Photoluminescence Properties of β-FeSi2 on Cu- or Au-coated Si
نویسندگان
چکیده
The photoluminescence (PL) at 1.55 μm from semiconducting β-FeSi2 has attracted a noticeable interest for silicon-based optoelectronic applications. Moreover, its high optical absorption coefficient (higher than 10 cm above 1.0 eV) allows this semiconducting material to be used as photovoltanics devices. A clear PL spectrum for β-FeSi2 was observed by Cu or Au coating on Si(001). High-crystal-quality β-FeSi2 with a low-level nonradiative center was formed on a Cuor Aureated Si layer. This method of deposition can be applied to other materials requiring high crystal quality. Keywords—iron silicide, semiconductor, epitaxial, photoluminescence.
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