通过多孔阳极氧化铝掩膜阳极氧化法制备的带镍尖端的钽纳米柱的研究。

A Study of TaO Nanopillars with Ni Tips Prepared by Porous Anodic Alumina Through-Mask Anodization.

作者信息

Vorobjova Alla I, Tishkevich Daria I, Outkina Elena A, Shimanovich Dmitry L, Razanau Ihar U, Zubar Tatiana I, Bondaruk Anastasia A, Zheleznova Ekaterina K, Dong Mengge, Aloraini Dalal A, Sayyed M I, Almuqrin Aljawhara H, Silibin Maxim V, Trukhanov Sergey V, Trukhanov Alex V

机构信息

Micro- and Nanoelectronics Department, Belarusian State University of Informatics and Radioelectronics, 220013 Minsk, Belarus.

Scientific-Practical Materials Research Centre of NAS of Belarus, 220072 Minsk, Belarus.

出版信息

Nanomaterials (Basel). 2022 Apr 14;12(8):1344. doi: 10.3390/nano12081344.

DOI:10.3390/nano12081344

PMID:35458052

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9025906/

Abstract

The paper discusses the formation of TaO pillars with Ni tips during thin porous anodic alumina through-mask anodization on Si/SiO substrates. The tantalum nanopillars were formed through porous masks in electrolytes of phosphoric and oxalic acid. The Ni tips on the TaO pillars were formed via vacuum evaporation through the porous mask. The morphology, structure, and magnetic properties at 4.2 and 300 K of the TaO nanopillars with Ni tips have been studied using scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometry. The main mechanism of the formation of the TaO pillars during through-mask anodization was revealed. The superparamagnetic behavior of the magnetic hysteresis loop of the TaO nanopillars with Ni tips was observed. Such nanostructures can be used to develop novel functional nanomaterials for magnetic, electronic, biomedical, and optical nano-scale devices.

摘要

本文讨论了在Si/SiO衬底上通过掩膜阳极氧化制备具有Ni尖端的TaO柱的过程。钽纳米柱是通过在磷酸和草酸电解质中使用多孔掩膜形成的。TaO柱上的Ni尖端是通过多孔掩膜真空蒸发形成的。利用扫描电子显微镜、X射线衍射和振动样品磁强计研究了具有Ni尖端的TaO纳米柱在4.2 K和300 K时的形貌、结构和磁性能。揭示了掩膜阳极氧化过程中TaO柱形成的主要机制。观察到具有Ni尖端的TaO纳米柱磁滞回线的超顺磁行为。这种纳米结构可用于开发用于磁性、电子、生物医学和光学纳米尺度器件的新型功能纳米材料。