Room Temperature 1.6 µm Electroluminescence from a Si-Based Light Emitting Diode with ?-FeSi2Active Region

Autor: Takashi Suemasu, Takashi Suemasu, Yoichiro Negishi, Yoichiro Negishi, Ken'ichiro Takakura, Ken'ichiro Takakura, Fumio Hasegawa, Fumio Hasegawa
Zdroj: Japanese Journal of Applied Physics; October 2000, Vol. 39 Issue: 10 pL1013-L1013, 1p
Abstrakt: Room temperature electroluminescence (EL) was obtained for the first time from a Si-based light emitting diode with semiconducting silicide (?-FeSi2) active region. The peak wavelength was 1.6 µm and it is from ?-FeSi2balls embedded in a Si p-n junction. An a-axis oriented ?-FeSi2layer was grown on n+-(001) Si by reaction deposition epitaxy (RDE), then p- and p+-Si layers were grown by molecular beam epitaxy (MBE). The ?-FeSi2aggregated into balls with about 100 nm diameter in this process. The EL intensity increased superlinearly with increase of the injected current density, and reasonable EL was obtained at current density above 10 A/cm2, though the photoluminescence (PL) was difficult to be detected at room temperature.
Databáze: Supplemental Index