Kafukufuku wokhudza kuyimitsidwa kwa ma cell a N-mtundu wa TOPCon
- kusinthidwa: 2023-05-14
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ooitech
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M'zaka zaposachedwa, ndi chitukuko ndi kugwiritsa ntchito matekinoloje atsopano, njira zatsopano ndi mapangidwe atsopano a maselo a photovoltaic, mafakitale a photovoltaic cell akukula mofulumira. Monga ukadaulo wofunikira womwe umathandizira kukulitsa mphamvu zatsopano ndi ma gridi anzeru, ma cell amtundu wa n akhala malo otentha kwambiri pakukula kwa mafakitale padziko lonse lapansi.
Chifukwa n-mtundu tunneling okusayidi wosanjikiza passivation kukhudzana photovoltaic selo (pano amatchedwa "n-mtundu TOPCon selo") ali ndi ntchito mwayi kwambiri bwino bwino poyerekeza ndi ochiritsira photovoltaic maselo, ndi kuwonjezeka mtengo controllable ndi okhwima zida kusintha, selo la n-mtundu wa TOPCon Kukula kwina kwa mphamvu zopanga zapakhomo kwakhala njira yayikulu yopangira ma cell a photovoltaic apamwamba kwambiri.
Kuyimitsidwa kwa mabatire amtundu wa n-TOPCon kumakumana ndi zovuta monga kulephera kubisa zomwe zilipo komanso kufunikira kokonzanso magwiridwe antchito a miyezo. Pepalali lipanga kafukufuku ndikuwunika momwe mabatire amtundu wa n-TOPCon akuyendera, ndikupereka malingaliro oyimira.Chitukuko chaukadaulo wa n-mtundu wa TOPCon cellMapangidwe a p-mtundu wa silicon base ogwiritsidwa ntchito m'maselo wamba a photovoltaic ndi n + pp +, malo olandila kuwala ndi n + pamwamba, ndipo kufalikira kwa phosphorous kumagwiritsidwa ntchito kupanga emitter.Pali mitundu iwiri ikuluikulu ya ma homojunction photovoltaic cell structures for n-type silicon base materials, imodzi ndi n+np+, ndipo ina ndi p+nn+.Poyerekeza ndi silicon yamtundu wa p, silicon yamtundu wa n imakhala ndi moyo wabwinoko wonyamula anthu ochepa, kuchepetsa kutsika, komanso kuthekera kokulirapo.Selo ya n-mtundu wapawiri yopangidwa ndi silicon yamtundu wa n ili ndi ubwino wochita bwino kwambiri, kuyankhidwa kwabwino kochepa, kutentha kwapakati, ndi mphamvu zowonjezera ziwiri.Pamene zofunikira zamakampani pakupanga ma photoelectric kutembenuka kwa ma cell a photovoltaic zikuchulukirachulukira, ma cell a photovoltaic amtundu wa n-mtundu wapamwamba kwambiri monga TOPCon, HJT, ndi IBC atenga msika wamtsogolo pang'onopang'ono.Malinga ndi 2021 International Photovoltaic Roadmap (ITRPV) yapadziko lonse lapansi ukadaulo wamakampani opanga ma photovoltaic komanso kulosera zamsika, ma cell amtundu wa n amayimira ukadaulo wamtsogolo komanso kakulidwe ka msika wama cell a photovoltaic kunyumba ndi kunja.Mwa njira zamakono zamitundu itatu ya mabatire amtundu wa n, mabatire amtundu wa n-TOPCon akhala njira yaukadaulo yokhala ndi sikelo yayikulu kwambiri yamafakitale chifukwa chaubwino wawo wogwiritsa ntchito zida zomwe zidalipo komanso kutembenuka kwakukulu.
