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 uphumelele kakhulu. ngcono ukusebenza kahle kwemishini yokubona ugesi wezithombe, futhi la madivayisi asetshenziswa kakhulu ezimotweni, omakhalekhukhwini, amawashi ahlakaniphile namathuluzi ezokwelapha.
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-photon atholwe idivayisi efana nesitholi sesithombe sibe yipheya ye-electron-hole, okungukuthi, ukusebenza kahle kwe-quantum kuyalingana nenani lama-electron akhiqizwa isithombe ahlukaniswe inani lamafotoni esigameko.
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 bayaqaphela 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