Kwicandelo elitshintsha ngokukhawuleza lobuchwepheshe be-photovoltaic, i-HJT (Heterojunction) kunye ne-TOPCon (Tunnel Oxide Passivated Contact) ziye zaba ziindawo eziphambili kushishino. Nangona kunjalo, ngokuqaliswa kwezinto ze-perovskite, i-HJT edityaniswe ne-perovskite ifumana ingqalelo ngenxa yeenzuzo zayo ezikhethekileyo, iba ngumxholo oshushu kushishino lwelanga. Eli nqaku liphonononga iingenelo ze-HJT edityaniswe ne-perovskite ngaphezu kwe-TOPCon kunye nendlela olu dibaniso oluyila ngayo ikamva lobuchwepheshe be-photovoltaic.
1. Intshayelelo kwiTekhnoloji ye-HJT
I-HJT yaziwa ngokusebenza kwayo okuphezulu kokuguqula i-photoelectric kunye nokusebenza kwayo okugqwesileyo kwiimeko eziphantsi kokukhanya. Yenza i-heterojunction ngokubeka ifilimu encinci ye-silicon engaguqukiyo kwi-crystalline silicon substrate, inciphisa ukuphinda-phinda komphezulu kwaye iphucula i-open-circuit voltage yeseli kunye nomsinga we-short-circuit.
2. Imingeni ngeTekhnoloji yeTOPCon
I-TOPCon ifezekisa ukudluliswa komphezulu ngokusebenzisa umaleko we-oxide kunye nomaleko we-polycrystalline silicon kumphezulu weseli, nto leyo enciphisa ilahleko zokuphinda kuhlanganiswe. Nangona kunjalo, ukufikelela ekusebenzeni okuphezulu nge-TOPCon kujongene nemingeni, kuquka iinkqubo ezinzima, ulawulo lweendleko, kunye nobunzima bokuphucula ukusebenza ngakumbi.
3. Indima yeZixhobo zePerovskite
Izixhobo zePerovskite zilungele ukukhulisa ukusebenza kakuhle kweeseli zelanga ngenxa yokulingana kwazo okuphezulu kokufunxa, isithuba sebhendi esinokuhlengahlengiswa, kunye nohlobo lokucutshungulwa kwesisombululo. Ngokudibanisa i-perovskite netekhnoloji ye-HJT, kunokwenzeka ukusebenzisa ukusebenza okuphezulu kwe-HJT kunye nokuyiphucula ngakumbi ngeempawu zokufunxa ezibanzi ze-perovskite.
4. Iingenelo ze-HJT ezidityaniswe nePerovskite
a. Ukusebenza kakuhle kokuguqula i-Photoelectric:Ukongezwa kwe-perovskite kwandisa kakhulu impendulo ye-spectral yeeseli ze-HJT, kwandisa inani labathwali abaveliswa yifoto. Iiseli ze-HJT, ezinomda wokusebenza kakuhle wethiyori we-27.5%, sele zigqithile ubuchwepheshe be-PV bendabuko. Ulwakhiwo lwe-heterojunction, olutshintshanayo kunye nolwe-crystalline silicon layers, lukhulisa ukufunxwa kokukhanya, luphucula ukusebenza kakuhle kokuguqulwa kwamandla.
b. Uzinzo olungcono:Iiseli ze-HJT aziboneleli nje kuphela ngokusebenza okuphezulu kodwa zikwanozinzo oluphezulu. Ulwakhiwo lwe-tandem ye-HJT-perovskite lugcina ukusebenza okuphezulu phantsi kokusebenza kwexesha elide, ngokungafaniyo ne-TOPCon-perovskite, ethi, nangona iindleko zemveliso ziphantsi, isokole ukulingana ne-HJT ngokubhekiselele ekusebenzeni kakuhle.
c. Inkqubo Yokuvelisa Elula:Indlela ezisebenza ngayo izinto ze-perovskite inciphisa iindleko zokuvelisa, nto leyo ebaluleke kakhulu ekunciphiseni iindleko zombane ezilinganisiweyo (LCOE). Iiseli ze-HJT nazo zinenzuzo yokuvelisa, zisebenzisa i-low-temperature chemical vapor deposition (CVD) ukufaka iileya ze-silicon ezi-amorphous, kulandele iileya ze-transparent conductive oxide (TCO) kunye neeleya ze-silicon ezi-amorphous ze-p-type okanye i-n-type. Le nkqubo ilula inciphisa iindleko kwaye iphucula amazinga esivuno xa kuthelekiswa nenkqubo ye-TOPCon yokunyusa ubushushu obuphezulu, eyonyusa iindleko zemveliso kunye nokuguquguquka komgangatho.
d. Imveliso Enobuhlobo Nokusingqongileyo:Izinto zePerovskite zibonelela ngenkqubo yokuvelisa enobuhlobo nokusingqongileyo njengoko zingabandakanyi izinto ezinobuthi okanye ezinqabileyo. Ngokungafaniyo nezinye izinto zePV ezifuna izinto ezinobungozi ezifana ne-lead okanye i-cadmium, ii-perovskites azinazo ezo buthi, nto leyo enciphisa iingozi zokusingqongileyo kunye nempilo. Ngaphezu koko, ii-perovskites azixhomekekanga kwizinto ezinqabileyo, ezikhutshwa kuzo ezinokonakalisa okusingqongileyo. Imveliso yazo idla amandla amancinci, nto leyo ekhokelela ekunciphiseni ukukhutshwa kwekhabhoni.
Ukuqukumbela, indibaniselwano ye-HJT kunye ne-perovskite imele ulwalathiso oluthembisayo lokuqhubela phambili kwe-photovoltaic kwixesha elizayo, kunye neenzuzo zayo ekusebenzeni kakuhle, uzinzo, ukusebenza kakuhle kweendleko, kunye nokuzinza kokusingqongileyo okugqitha i-TOPCon kwiinkalo ezininzi.
