Bugu da ƙari, kamar yadda suka nuna a cikin takarda "Direct bandgap emission daga hexagonal germanium da silicon-germanium alloys" da aka buga a cikin mujallar Nature, sun iya.Tsawon radiyo yana ci gaba da daidaitawa akan kewayo mai fadi.A cewar su, waɗannan sababbin binciken na iya ba da damar haɓaka kwakwalwan hoto kai tsaye a cikin haɗin gwiwar silicon-germanium.
Makullin canza sigin SiGe zuwa masu fitar da bandgap kai tsaye shine samun germanium da germanium-silicon gami tare da tsarin lattice hexagonal.Masu bincike a Jami'ar Fasaha ta Eindhoven, tare da abokan aiki daga Jami'ar Fasaha ta Munich da jami'o'in Jena da Linz, sun yi amfani da nanowires da aka yi daga wani abu daban a matsayin samfuri don haɓaka hexagonal.
Sannan nanowires ɗin suna aiki azaman samfuri don harsashi na germanium-silicon akan wanda abin da ke cikinsa ke ɗaukar tsarin crystal mai hexagonal.Da farko, duk da haka, waɗannan gine-gine ba za su iya jin daɗin fitar da haske ba.Bayan musayar ra'ayi tare da abokan aiki a Cibiyar Walther Schottky a Jami'ar Fasaha ta Munich, sun yi nazarin kaddarorin gani na kowane tsara kuma a ƙarshe sun inganta tsarin masana'antu har zuwa inda nanowires za su iya fitar da haske.
"A lokaci guda kuma, mun sami nasarar yin kusan kwatankwacin indium phosphide ko gallium arsenide," in ji Farfesa Erik Bakkers daga Jami'ar Fasaha ta Eindhoven.Saboda haka, ƙirƙirar lasers dangane da germanium-silicon alloys wanda za'a iya haɗawa a cikin tsarin masana'antu na al'ada na iya zama lokaci kawai.
"Idan za mu iya samar da hanyoyin sadarwa na ciki da na kwakwalwa ta hanyar sadarwa, za a iya kara saurin gudu da kashi 1,000," in ji Jonathan Finley, farfesa na semiconductor quantum nanosystems a TUM.na iya rage adadin radar laser, na'urori masu auna sinadarai don bincikar likita, da kwakwalwan kwamfuta don auna ingancin iska da abinci."
Silicon germanium gami da narkar da kamfaninmu na iya karɓar madaidaitan rabbai
Lokacin aikawa: Juni-21-2023