Template-directed synthesis of ordered iron pyrite (FeS2) nanowires and nanotubes arrays |
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| Authors: | Yi Li Zili Han Liangxing Jiang Zhenghua Su Fangyang Liu Yanqing Lai Yexiang Liu |
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| Institution: | 1. School of Metallurgy and Environment, Central South University, Changsha, 410083, China
2. School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, 2052, Australia
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| Abstract: | Highly ordered iron pyrite (FeS2) nanowires and nanotubes arrays have been fabricated by using sol–gel method with AAO templates. The prepared nanowires and nanotubes have uniform lengths and 200 nm diameters. Their crystal phase was identified as cubic FeS2 by using X-ray diffraction, Raman spectroscopy, high-resolution transmission electron microscopy and selected-area electron diffraction pattern. The direct optical band gaps of the as-prepared FeS2 nanowires were 0.98 and 1.23 eV, respectively, indicating their suitability for photovoltaic application. |
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