Emkhakheni oshintsha ngokushesha wobuchwepheshe be-photovoltaic, i-HJT (Heterojunction) kanye ne-TOPCon (Tunnel Oxide Passivated Contact) kube yizindawo ezigxile embonini. Kodwa-ke, ngokwethulwa kwezinto ze-perovskite, i-HJT ehlanganiswe ne-perovskite ithola ukunakwa ngezinzuzo zayo eziyingqayizivele, iba yisihloko esishisayo embonini yelanga. Lesi sihloko sihlola izinzuzo ze-HJT ehlanganiswe ne-perovskite kune-TOPCon nokuthi le nhlanganisela ibumba kanjani ikusasa lobuchwepheshe be-photovoltaic.
1. Isingeniso kubuchwepheshe be-HJT
I-HJT yaziwa ngokusebenza kwayo okuphezulu kokuguqulwa kwe-photoelectric kanye nokusebenza kwayo okuhle kakhulu ezimweni zokukhanya okuphansi. Yakha i-heterojunction ngokubeka ifilimu encane ye-silicon engaguquki ku-substrate ye-silicon ekristali, inciphisa ukuhlangana kabusha kwendawo futhi ithuthukise i-voltage ye-open-circuit yeseli kanye nomsinga we-short-circuit.
2. Izinselele nge-TOPCon Technology
I-TOPCon ifinyelela ukudlula kobuso ngokusebenzisa ungqimba lwe-oxide kanye nongqimba lwe-polycrystalline silicon ebusweni beseli, okunciphisa ukulahlekelwa kokuhlanganiswa kabusha. Kodwa-ke, ukufeza ukusebenza kahle okuphezulu nge-TOPCon kubhekene nezinselele, okuhlanganisa izinqubo eziyinkimbinkimbi, ukuphathwa kwezindleko, kanye nobunzima bokuthuthukiswa kokusebenza kahle okuqhubekayo.
3. Indima Yezinto Ezisetshenziswa ePerovskite
Izinto ze-Perovskite zilungele ukukhulisa ukusebenza kahle kwamaseli elanga ngenxa ye-coefficient yazo ephezulu yokumunca, igebe lebhendi elilungisekayo, kanye nesimo sokucutshungulwa kwesisombululo. Ngokuhlanganisa i-perovskite nobuchwepheshe be-HJT, kungenzeka ukusebenzisa ukusebenza kahle okuphezulu kwe-HJT futhi kuthuthukiswe ngokwengeziwe ngezakhiwo zokumunca ze-wide-spectrum ze-perovskite.
4. Izinzuzo ze-HJT Kuhlanganiswe ne-Perovskite
a. Ukusebenza Kahle Kokuguqulwa Kwe-Photoelectric Okuphezulu:Ukwengezwa kwe-perovskite kwandisa kakhulu impendulo ye-spectral yamaseli e-HJT, kwandisa inani labathwali abakhiqizwe ngesithombe. Amaseli e-HJT, anomkhawulo wokusebenza kahle kwethiyori ongu-27.5%, asevele edlula ubuchwepheshe be-PV bendabuko. Isakhiwo se-heterojunction, esishintshana ngezingqimba ze-silicon ezi-amorphous nezi-crystalline, senza kube ngcono ukumuncwa kokukhanya, sithuthukise ukusebenza kahle kokuguqulwa kwamandla.
b. Ukuzinza Okungcono:Amaseli e-HJT awagcini nje ngokunikeza ukusebenza kahle okuphezulu kodwa futhi nokuzinza okuphezulu. Isakhiwo se-tandem se-HJT-perovskite sigcina ukusebenza kahle okuphezulu ngaphansi kokusebenza kwesikhathi eside, ngokungafani ne-TOPCon-perovskite, okuthi, naphezu kwezindleko zokukhiqiza eziphansi, kube nzima ukulingana ne-HJT maqondana nokusebenza kahle.
c. Inqubo Yokukhiqiza Elula:Indlela izinto ze-perovskite ezicutshungulwa ngayo izixazululo yehlisa izindleko zokukhiqiza, okubalulekile ekunciphiseni izindleko zikagesi ezilinganisiwe (LCOE). Amaseli e-HJT nawo anenzuzo yokukhiqiza, esebenzisa i-low-temperature chemical vapor deposition (CVD) ukufaka izendlalelo ze-silicon ezi-amorphous, kulandelwe yi-transparent conductive oxide (TCO) kanye nezendlalelo ze-p-type noma ze-n-type amorphous silicon. Le nqubo elula inciphisa izindleko futhi ithuthukisa amazinga okukhiqiza uma kuqhathaniswa nenqubo ye-TOPCon yokushisa okuphezulu, ekhulisa izindleko zokukhiqiza kanye nokuguquguquka kwekhwalithi.
d. Ukukhiqizwa Okunobungani Nemvelo:Izinto ze-Perovskite zinikeza inqubo yokukhiqiza enobungani nemvelo njengoba zingabandakanyi izinto ezinobuthi noma ezingavamile. Ngokungafani nezinye izinto ze-PV ezidinga izinto eziyingozi njenge-lead noma i-cadmium, ama-perovskite awanazo izinto ezinjalo ezinobuthi, okunciphisa izingozi zemvelo nezempilo. Ngaphezu kwalokho, ama-perovskite awathembeli ezintweni ezingavamile, okukhishelwa kuzo okungalimaza imvelo. Ukukhiqizwa kwawo kudla amandla amancane, okuholela ekunciphiseni ukukhishwa kwekhabhoni.
Ekuphetheni, inhlanganisela ye-HJT ne-perovskite imelela isiqondiso esithembisayo sokuthuthuka kwe-photovoltaic yesikhathi esizayo, kanye nezinzuzo zayo ekusebenzeni kahle, ukuzinza, ukusebenza kahle kwezindleko, kanye nokusimama kwemvelo okudlula i-TOPCon ezicini eziningi.
