Spectral absorption control of femtosecond laser-treated metals and application in solar-thermal devices.

ABSTRACT: Direct femtosecond (fs) laser processing is a maskless fabrication technique that can effectively modify the optical, electrical, mechanical, and tribological properties of materials for a wide range of potential applications. However, the eventual implementation of fs-laser-treated surfaces in actual devices remains challenging because it is difficult to precisely control the surface properties. Previous studies of the morphological control of fs-laser-processed surfaces mostly focused on enhancing the uniformity of periodic microstructures. Here, guided by the plasmon hybridisation model, we control the morphology of surface nanostructures to obtain more control over spectral light absorption. We experimentally demonstrate spectral control of a variety of metals [copper (Cu), aluminium (

SUBMITTER: Jalil SA 

PROVIDER: S-EPMC7000826 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature