Ngokusho kwenethiwekhi yenhlangano ye-physicists isanda kubika ukuthi abacwaningi baseFinland baye bahlakulela i-silicon photodetector emnyama ene-quantum yangaphandle ye-130%, okungokokuqala ngqa ukuthi ukusebenza kahle kwamadivayisi we-photovoltaic kudlula umkhawulo wethiyori we-100%, okulindeleke ukuthi kuthuthukiswe kakhulu ukusebenza kahle kwamadivayisi okubona ugesi we-photoelectric, futhi lawa madivaysi asetshenziswa kabanzi emishinini yezokwelapha, amawashi ezimoto, amawashi ezimoto.
I-photodetector iyinzwa ekwazi ukukala ukukhanya noma amanye amandla kagesi, iguqule ama-photon ibe amandla kagesi, futhi ama-photon amunnyiwe akhe amapheya e-electron-hole. I-photodetector ihlanganisa i-photodiode ne-phototransistor, njll. Ukusebenza kahle kwe-Quantum kusetshenziselwa ukuchaza iphesenti lama-photons atholwe idivayisi efana nesithwebuli sezithombe zibe ipheya ye-electron-hole, okungukuthi, ukusebenza kahle kwe-quantum kuyalingana nenani lama-electron akhiqiziwe ahlukaniswe ngenombolo yezithombe zesigameko.
Lapho i-photon yesigameko ikhiqiza i-electron kusekethe yangaphandle, ukusebenza kahle kwe-quantum yangaphandle kwedivayisi kungu-100% (okwakucatshangwa ngaphambilini njengomkhawulo wetiyori). Ocwaningweni lwakamuva, i-silicon photodetector emnyama ibe nokusebenza kahle okungafika kumaphesenti ayi-130, okusho ukuthi isigameko esisodwa se-photon sikhiqiza ama-electron angu-1.3.
Ngokusho kwabacwaningi baseNyuvesi yase-Aalto, isikhali esiyimfihlo ngemuva kwalokhu kuphumelela okukhulu inqubo yokuphindaphinda isithwali etholakala ngaphakathi kwesakhiwo esiyingqayizivele se-silicon photodetector emnyama, eqalwa ama-photon anamandla amakhulu. Ngaphambilini, ososayensi bebengakwazi ukubona lesi sigameko emishinini yangempela ngoba ukuba khona kokulahlekelwa kagesi nokubona kunciphise inani lama-electron aqoqwe. "Imishini yethu ye-nanostructured ayinakho ukuphinda ihlanganiswe futhi ayinakho ukulahlekelwa kokubonisa, ngakho-ke singakwazi ukuqoqa zonke izithwali zokushaja eziphindaphindiwe," kuchaza umholi wocwaningo uSolwazi Hera Severn.
Lokhu kusebenza kahle kuqinisekiswe yi-Institute of Physical Technology ye-German National Metrology Society (PTB), okuyisevisi yokulinganisa enembe kakhulu nethembekile eYurophu.
Abacwaningi baphawula ukuthi lokhu kusebenza kahle kwerekhodi kusho ukuthi ososayensi bangathuthukisa kakhulu ukusebenza kwamadivayisi okubona i-photoelectric.
"Izithonjana zethu zenze isithakazelo esikhulu, ikakhulukazi emikhakheni ye-biotechnology kanye nokuqapha inqubo yezimboni," kusho uDkt. Mikko Juntuna, i-CEO ye-ElfysInc, inkampani ye-Aalto University. Kubikwa sebeqalile ukwenza imitshina enjalo ukuze bayisebenzisele ukuthengisa.
Isikhathi sokuthumela: Jul-11-2023