Ngokusho kwenethiwekhi yenhlangano ye-physics muva nje ibike ukuthi abacwaningi baseFinland bathuthukise i-black silicon photodetector enekhono langaphandle le-quantum elingu-130%, okungokokuqala ukuthi ukusebenza kahle kwamadivayisi e-photovoltaic kudlule umkhawulo wethiyori ongu-100%, okulindeleke ukuthi kuthuthukise kakhulu ukusebenza kahle kwamadivayisi okuthola i-photoelectric, futhi la madivayisi asetshenziswa kabanzi ezimotweni, omakhalekhukhwini, amawashi ahlakaniphile kanye nemishini yezokwelapha.
I-photodetector iyinzwa engakwazi ukukala ukukhanya noma amanye amandla kagesi, iguqule ama-photon abe ugesi, bese ama-photon adonswayo akha ama-electron-hole pair. I-photodetector ifaka i-photodiode kanye ne-phototransistor, njll. Ukusebenza kahle kwe-Quantum kusetshenziselwa ukuchaza iphesenti lama-photon atholwe yidivayisi efana ne-photodetector ibe yi-electron-hole pair, okungukuthi, ukusebenza kahle kwe-quantum kulingana nenani lama-electron akhiqizwa yi-photon ahlukaniswe ngenani lama-photon athintekile.
Uma i-photon yesigameko ikhiqiza i-electron kwisekethe yangaphandle, ukusebenza kahle kwe-quantum yangaphandle kwedivayisi kungu-100% (ngaphambilini okwakucatshangwa ukuthi umkhawulo wethiyori). Ocwaningweni lwakamuva, i-black silicon photodetector yayisebenza kahle ngamaphesenti afinyelela ku-130, okusho ukuthi i-photon eyodwa yesigameko ikhiqiza cishe ama-electron angu-1.3.
Ngokusho kwabacwaningi base-Aalto University, isikhali esiyimfihlo salolu shintsho olukhulu inqubo yokuphindaphinda kwe-charge-carrier eyenzeka ngaphakathi kwe-nanostructure eyingqayizivele ye-black silicon photodetector, ebangelwa ama-photon anamandla aphezulu. Ngaphambilini, ososayensi babengakwazi ukubona lesi simo kumadivayisi angempela ngoba ukuba khona kokulahlekelwa kukagesi nokukhanya kunciphisa inani lama-electron aqoqwe. "Amadivayisi ethu e-nanostructure awanayo i-recombination futhi awanayo i-reflection loss, ngakho-ke singaqoqa wonke ama-charge carrier aphindaphindiwe," kuchaza umholi wocwaningo uSolwazi Hera Severn.
Lokhu kusebenza kahle kuqinisekiswe yi-Institute of Physical Technology ye-German National Metrology Society (PTB), okuyisevisi yokulinganisa enembile nethembekile kunazo zonke eYurophu.
Abacwaningi baphawula ukuthi lokhu kusebenza kahle kwamarekhodi kusho ukuthi ososayensi bangathuthukisa kakhulu ukusebenza kwamadivayisi okuthola i-photoelectric.
“Imishini yethu yokuhlola ivuse isithakazelo esikhulu, ikakhulukazi ezindaweni zobuchwepheshe bezinto eziphilayo kanye nokuqapha inqubo yezimboni,” kusho uDkt. Mikko Juntuna, i-CEO ye-ElfysInc, inkampani ephethwe yi-Aalto University. Kubikwa ukuthi sebeqalile ukukhiqiza imishini yokuhlola enjalo ukuze isetshenziswe kwezentengiselwano.
Isikhathi sokuthunyelwe: Julayi-11-2023