Synthesis and Properties of Semiconducting Iron Pyrite (FeS2) Nanowires
详细信息 查看全文
- 作者：Miguel Cab谩n-Acevedo ; Matthew S. Faber ; Yizheng Tan ; Robert J. Hamers ; Song Jin
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：April 11, 2012
- 年：2012
- 卷：12
- 期：4
- 页码：1977-1982
- 全文大小：410K
- 年卷期：v.12,no.4(April 11, 2012)
- ISSN：1530-6992
文摘
We report the growth and structural, electrical, and optical characterization of vertically oriented single-crystalline iron pyrite (FeS<sub>2sub>) nanowires synthesized via thermal sulfidation of steel foil for the first time. The pyrite nanowires have diameters of 4鈥?0 nm and lengths greater than 2 渭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 卤 0.09 惟 cm and carrier concentrations on the order of 10<sup>21sup> cm<sup>鈥?sup>. These pyrite nanowires could provide a platform to further study and improve the physical properties of pyrite nanostructures toward solar energy conversion.