Bismuth quantum-wires arrays fabricated by electrodeposition in nanoporous anodic aluminum oxide and its structural properties

• Published in: Materials science & engineering. B, Solid-state materials for advanced technology Vol. 77; no. 3; pp. 246 - 249
• Main Authors: Peng, Yong, Qin, Dong-Huan, Zhou, Rong-Jie, Li, Hu-Lin
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 29.09.2000; Elsevier
• Subjects: Aluminum oxide; Amorphous semiconductors; glasses; Amorphous semiconductors; glasses; nanocrystalline materials; Bismuth nanowire; Clusters, nanoparticles, and nanocrystalline materials; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Materials science; Nanoscale materials and structures: fabrication and characterization; Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of specific thin films; Physics; Quantum-wires arrays; Structure of solids and liquids; crystallography; Bismuth nanowire; Quantum-wires arrays; Aluminum oxide; Quantum wires; Ultraviolet spectra; Visible spectra; Bismuth; Electrodeposition; XRD; Nanostructures; Absorption spectra; Experimental study; TEM
• ISSN: 0921-5107; 1873-4944
• DOI: 10.1016/S0921-5107(00)00492-X

Ultrafine bismuth nanowire arrays have been fabricated by electrodeposition into nanoporous anodic aluminum templates in a composite electrolyte solution, in which the diameter of nanowire as low as 3 nm can be obtained. The micrographs and crystal structures of Bi nanowires are studied by transmission electron microscopy (TEM), selected-area electron diffraction (SAED), and X-ray diffraction (XRD). It is found that each nanowire is essentially a single crystal and has a different orientation in an array. The optical properties of the Bi nanowire arrays are studied by UV-VIS spectra. The experimental results exhibit blue-shifted phenomena with decreasing wire diameter, which is qualitatively consistent with the effective medium theory.