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首页> 外文期刊>Journal of Crystal Growth >Epitaxial growth and luminescence characterization of Si/β-FeSi_2/Si multilayered structures by molecular beam epitaxy
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Epitaxial growth and luminescence characterization of Si/β-FeSi_2/Si multilayered structures by molecular beam epitaxy

机译:Si /β-FeSi_2/ Si多层结构的分子束外延外延生长和发光特性

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摘要

We have fabricated single-, three- and five-layered Si/β-FeSi_2/Si (SFS) double heterostructures (DH) on Si (001) substrates by reactive deposition epitaxy (RDE) for β-FeSi_2 and by molecular beam epitaxy (MBE) for Si. Time-resolved photoluminescence (PL) measurements revealed that the luminescence at 1.54 μm was composed of fast (16 ns) and slow (150 ns) components at 8 K. These are thought to originate from β-FeSi_2 and the defect-related D1 line in Si, respectively. 1.6 μm electroluminescence (EL) was obtained at room temperature (RT) from the five-layered SFS DH for current densities above 20 A/cm~2.
机译:我们已经通过对β-FeSi_2的反应沉积外延(RDE)和分子束外延在硅(001)衬底上制造了单层,三层和五层Si /β-FeSi_2/ Si(SFS)双异质结构(DH)。 MBE)for Si。时间分辨的光致发光(PL)测量表明,在8 K时,1.54μm处的发光由快速(16 ns)和慢速(150 ns)组成。这些被认为源自β-FeSi_2和缺陷相关的D1线分别在Si中。在室温(RT)下,对于电流密度大于20 A / cm〜2的五层SFS DH,可获得1.6μm电致发光(EL)。

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