Instituto de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile.
Centro de Investigación en Nanotecnología y Materiales Avanzados, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile.
Molecules. 2020 Nov 17;25(22):5377. doi: 10.3390/molecules25225377.
Nickel nanopillar arrays were electrodeposited onto silicon substrates using porous alumina membranes as a template. The characterization of the samples was done by scanning electron microscopy, X-ray diffraction, and alternating force gradient magnetometry. Ni nanostructures were directly grown on Si by galvanostatic and potentiostatic electrodeposition techniques in three remarkable charge transfer configurations. Differences in the growth mechanisms of the nanopillars were observed, depending on the deposition method. A high correlation between the height of the nanopillars and the charge synthesis was observed irrespective of the electrochemical technique. The magnetization measurements demonstrated a main dependence with the height of the nanopillars. The synthesis of Ni nanosystems with a controllable aspect ratio provides an effective way to produce well-ordered networks for wide scientific applications.
镍纳米柱阵列通过使用多孔氧化铝膜作为模板电沉积在硅衬底上。通过扫描电子显微镜、X 射线衍射和交流力梯度磁强计对样品进行了表征。通过恒电流和恒电位电沉积技术，在三种显著的电荷转移配置下，Ni 纳米结构直接在 Si 上生长。根据沉积方法的不同，观察到纳米柱的生长机制存在差异。无论电化学技术如何，纳米柱的高度与合成电荷之间都存在高度相关性。磁化测量显示出与纳米柱高度的主要依赖性。合成具有可控纵横比的 Ni 纳米系统为广泛的科学应用提供了一种生产有序网络的有效方法。
