青色レーザーを用いた導電性金属パターンの直接描画法

抄録

Multi-scale direct writing method of metal microstructures using a 405 nm blue laser was proposed and demonstrated. We succeeded in fabricating the conductive metal structures in gelatin matrix containing silver nitrate by photoreduction using a blue laser. The concentration of silver nitrate in the sample solutions was optimized by measuring the conductivity of the fabricated silver structures. It was possible to control the fabrication line width by changing scanning speed of laser. A fabricated silver structure at 80 mW had a network structure in the sample, and it also had high conductivity. Finally, we demonstrated multi-scale modeling from micro to millimeter scale using objective lenses with different NA.