Synthesis and Properties of Semiconducting Iron Pyrite (FeS2) Nanowires

被引：165

作者：

Caban-Acevedo, Miguel ^{[1
]}

Faber, Matthew S. ^{[1
]}

Tan, Yizheng ^{[1
]}

Hamers, Robert J. ^{[1
]}

Jin, Song ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA

来源：

NANO LETTERS | 2012年 / 12卷 / 04期

关键词：

Iron pyrite (FeS2); nanowire; semiconductor; solar energy conversion; photovoltaics; photoelectrochemistry; SOLAR-CELLS; THIN-FILMS; ALPHA-FE2O3; NANOWIRES; ELECTRICAL-PROPERTIES; SULFIDE NANOWIRES; ENERGY-CONVERSION; EVAPORATED IRON; PHOTOVOLTAGE; GROWTH;

D O I：

10.1021/nl2045364

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the growth and structural, electrical, and optical characterization of vertically oriented single-crystalline iron pyrite (FeS2) 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 mu m. 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 Omega 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.

引用

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页数：6

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