Two-Dimensional Silver Structures Fabricated by Two-Photon Femtolaser

For the feasibility discussion of metal ion reduction induced by the femtosecond laser two-photon absorption of organic polymer materials, the experiments are taken in silver nitrate and polyvinylpyrrolidone(PVP) film which mixed by the molar ratio of 1:1. In the developed two-photon fabrication system, a single line with the width of 25 μm and a 4 mm × 0.4 mm plate were fabricated. The X-ray photoelectron spectrum reveals that the main element in the product is silver, and the range of resistivity from 10^-3 to 10^-5 Ωm is calculated by measuring the resistance. The result shows that using two-photon induced reduction of metal ions, the reaction region can be controlled well, and it is helpful for the conductive metallic microstructure fabrication.