Work

Wettability conversion of ultrafast laser structured copper surface

Year: 2015

Type: article

Abstract: The wettability of metal oxides is vital to many applications including water erosion, filtration, and bioimplantation. In this work, the authors studied the wettability conversion behavior of picosecond laser structured copper surfaces in different atmospheres. The copper surfaces showed hydrophilicity initially after being irradiated by a picosecond laser. However, when they were stored in ambient air, their contact angles increased over time and became highly hydrophobic finally. The storage atmosphere influenced this process greatly, the atmosphere rich in CO2 or O2 would restrain the wettability transition, but the organic-rich and vacuum atmosphere would accelerate it. Detailed surface chemical analysis revealed that the adsorption of organic matters from the air played an important role in this wettability conversion process.

Source: Journal of Laser Applications

DOI: 10.2351/1.4906477

Authors: Jiangyou Long, Minlin Zhong, Peixun Fan, Dingwei Gong, Hongjun Zhang

Institution: Tsinghua University

Language: English

Topic: Surface Modification and Superhydrophobicity

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funder: National Natural Science Foundation of China

OpenAlex ID: W1997879822

FWCI: 4.905

Cites: 23

Cited by: 184

Related to: 10