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首页> 外文期刊>Crystal growth & design >From 2D nanoflats to 2D nanowire networks: A novel hyposulfite self-decomposition route to semiconductor FeS2 nanowebs
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From 2D nanoflats to 2D nanowire networks: A novel hyposulfite self-decomposition route to semiconductor FeS2 nanowebs

机译：从2D纳米扁平体到2D纳米线网络：通往半导体FeS2纳米纤维网的新型亚硫酸盐自分解途径

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摘要

A novel strategy has been put forward to prepare two-dimensional (2D) sulfide nanowebs using a simple hyposulfite self-decomposition route. As an example, semiconductor FeS2 monocrystalline 2D nanowebs were prepared, in which we demonstrate that complex geometrical objects of micro- and nanoscales can be prepared by a simple and template-free solution route. The X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), and X-ray photoelectron spectroscopy (XPS) examinations show that our strategy is reasonable and successful. The band gap of FeS2 nanowires was determined to be 5.64 eV by UV-vis absorption spectrum, showing its promising application for the reversible conversion between solar energy and electrical or chemical energy. This designed method can be easily controlled and has been extended to fabricate 3D FeS2 nanowire networks.
机译：提出了一种使用简单的亚硫酸盐自分解路线制备二维（2D）硫化物纳米网的新策略。例如，制备了半导体FeS2单晶2D纳米纤维网，其中我们证明了可以通过简单且无模板的溶液路线制备微米级和纳米级的复杂几何物体。 X射线衍射（XRD），透射电子显微镜（TEM），场发射扫描电子显微镜（FESEM）和X射线光电子能谱（XPS）检验表明，我们的策略是合理且成功的。通过紫外可见吸收光谱确定FeS2纳米线的带隙为5.64 eV，显示出其在太阳能与电能或化学能之间可逆转换中的应用前景广阔。这种设计的方法可以轻松控制，并已扩展到制造3D FeS2纳米线网络。

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