Single-Crystalline La_(0.7)Sr_(0.3)MnO_3 Nanowires by Polymer-Template-Directed Chemical Solution Synthesis

摘要

One-dimensional nanostructures, such as nanowires, -belts, -rods, and -tubes, have stimulated enormous interest because of their singular properties associated with quantum confinement and low dimensionality, and their significant promise as building blocks for functional materials, devices, and systems. The past decade has witnessed tremendous progress towards the synthesis and applications of ID nanostructures of metals, semiconductors, and oxides. There are, however, relatively few multicomponent materials and complex oxides of which nanowires have been achieved. One obvious reason for this is the inherent difficulty in controlling the reaction and achieving stoichiometry at the nanoscale. In the case of complex multicomponent oxides, chemical solution deposition (CSD) methods offer a precise control over stoichiometric composition, and have proven to be a highly flexible method for the fabrication of electronic oxide films and nanostructures. When combined with template-directed synthesis, CSD represents a convenient and versatile method for generating ID nanostructures.