Femtosecond laser-induced non-thermal welding for a single Cu nanowire glucose sensor.

ABSTRACT: Copper nanowires (CuNWs) are a key building block to facilitate carrier conduction across a broad range of nanodevices. For integration into nanoscale devices, manipulation and welding of these nanowires need to be overcome. Based on high energy density laser processing investigation, we report on innovative welding of single CuNWs to a silver film using a tightly focused laser beam combined with manipulation of CuNWs through the dielectrophoresis (DEP) method. Two types of lasers, femtosecond (FS) and continuous-wave (CW), were employed to analyze, improve, and control Cu-NW melting characteristics under high energy density irradiation. The FS laser welding of CuNWs resulted in a metallic joint with a low contact resistance suitable for functional electronic nanodevices. Computational sim

SUBMITTER: Yu Y 

PROVIDER: S-EPMC9419468 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature