Fa'afeiloa'i i la matou upega tafa'ilagi!

Ua folafola mai e Hexagonal SiGe le tuʻufaʻatasia saʻo o Silicon Photonics…

E le gata i lea, e pei ona latou faʻaalia i le pepa "Direct bandgap emission from hexagonal germanium and silicon-germanium alloys" lomia i le tusi talaaga Natura, na latou mafaia. Ole umi ole galu fa'avevela e fa'aauau ona fetu'una'i ile lautele lautele. E tusa ai ma i latou, o nei suʻesuʻega fou e mafai ona faʻatagaina le atinaʻeina o meataalo photonic saʻo i totonu o le silicon-germanium integrated circuits.
O le ki i le fa'aliliuina o fa'ameamea SiGe i fa'aulu tu'u sa'o o le maua mai lea o u'amea germanium ma germanium-siliconi fa'atasi ai ma se fausaga lattice hexagonal. Tagata suʻesuʻe i le Iunivesite Faʻatekonolosi o Eindhoven, faʻatasi ai ma paaga mai le Iunivesite Faʻatekonolosi o Munich ma iunivesite o Jena ma Linz, faʻaaogaina nanowires na faia mai se mea ese e fai ma faʻataʻitaʻiga mo le tuputupu aʻe hexagonal.
Ona avea ai lea o nanowires e fai ma fa'ata'ita'iga mo se atigi germanium-silikoni lea e fa'apipi'i ai e le mea o lo'o i lalo se fausaga tioata hexagonal. I le taimi muamua, e ui i lea, o nei fausaga e le mafai ona fiafia e faʻamalama. Ina ua uma ona fefaʻasoaaʻi manatu ma a latou uo i le Walther Schottky Institute i le Iunivesite Faʻatekonolosi a Munich, na latou suʻesuʻeina mea faʻapitoa o augatupulaga taʻitasi ma iu ai ina faʻamalosia le gaosiga o gaosiga i le tulaga e mafai ai e le nanowires ona tuʻuina atu le malamalama.
"I le taimi lava e tasi, ua matou ausia le faʻatinoga e toetoe lava faʻatusatusa i le indium phosphide poʻo le gallium arsenide," o le tala lea a Prof. Erik Bakkers mai le Eindhoven University of Technology. O le mea lea, o le fausiaina o laser e faʻavae i luga ole germanium-silicon alloys e mafai ona tuʻufaʻatasia i faiga faʻagasologa masani e mafai ona naʻo se taimi.
"Afai e mafai ona matou tuʻuina atu fesoʻotaʻiga eletise i totonu ma vaʻavaʻai, e mafai ona faʻateleina le saoasaoa i se vaega o le 1,000," o le tala lea a Jonathan Finley, polofesa o semiconductor quantum nanosystems i TUM. e mafai ona matua fa'aitiitia le numera o radar leisa, masini fa'ama'i mo su'esu'ega fa'afoma'i, ma tupe meataalo mo le fuaina o le ea ma mea'ai.”
O le silicon germanium alloy ua fa'afefeteina e la matou kamupani e mafai ona talia vaega fa'apitoa


Taimi meli: Iuni-21-2023