Black Silicon Photodetector Rekodhi: Kunze Quantum Kubudirira kusvika 132%

Dema siliconPhotomdetectorrekodhi: Kunze kwehuwandu hwekubudirira kusvika pa132%

Maererano neMedia Mishumo, vaongorori kuAalto University vakagadzira mudziyo weOptoelectronic neyekunze nhamba yekubudirira kweanosvika gumi nemaviri muzana. Izvi zvisingafungidziriki feat yakawanikwa nekushandisa nicostred silicon dema, iyo inogona kunge iri huru yeiyo solar maseru uye zvimwePhotodetectors. Kana iyo hypothetical photovoltaic mudziyo wekushanda kwehuwandu hwevanhu zana muzana, zvinoreva kuti Photon yega yega inoburitsa emagetsi, iyo inounganidzwa semagetsi kuburikidza nedunhu.

Uye iyi mudziyo mutsva hausi kungobudirira zana muzana, asi zvinopfuura zana muzana. 132% zvinoreva avhareji ye1.32 Electrons pa Photon. Inoshandisa dema silicon seinoshanda zvinhu uye ine cone uye columnar nimaosture iyo inogona kutora ultraviolet mwenje.

Zviripachena iwe haugone kugadzira 0.32 elektrons kunze kwemweya mutete, mushure mezvose, fizikisi inoti simba racho harigone kugadzirwa kunze kwemhepo mutete, saka aya mamwe ma elekroni anobva kupi?

Izvo zvese zvinouya pasi kune iyo general inoshanda nheyo yemifananidzo yeiyo Photosvoltaic. Kana Photon yechiitiko ichizora chinhu chinoshanda, kazhinji silicon, inogogodza emagetsi kubva kune imwe yemaatomu. Asi mune zvimwe zviitiko, phoro-simba repamusoro inogona kugogodza maelekitori maviri pasina kutyora chero mitemo yefizikisi.

Hapana mubvunzo kuti kusunga chiitiko ichi kunogona kubatsira zvakanyanya mukuvandudza magadzirirwo emasokisi epasi. Muzvinyorwa zvakawanda zveOptoelectronic, kushanda kwakarasika munzira dzinoverengeka, kusanganisira kana mafoto aratidzwa kubva pachishandiso kana ma elecricons ne "maburi" akasara mumatomu asati aunganidzwa nedunhu.

Asi timu yaAalto inoti ivo vakanyanya kubvisa zvipingamupinyi izvo. Silicon dema inotora mamwe mafoto kupfuura zvimwe zvinhu, uye iyo tapenred uye columnar nanostures inoderedza kudzora kweEkisheni pane zvemukati.

Zvakazara, izvi zvinofambira mberi zvakagonesa iyo yekunze yekuwedzera kugona kweiyo mudziyo kuti isvike 130%. Mhedzisiro yechikwata yakatove yakazvimiririra yakazvimiririra neGermany's National Metrology Institute, iyo PTB (German Federal Institute of Fizikiti).

Maererano nevanoongorora, izvi zvinyorwa zvekubudirira zvinogona kuvandudza mashandiro ezvekuti chero PhotoDetector, kusanganisira maseru eSolar uye mamwe magetsi ekuona, uye idzva rondedzero iri kutoshandiswa kutengeswa.