Multifunctional surfaces produced by femtosecond laser pulses
Abstract
In this study, we create a multifunctional metal surface by producing a hierarchical nano/microstructure with femtosecond laser pulses. The multifunctional surface exhibits combined effects of dramatically enhanced broadband absorption, superhydrophobicity, and self-cleaning. The superhydrophobic effect is demonstrated by a falling water droplet repelled away from a structured surface with 30% of the droplet kinetic energy conserved, while the self-cleaning effect is shown by each water droplet taking away a significant amount of dust particles on the altered surface. The multifunctional surface is useful for light collection and water/dust repelling.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 20, 2015
- Source ID
- 10.1063/1.4905616
Entities
People
- A. Y. Vorobyev
- Chunlei Guo
Organizations
- Air Force Office of Scientific Research
- Gates Foundation
- University of Rochester