I-Black Silicon PhotoDector Record: I-Quantum Yangaphandle Yokusebenza Kufika ku-132%

I-silicon emnyamaI-PhotoDETETETETECETETETQopha: I-Quantum Yangaphandle Ye-Quantum kuze kube yi-132%

Ngokwemibiko yabezindaba, abacwaningi e-Aalto University bathuthukise idivaysi ye-Optoelectronic ngokusebenza kwe-quantum yangaphandle okufika ku-132%. Le feat engathandeki yatholakala ngokusebenzisa ama-silicon amnyama abunjiwe, angaba yi-reakrough enkulu yamangqamuzana elanga nokunyePhotoDeteectors. Uma idivaysi ye-hypovoltaic ye-hypovoltaic inokusebenza kwamaphesenti ayi-100, okusho ukuthi wonke ama-photon ashaya ikhiqiza i-elektroni, eqoqwe njengogesi ngesifunda.

Futhi le divayisi entsha ayigcini nje ngokuthola ukusebenza kahle kwamaphesenti ayi-100, kepha amaphesenti angaphezu kwe-100. I-132% isho isilinganiso sama-elektroni ayi-1.32 nge-Photon nge-Photon. Isebenzisa i-silicon emnyama njengezinto ezisebenzayo futhi ine-cone ne-columntar nanostrupture engadonsa ukukhanya kwe-ultraviolet.

Ngokusobala awukwazi ukudala ama-elektroni angezekile angezelwe emoyeni omncane, phela, i-physics ithi amandla awanakudalwa emoyeni omncane, ngakho-ke avelaphi ama-elektroni angeziwe?

Konke kwehlela emthethweni osebenza jikelele wezinto ze-photovoltaic. Lapho i-Photon yokukhanya kwesigameko ishaya into esebenzayo, imvamisa i-silicon, ingqongqoza i-elektroni kwelinye lama-athomu. Kepha kwezinye izikhathi, i-Photon Ener Energy ingangqongqoza ama-elektroni amabili ngaphandle kokuphula noma yimiphi imithetho ye-physics.

Akungatshazwa ukuthi ukubopha le nto kungasiza kakhulu ekuthuthukiseni ukwakheka kwamangqamuzana elanga. Ezintweni eziningi ze-opoleelectronic, ukusebenza kahle kulahleka ngezindlela eziningi, kufaka phakathi lapho ama-photons aboniswa kudivayisi noma ama-elektroni ahlangana kabusha nge "izimbobo" ezisele emafulethini ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yisifunda ngaphambi kokuqoqwa yi-athomu ngaphambi kokuqoqwa yisekethe.

Kepha iqembu lika-Aalto lithi basuse kakhulu lezo zingqinamba. I-Silicon emnyama imunca ama-Photon amaningi kunezinye izinto, kanye ne-tapered ne-columnar nanostructions yehlisa ukubuyiselwa kwe-elektroni endaweni yokwenziwa.

Sekukonke, lezi zithuthukiswa zinikeze amandla ukusebenza kahle kwe-quantum yangaphandle yedivayisi ukufinyelela ku-130%. Imiphumela yeqembu iye yaqinisekiswa ngokuzimela yi-National Metrology Institute, i-PTB (Isikhungo Sombuso WaseJalimane Wezimpisi).

Ngokusho kwabaphenyi, lokhu kusebenza kahle kwamarekhodi kungathuthukisa ukusebenza kwanoma iyiphi i-PhotoDetor, kufaka phakathi amaseli elanga nezinye izinzwa ezikhanyayo, futhi umtshina omusha usuvele usetshenzisiwe kwezentengiso.