Flexible conductive composite metal nanowire grating material and preparation method thereof

The invention discloses a flexible conductive composite metal nanowire grating material. The flexible conductive composite metal nanowire grating material comprises a polydimethylsiloxane flexible substrate, a metal nanowire grating located on the flexible substrate, and a silicon dioxide layer located between the metal nanowire grating and the flexible substrate. The invention further discloses apreparation method of the flexible conductive composite metal nanowire grating material. The material of the invention overcomes the defects that a common terahertz metal grating structure generallylacks flexibility and is low in optical frequency transmittance, and has high optical transmittance for terahertz, infrared and visible light ultra-wide bands and also has good electrical conductivity. 本发明公开一种柔性导电复合金属纳米线光栅材料，包括聚二甲基硅氧烷柔性衬底，位于所述柔性衬底上的金属纳米线光栅，以及介于金属纳米线光栅和所述柔性衬底之间的二氧化硅层。进一步还公开了该柔性导电复合金属纳米线光栅材料的制备方法。本发明克服了普通的太赫兹金属光栅结构通常缺乏柔性且光频透过率较低的缺点，对太赫兹、红外与可见光超宽带具有高光学透过率的同时还具有良好的导电性。