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一维金属/半导体异质结纳米材料因其新颖的结构、独特的光电特性和在纳电子领域应用的巨大优势和潜力而受到广泛的关注和重视。本文基于国内外最新研究进展及本课题组的研究工作,系统综述了近年来逐步建立起来的一维金属/半导体异质结纳米材料的制备方法及其性能研究。着重介绍了化学气相沉积法、热蒸发沉积法、模板法、自组装法和液相法等几种比较重要的制备方法,并分析了它们的优缺点;详细分析了此类纳米材料库仑阻塞效应、肖特基二极管现象、欧姆接触特性、电致发光特性等性能的特点。文章最后指出液相法能有效获得高质量和技术可用的一维金属/半导体异质结纳米材料,使用该法进行制备和性能研究将成为此类纳米材料的未来发展方向。
One-dimensional metal / semiconductor heterojunction nanomaterials have received wide attention and attention for their novel structure, unique photoelectric properties and great advantages and potential for applications in nanoelectronics. Based on the latest research progress at home and abroad and the research work of our research group, this paper systematically reviews the preparation methods and properties of one-dimensional metal / semiconductor heterojunction nanomaterials gradually established in recent years. Several important preparation methods such as chemical vapor deposition method, thermal evaporation deposition method, template method, self-assembly method and liquid phase method are emphatically introduced, and their advantages and disadvantages are analyzed. The Coulomb blockade effect of such nanomaterials is analyzed in detail , Schottky diode phenomenon, ohmic contact characteristics, electroluminescent characteristics of the performance characteristics. Finally, the article points out that the liquid phase method can effectively obtain high-quality and technologically available one-dimensional metal / semiconductor heterojunction nanomaterials. The preparation and performance studies using this method will become the future development direction of such nanomaterials.