Ngokutsho kwenethiwekhi yentlangano ye-physicists kutshanje ingxelo yokuba abaphandi baseFinnish baye baphuhlisa i-silicon photodetector emnyama kunye ne-quantum yangaphandle ye-130%, okokuqala ngqa ukuba ukusebenza kakuhle kwezixhobo ze-photovoltaic kudlula umda wethiyori we-100%, okulindeleke ukuba kakhulu. ukuphucula ukusebenza kakuhle kwezixhobo zokubona umbane, kwaye ezi zixhobo zisetyenziswa kakhulu kwiimoto, iifowuni eziphathwayo, iiwotshi ezihlakaniphile kunye nezixhobo zonyango.
I-photodetector yinzwa enokulinganisa ukukhanya okanye amanye amandla e-electromagnetic, ukuguqula iifoton zibe ngumbane wangoku, kunye neefotoni ezifunxayo zenza izibini ze-electron-hole.I-photodetector ibandakanya i-photodiode kunye ne-phototransistor, njl njl. Ukusebenza kwe-quantum kusetyenziselwa ukuchaza ipesenti yeefotoni ezifunyenwe sisixhobo esifana ne-photodetector kwi-electron-hole pair, oko kukuthi, ukusebenza kakuhle kwe-quantum kuyalingana nenani leelektroni ezenziwe ngeefoto ezahlulwe ngo. inani leefotoni zesiganeko.
Xa i-photon yesiganeko ivelisa i-electron kwisekethe yangaphandle, ukusebenza kakuhle kwe-quantum yangaphandle kwesixhobo yi-100% (engaphambili kwakucingelwa ukuba ngumda wethiyori).Kuphononongo lwamva nje, i-silicon photodetector emnyama isebenze ngokufanelekileyo ukuya kuthi ga kwi-130 pesenti, okuthetha ukuba isiganeko esinye sefoton sivelisa malunga nee-electron ze-1.3.
Ngokwabaphandi beDyunivesithi yase-Aalto, isixhobo esiyimfihlo esisemva kolu hlaselo luphambili yinkqubo yokuphindaphinda intlawulo eyenzeka ngaphakathi kwe-nanostructure ekhethekileyo ye-silicon photodetector emnyama, ebangelwa ziifotoni zamandla aphezulu.Ngaphambili, izazinzulu azizange zikwazi ukujonga into eyenzekayo kwizixhobo zangempela ngenxa yokuba ubukho belahleko zombane kunye ne-optical zanciphisa inani leelektroni eziqokelelweyo."Izixhobo zethu ze-nanostructured azikho ukuphinda zidibanise kwaye azikho ilahleko yokubonisa, ngoko sinokuqokelela bonke abathwali beentlawulo eziphindaphindiweyo," kuchaza inkokeli yokufunda uProfesa uHera Severn.
Oku kusebenza kakuhle kuye kwaqinisekiswa yi-Institute of Physical Technology ye-German National Metrology Society (PTB), eyona nkonzo yokulinganisa echanekileyo nethembekileyo eYurophu.
Abaphandi bayaqaphela ukuba le rekhodi isebenzayo ithetha ukuba izazinzulu zinokuphucula kakhulu ukusebenza kwezixhobo zokubona i-photoelectric.
"Ii-detectors zethu zenze umdla omkhulu, ngakumbi kwiinkalo ze-biotechnology kunye nokubeka iliso kwinkqubo yoshishino," kusho uDkt Mikko Juntuna, i-CEO ye-ElfysInc, inkampani ye-Aalto University.Kuxelwe ukuba sele beqalisile ukuvelisa ezo zixhobo zisetyenziselwa urhwebo.
Ixesha lokuposa: Jul-11-2023