Ngaphezu koko, njengoko babonisa kwiphepha elithi "Direct bandgap emission from hexagonal germanium and silicon-germanium alloys" epapashwe kwijenali yeNdalo, baye bakwazi. Ubude bemitha yemitha buhlengahlengiswa ngokuqhubekayo kuluhlu olubanzi. Ngokutsho kwabo, ezi zinto zintsha zifunyenweyo zinokuvumela ukuphuhliswa kwee-photonic chips ngokuthe ngqo kwiisekethe ezidibeneyo ze-silicon-germanium.
Isitshixo sokuguqula i-alloys ye-SiGe ibe yi-emitter ye-bandgap ngqo kukufumana i-germanium kunye ne-germanium-silicon alloys ene-hexagonal lattice structure. Abaphandi kwiYunivesithi yaseTechnical yase-Eindhoven, kunye nabalingane abavela kwiYunivesithi yaseMunich yaseMunich kunye neeyunivesithi zaseJena naseLinz, basebenzisa i-nanowires ezenziwe kwizinto ezahlukeneyo njengeetemplates zokukhula kwe-hexagonal.
Iinanowires ke zisebenza njenge templates kwiqokobhe legermanium-silicon apho imathiriyeli engaphantsi ibeka isakhiwo sekristale esinehexagonal. Ekuqaleni, nangona kunjalo, ezi zakhiwo zazingenakuvuyela ukuvelisa ukukhanya. Emva kokutshintshiselana ngeengcamango kunye noogxa kwi-Walther Schottky Institute kwiYunivesithi yaseMunich yezobuchwepheshe, bahlalutya iimpawu ze-optical zesizukulwana ngasinye kwaye ekugqibeleni baphucula inkqubo yokuvelisa ukuya kwindawo apho ii-nanowires zinokukhupha ukukhanya.
"Ngaxeshanye, sifezekise ukusebenza ngokuphantse kuthelekiswe ne-indium phosphide okanye i-gallium arsenide," utshilo uProf. Erik Bakkers ovela kwiYunivesithi yeTekhnoloji yase-Eindhoven. Ngoko ke, ukudalwa kwee-lasers ngokusekelwe kwi-germanium-silicon alloys enokuthi idibaniswe kwiinkqubo zokuvelisa eziqhelekileyo ingaba yinto yexesha kuphela.
"Ukuba sinokubonelela nge-optically unxibelelwano lwe-elektroniki lwangaphakathi kunye ne-inter-chip, isantya sinokunyuswa ngumlinganiselo we-1,000," kusho uJonathan Finley, uprofesa we-semiconductor quantum nanosystems kwi-TUM. zinokulinciphisa ngokuphawulekayo inani lelaser radar, izixhobo zokuva imichiza zoxilongo lwezonyango, kunye neetshiphusi zokulinganisa umoya nomgangatho wokutya.”
I-silicon germanium alloy inyibilikiswe yinkampani yethu inokwamkela ubungakanani obulungiselelweyo
Ixesha lokuposa: Jun-21-2023