Ngaphezu kwalokho, njengoba babonisa ephepheni elithi “Direct bandgap emission from hexagonal germanium and silicon-germanium alloys” eshicilelwe kumagazini iNature, bakwazile.Ubude begagasi bemisebe bulungiswa ngokuqhubekayo ebangeni elibanzi.Ngokusho kwabo, lokhu okutholakele okusha kungavumela ukuthuthukiswa kwama-photonic chips ngqo kumasekethe ahlanganisiwe e-silicon-germanium.
Isihluthulelo sokuguqula ama-alloys e-SiGe abe ama-bandgap emitters aqondile ukuthola ama-germanium ne-germanium-silicon alloys ngesakhiwo se-lattice ene-hexagonal.Abacwaningi base-Technical University yase-Eindhoven, kanye nozakwabo base-Technical University yaseMunich kanye namanyuvesi ase-Jena nase-Linz, basebenzisa ama-nanowires enziwe ngento ehlukile njengezifanekiso zokukhula okuyi-hexagonal.
Ama-nanowires abe esesebenza njengezifanekiso zegobolondo le-germanium-silicon lapho into engaphansi ibeka ukwakheka kwekristalu eyi-hexagonal.Nokho, ekuqaleni lezi zakhiwo azikwazanga ukukuthokozela ukukhipha ukukhanya.Ngemva kokushintshana ngemibono nozakwabo e-Walther Schottky Institute e-Technical University yaseMunich, bahlaziya izakhiwo ze-optical zesizukulwane ngasinye futhi ekugcineni balungiselela inqubo yokukhiqiza kuze kube sezingeni lapho ama-nanowires ayekwazi ngempela ukukhipha ukukhanya.
“Ngasikhathi sinye, sizuze ukusebenza okucishe kuqhathaniswe ne-indium phosphide noma i-gallium arsenide,” kusho uProf. Erik Bakkers wase-Eindhoven University of Technology.Ngakho-ke, ukwakhiwa kwama-lasers asekelwe ku-germanium-silicon alloys engahlanganiswa nezinqubo zokukhiqiza ezivamile kungase kube indaba yesikhathi kuphela.
"Uma singahlinzeka nge-optically ukuhlinzeka ngokuxhumana kwe-electronic yangaphakathi kanye ne-inter-chip, isivinini singakhuphuka nge-factor ye-1,000," kusho u-Jonathan Finley, uprofesa we-semiconductor quantum nanosystems e-TUM.linganciphisa kakhulu inani lama-laser radar, izinzwa zamakhemikhali zokuxilongwa kwezokwelapha, nama-chips okulinganisa umoya nekhwalithi yokudla.”
I-silicon germanium alloy encibilikiswe yinkampani yethu ingamukela izilinganiso ezenziwe ngokwezifiso
Isikhathi sokuthumela: Jun-21-2023