Pakalipano, mabatire amtundu wa n-TOPCon mumsika nthawi zambiri amakonzedwa kutengera luso la LPCVD (low-pressure vapor-phase chemical deposition), lomwe lili ndi njira zambiri, zogwira mtima ndi zokolola zimaletsedwa, ndipo zipangizo zimadalira zogulitsa kunja. Iyenera kuwongoleredwa. Kupanga kwakukulu kwa ma cell amtundu wa n-TOPCon kumakumana ndi zovuta zaukadaulo monga kukwera mtengo kopanga, njira zovuta, zokolola zochepa, komanso kusasinthika kosakwanira.Makampaniwa ayesa zambiri kukonza ukadaulo wa ma cell amtundu wa TOPCon. Pakati pawo, in-situ doped polysilicon wosanjikiza ukadaulo umagwiritsidwa ntchito limodzi-ndondomeko mafunsidwe a tunneling okusayidi wosanjikiza ndi doped polysilicon (n+-polySi) wosanjikiza popanda kuzimata plating;Electrode yachitsulo ya n-mtundu wa TOPCon batire imakonzedwa pogwiritsa ntchito ukadaulo watsopano wosakaniza phala la aluminiyamu ndi phala la siliva, zomwe zimachepetsa mtengo ndikuwongolera kukana kukhudzana; utenga kutsogolo kusankha emitter kapangidwe ndi kumbuyo Mipikisano wosanjikiza tunneling passivation kukhudzana kapangidwe luso.Kukweza kwaukadaulo uku komanso kukhathamiritsa kwa njira kwathandizira pakukula kwa ma cell amtundu wa n-TOPCon.Kafukufuku wokhazikika wa n-mtundu wa TOPCon batirePali kusiyana kwaukadaulo pakati pa maselo amtundu wa TOPCon ndi ma cell ochiritsira a p-mtundu wa photovoltaic, ndipo chigamulo cha ma cell a photovoltaic pamsika chimachokera pamiyezo wamba wamba ya batri, ndipo palibe chofunikira chodziwikiratu cha maselo amtundu wa n-mtundu wa photovoltaic. .Selo ya n-mtundu wa TOPCon ili ndi makhalidwe otsika kwambiri, kutentha kwapakati, kutentha kwapamwamba, kuthamanga kwapamwamba kwambiri, kuthamanga kwapamwamba kwambiri, ndi zina zotero. Zimasiyana ndi maselo ochiritsira a photovoltaic malinga ndi miyezo.
Gawoli liyambira pakutsimikiza kwa zisonyezo zamtundu wa n-mtundu wa TOPCon batire, chitani zotsimikizira zofananira kuzungulira kupindika, kulimba kwa ma elekitirodi, kudalirika, ndi magwiridwe antchito oyambilira opangitsa kuwala, ndikukambirana zotsatira zotsimikizira.Kutsimikiza kwa zizindikiro zokhazikikaMa cell ochiritsira a photovoltaic amachokera ku muyezo wa GB/T29195-2012 wa "General Specifications for Ground-Wosed Crystalline Silicon Solar Cells", zomwe zimafuna momveka bwino magawo a ma cell a photovoltaic.Kutengera zofunikira za GB/T29195-2012, kuphatikiza ndi luso la mabatire amtundu wa TOPCon n-mtundu, kusanthula kunachitika chinthu ndi chinthu.Onani Table 1, mabatire amtundu wa n-TOPCon ali ofanana ndi mabatire wamba malinga ndi kukula ndi mawonekedwe;
Table 1 Kuyerekeza pakati pa n-mtundu TOPCon batire ndi GB/T29195-2012 zofunika
