Uyezve, sezvavakaratidza mupepa "Direct bandgap emission kubva kune hexagonal germanium uye silicon-germanium alloys" yakabudiswa mumagazini Nature, vakakwanisa.Iyo radiation wavelength inoramba ichichinjika pamusoro pehupamhi.Sekureva kwavo, izvi zvitsva zvakawanikwa zvinogona kubvumira kuvandudzwa kwemafotonic chips zvakananga musilicon-germanium yakasanganiswa maseketi.
Kiyi yekushandura SiGe alloys kuita yakananga bandgap emitters ndeyekuwana germanium uye germanium-silicon alloys ine hexagonal lattice chimiro.Vatsvakurudzi paTechnical University yeEindhoven, pamwe chete nevanoshanda navo kubva kuTechnical University yeMunich nemayunivhesiti eJena neLinz, vakashandisa nanowires akagadzirwa kubva kune zvakasiyana-siyana sema templates ekukura kwehexagonal.
Iwo nanowires anobva ashanda sematemplate egermanium-silicon shell pane iyo yepasi zvinhu inoisa hexagonal crystal chimiro.Zvisinei, pakutanga, zvimiro izvi zvaisagona kufara kuti zvibudise chiedza.Mushure mekuchinjana mazano nevanoshanda navo kuWalther Schottky Institute paTechnical University yeMunich, vakaongorora maitiro ekuona kwechizvarwa chega chega uye pakupedzisira vakakwenenzvera nzira yekugadzira kusvika pakuti nanowires yaigona kunyatsoburitsa chiedza.
"Panguva imwe cheteyo, takawana kushanda kwakada kufanana ne indium phosphide kana gallium arsenide," anodaro Prof. Erik Bakkers kubva kuEindhoven University of Technology.Naizvozvo, kusikwa kwema lasers kunobva kune germanium-silicon alloys inogona kubatanidzwa mune yakajairwa maitiro ekugadzira inogona kungova nyaya yenguva.
"Kana tikakwanisa kupa optically kupa mukati uye inter-chip electronic communication, kukurumidza kunogona kuwedzerwa nechikamu che1,000," akadaro Jonathan Finley, purofesa we semiconductor quantum nanosystems paTUM.inogona kuderedza zvakanyanya huwandu hwemalaser radar, ma sensor emakemikari ekuongororwa kwekurapa, uye machipisi ekuyera mhepo uye chikafu.
Iyo silicon germanium alloy yakanyungudutswa nekambani yedu inogona kugamuchira yakagadziridzwa zviyero
Nguva yekutumira: Jun-21-2023