论文部分内容阅读
金属薄膜在透明导电极、化学传感器、催化和光电器件等方面具有广泛应用.发展溶液加工技术可以大幅度降低金属薄膜的制作成本,灵活地调控其性能,从而促进其在多方面的应用.我们发现氙灯光源可以高效地焊接在水-气界面上自组装的金和银纳米粒子薄膜;其焊接程度取决于光照时间和光强度.最终,自组装的纳米粒子膜形成一种自支撑、高度交联的网状结构,并具有和同样厚度的体相金属薄膜相当的导电性.这一发现将纳米粒子界面自组装技术与光焊接技术相结合,可以将液相金属溶胶加工成高柔性、鲁棒性和导电性的金属粒子薄膜.这不仅可以促进金属粒子薄膜自身的应用,而且可以促进全液相加工的电子和光电器件的发展.例如,利用该金属粒子薄膜作为叉指电极的钙钛矿光电探测器展现出了良好的性能.
Metallic thin films are widely used in transparent conductive electrodes, chemical sensors, catalysis and optoelectronic devices, etc. The development of solution processing technology can greatly reduce the production cost of metal thin films and flexibly control their performance so as to promote their application in many aspects. Xenon light sources were found to efficiently weld self-assembled gold and silver nanoparticle films on a water-gas interface; their degree of soldering was dependent on the duration of the light and on the light intensity.Finally, the self-assembled nanoparticle films formed a self-supporting, highly crosslinked Of the network structure and with the same thickness of the bulk metal film of the equivalent conductivity of the discovery of nano-particle interface self-assembly technology and optical welding technology can be liquid metal sol processing into highly flexible, robust And conductive metal particle films which not only promote the application of the metal particle film itself but also facilitate the development of full liquid phase processing of electronic and optoelectronic devices such as perovskites using the metal particle film as an interdigital electrode Photodetectors show good performance.