Experimental study reports the synthesis and characterization of iron pyrite nanowires on steel, highlighting their utility for solar energy conversion.
We report the growth and structural, electrical, and optical characterization of vertically oriented single-crystalline iron pyrite (FeS(2)) nanowires synthesized via thermal sulfidation of steel foil for the first time. The pyrite nanowires have diameters of 4-10 nm and lengths greater than 2 μm. Their crystal phase was identified as cubic iron pyrite using high-resolution transmission electron microscopy, Raman spectroscopy, and powder X-ray diffraction. Electrical transport measurements showed the pyrite nanowires to be highly p-doped, with an average resistivity of 0.18 ± 0.09 Ω cm and carrier concentrations on the order of 10(21) cm(-3). These pyrite nanowires could provide a platform to further study and improve the physical properties of pyrite nanostructures toward solar energy conversion.
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Cabán‐Acevedo et al. (2012) studied this question.
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