Ọzọkwa, dị ka ha gosiri na akwụkwọ "Direct bandgap emission si hexagonal germanium na silicon-germanium alloys" bipụtara na magazin Nature, ha nwere ike.Ogologo ikuku radieshon na-aga n'ihu na-agbanwe agbanwe n'ofe oke.Dị ka ha si kwuo, nchọpụta ọhụrụ ndị a nwere ike inye ohere ịmepụta ibe fotonic ozugbo na sekit agbakwunyere silicon-germanium.
Isi ihe na-agbanwe alloys SiGe ka ọ bụrụ ndị na-emepụta bandgap kpọmkwem bụ inweta germanium na germanium-silicon alloys nwere usoro lattice hexagonal.Ndị na-eme nchọpụta na Technical University of Eindhoven, tinyere ndị ọrụ ibe si Technical University of Munich na mahadum Jena na Linz, ji nanowires mere si dị iche iche ihe dị ka ndebiri maka hexagonal ibu.
Nanowires na-arụkwa ọrụ dị ka ndebiri maka shei germanium-silicon nke ihe dị n'okpuru na-etinye nhazi kristal hexagonal.Otú ọ dị, ná mmalite, ihe owuwu ndị a enweghị ike inwe mmasị na-amụnye ọkụ.Mgbe ha na ndị ọrụ ibe ha nwesịrị echiche na Walther Schottky Institute na Technical University of Munich, ha nyochara njirimara anya nke ọgbọ ọ bụla ma mesịa mee ka usoro mmepụta ihe dịkwuo mma ruo n'ókè nanowires nwere ike ịmịnye ọkụ.
"N'otu oge ahụ, anyị enwetala arụmọrụ nke fọrọ nke nta ka ọ bụrụ nke indium phosphide ma ọ bụ gallium arsenide," ka Prọfesọ Erik Bakkers nke Mahadum Teknụzụ Eindhoven na-ekwu.Ya mere, ịmepụta lasers dabeere na germanium-silicon alloys nke nwere ike ịbanye n'ime usoro mmepụta ihe nwere ike ịbụ naanị oge.
Jonathan Finley, onye prọfesọ nke semiconductor quantum nanosystems na TUM kwuru, "Ọ bụrụ na anyị nwere ike ịnye nzikọrịta ozi elektrọnik n'ime na nke etiti, ọsọ ahụ nwere ike ịbawanye site na 1,000.nwere ike ibelata ọnụ ọgụgụ radar laser, ihe mmetụta kemịkalụ maka nyocha ahụike, yana ibe maka ịlele ikuku na ịdị mma nri.”
Alloy silicon germanium gbazere nke ụlọ ọrụ anyị nwere ike ịnakwere oke ahaziri
Oge nzipu: Jun-21-2023