K) ndi yayikulu kwambiri kuposa ya quartz (pafupifupi 1.4 W/m·K), kotero mu njira monga PECVD (plasma enhanced chemical vapor deposition), maboti a graphite amatha kukwaniritsa kufalikira kwa kutentha kofanana, kuchepetsa kusiyana kwa makulidwe a filimu ya wafer, ndikukweza mtundu wa passivation layer ya maselo a dzuwa.
Kukana mwamphamvu ku dzimbiri la mankhwala
- Maboti a grafiti ali ndi kupirira kwakukulu ku mpweya wowononga monga NH₃ (ammonia) ndi SiH₄ (silane), ndipo ndi oyenera njira zomwe zimafuna kuwonetsedwa pafupipafupi ku mpweya wochitapo kanthu (monga tubular PERC cell coating). Kuphatikiza apo, popaka pamwamba ndi silicon carbide (SiC) kapena tantalum carbide (TaC), moyo wautumiki ukhoza kukulitsidwa (mwachitsanzo, chophimba cha VET Energy cha TaC chimatha kupirira kutentha kwa 2,500°C).
Ndalama komanso moyo wautali
- Maboti a graphite ndi olimba kwambiri ndipo amatha kugwiritsidwanso ntchito kambirimbiri pamakina opangira mafakitale, ndipo ndalama zokonzera ndi zochepa kuposa za maboti a quartz. Mwachitsanzo, maboti a graphite opangidwa mwamakonda a VET Energy amatha kuthandiza zosowa zazikulu zopangira ma wafer a mainchesi 4 ~ 12 kudzera mu kapangidwe kabwino, kuchepetsa mtengo wa njira iliyonse ya wafer.
Chifukwa ChosankhaMphamvu ya VET?
VET Energy imadziwika bwino kwambiri m'gulu la zipangizo zamakono chifukwa cha:
- Ukatswiri wa Kafukufuku ndi Kupititsa Patsogolo: Gulu laukadaulo lochokera m'mabungwe apamwamba ofufuza, kuphatikizapo Chinese Academy of Sciences, limayambitsa zatsopano mu sayansi ya zinthu.
- Chitsimikizo cha Ubwino: Machitidwe okhwima owongolera khalidwe ndi ukadaulo wopaka utoto wokhala ndi patent (monga, zigawo za CVD zomangiriridwa mwamphamvu) zimaonetsetsa kuti zinthuzo ndi zodalirika.
- Yankho Lachangu: Mayankho opangidwa mwamakonda ndi nthawi yotumizira mwachangu (monga masiku 15 a maoda osakwana mayunitsi 1,000) amachepetsa nthawi yopuma kwa opanga.
- Kuzindikirika kwa Makasitomala: Pambuyo pa zaka zambiri za mvula ndi kusonkhanitsa kwaukadaulo, bwato la graphite la VET Energy la mphamvu ya dzuwa latumizidwa kumayiko ndi madera opitilira 100, ndipo gawo lake pamsika ku Europe ndi United States ndi lalikulu mpaka 70%, zomwe zapambana kutamandidwa kwambiri komanso kutamandidwa ndi makasitomala ambiri. Ndi chisankho chanu chabwino kwambiri.
Nthawi yotumizira: Epulo-22-2025