Pankhani ya magawo amagetsi amagetsi ndi kutentha kokwanira, mayeso amayesedwa molingana ndi IEC60904-1 ndi IEC61853-2, ndipo njira zoyesera zimagwirizana ndi mabatire wamba; zofunikira zamakina zimasiyana ndi mabatire wamba potengera digiri yopindika ndi mphamvu yama elekitirodi.Kuonjezera apo, malingana ndi malo enieni ogwiritsira ntchito mankhwalawa, kuyesa kutentha kwachinyontho kumawonjezedwa ngati chofunikira chodalirika.Kutengera kusanthula pamwambapa, zoyeserera zidachitika kuti zitsimikizire mawonekedwe amakina ndi kudalirika kwa mabatire amtundu wa n-TOPCon.Ma cell a Photovoltaic ochokera kwa opanga osiyanasiyana omwe ali ndi njira yofananira yaukadaulo adasankhidwa ngati zitsanzo zoyesera. Zitsanzozi zidaperekedwa ndi Taizhou Jolywood Optoelectronics Technology Co., Ltd.Kuyeseraku kunachitika m'ma laboratories a chipani chachitatu ndi ma labotale abizinesi, ndipo magawo monga kupindika digirii ndi mphamvu yamagetsi yamagetsi, kuyeserera kwa kutentha kwapang'onopang'ono komanso kuyesa kwa kutentha konyowa, komanso kuyeserera koyambilira koyambitsa kuwala kunayesedwa ndikutsimikiziridwa.Kutsimikizika kwa Ma Mechanical Properties a Photovoltaic CellsDigiri yopindika ndi mphamvu yamagetsi yama electrode mumakina a mabatire amtundu wa TOPCon amayesedwa mwachindunji pa pepala lokhalokha, ndipo kutsimikizika kwa njira yoyesera ndi motere.Kupindika kumatanthawuza kupatuka pakati pa malo apakati apakati pa sampuli yoyesedwa ndi ndege yolozera yapakatikati. Ndichizindikiro chofunikira chowunika kukhazikika kwa batri pansi pa kupsinjika poyesa kupindika kwa cell ya photovoltaic.Njira yake yayikulu yoyesera ndikuyesa mtunda kuchokera pakatikati pa chophatikizira kupita ku ndege yolozera pogwiritsa ntchito chizindikiro chotsika.Jolywood Optoelectronics ndi Xi'an State Power Investment anapereka zidutswa 20 za mabatire amtundu wa M10 wamtundu wa TOPCon aliyense. Kutsetsereka kwa pamwamba kunali bwino kuposa 0.01mm, ndipo kupindika kwa batire kunayesedwa ndi chida choyezera chokhala ndi lingaliro labwino kuposa 0.01mm.Mayeso opindika batire amachitika molingana ndi zomwe 4.2.1 mu GB/T29195-2012.Zotsatira za mayeso zikuwonetsedwa mu Table 2.
Table 2 Zotsatira zopindika zamaselo amtundu wa n-TOPCon
Miyezo yoyang'anira mabizinesi a Jolywood ndi Xi'an State Power Investment onse amafunikira kuti digiri yopindika ikhale yosaposa 0.1mm. Malinga ndi kuwunika kwa zotsatira zoyeserera, ma degree opindika a Jolywood Optoelectronics ndi Xi'an State Power Investment ndi 0.056mm ndi 0.053mm motsatana. Makhalidwe apamwamba ndi 0.08mm ndi 0.10mm, motero.Malinga ndi zotsatira za kutsimikizira mayeso, kufunikira kokhota kwa batire yamtundu wa n-TOPCon sikukwera kuposa 0.1mm.Kutsimikizira kwamphamvu kwa Electrode tensileRiboni yachitsulo imalumikizidwa ndi waya wa gridi ya cell ya photovoltaic powotcherera kuti ipange pakali pano. Riboni yogulitsira ndi ma elekitirodi ziyenera kulumikizidwa mokhazikika kuti muchepetse kukana ndikuwonetsetsa kuti magwiridwe antchito apano akuyenda bwino.Pazifukwa izi, kuyesa kwamphamvu kwamagetsi pamagetsi pa waya wa batri kumatha kuwunika momwe batire imawotchera komanso kutenthetsa kwa batire, yomwe ndi njira yodziwika bwino yoyesera mphamvu yomatira ya batire ya photovoltaic.<section style="margin: 0px 0px 16px;padding: 0px;outline
