Yang Qing, Kukino Hitonori, Tatsuoka Hirokazu
Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8011, Japan.
J Nanosci Nanotechnol. 2010 Nov;10(11):7795-9. doi: 10.1166/jnn.2010.2890.
Alpha-Fe2O3 nanowires and nanobelts were grown by the thermal oxidation of iron substrates with or without gallium droplets in the air. The nanowires and nanobelts show a bicrystal structure with the growth direction uniformly along [110]. The morphological and structural properties of the as-grown alpha-Fe2O3 nanostructures are described and the growth condition dependence of the alpha-Fe2O3 nanostructures is shown. The transformation from nanowires to nanobelts occurs with the increase of growth temperature and addition of gallium. In addition, the growth evolution is investigated with reference to the Fe surface diffusion and supersaturation.
通过在空气中对有或没有镓滴的铁基板进行热氧化来生长α-Fe2O3纳米线和纳米带。纳米线和纳米带呈现出双晶结构，其生长方向沿[110]均匀分布。描述了生长态α-Fe2O3纳米结构的形态和结构特性，并展示了α-Fe2O3纳米结构对生长条件的依赖性。随着生长温度的升高和镓的添加，会发生从纳米线到纳米带的转变。此外，还参考铁表面扩散和过饱和度对生长演变进行了研究。
