金属纳米线的制备及其在电子材料中的应用

As the development of integration and flexibility of electronic devices, the traditional tin-lead solders, indium tin oxide (ITO) films and other materials no longer meet the requirements of properties, such as electric conductivity, thermal conductivity and flexibility. Metallic nanowires have excellent photoelectric properties and unique one-dimensional structure. New materials with them as key components have become the most potential substitutes for traditional electronic materials. The commercialization of metallic nanowires involves the aspects of raw material, equipment, process and application. However, the key technique lies in the large-scale, low-cost, green and efficient preparation of metallic nanowires. In this paper, the preparation methods of metallic nanowires are reviewed, including physical vapor deposition, chemical vapor deposition, template assisted, solvothermal process and polyol method. The applications of metallic nanowires in the field of electronic materials, such as conductive adhesives, transparent conductive films and thermal interface materials are summarized.