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Epitaxial growth of WO_x nanorod array on W(001)

机译：WO_x纳米棒阵列在W（001）上的外延生长

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摘要

Nanorods of substoichiometric tungsten oxide (WO_x) were grown on W(001) substrates. Two methods for the growth of nanorods were used: oxidation of the substrate under appropriate conditions and the deposition of tungsten oxide from a tungsten foil heated in the presence of oxygen. The grown nanorods were observed using a scanning electron microscope and an atomic force microscope. The diameters of the nanorods were 5-20 rim. The nanorods were slightly inclined from the directions parallel or normal to the surface. The inclination of nanorods was explained in terms of the epitaxial relationship between WO_3 crystals and the W(001) substrate. The WO_3 crystals formed at the initial stage of growth act as the nuclei of WO_x nanorods. We observed selective enhancement of the growth in a certain epitaxial direction depending on the method of growth, and an array of WO_x nanorods was produced on the W(001) substrate.
机译：亚化学计量的氧化钨（WO_x）的纳米棒生长在W（001）衬底上。使用了两种生长纳米棒的方法：在适当的条件下氧化衬底，以及从在氧气存在下加热的钨箔中沉积氧化钨。使用扫描电子显微镜和原子力显微镜观察生长的纳米棒。纳米棒的直径为5-20个边缘。纳米棒从平行于或垂直于表面的方向稍微倾斜。纳米棒的倾斜是根据WO_3晶体与W（001）衬底之间的外延关系来解释的。在生长的初始阶段形成的WO_3晶体充当WO_x纳米棒的核。我们观察到根据生长方法的不同，在某些外延方向上生长的选择性增强，并且在W（001）衬底上产生了WO_x纳米棒阵列。

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