Wettability of laser-textured copper surface after a water-bath process

Hui Chung Cheng, Tien Li Chang, Chao Sung Lin, Ping Hei Chen*


研究成果: 雜誌貢獻期刊論文同行評審

6 引文 斯高帕斯(Scopus)


Although the wettability of ultrafast laser-textured surfaces has been widely studied recently, most studies have only investigated the transition mechanism of surface wettability after laser irradiation with elapsed time. It is already known that the laser-textured copper surface experiences a wettability transition from hydrophilicity to hydrophobicity due to the occurrence of partial deoxidation from CuO to Cu2O. This study investigates the surface wettability change of ultrafast (of the order of picoseconds) laser-textured copper surfaces treated with water baths of 50 °C and 100 °C. The pulse duration of the laser is 7 ps, the wavelength of the laser is 532 nm, and the fluence range is controlled at 1.27-2.97 J/cm2. This simple treatment changes laser-textured surfaces from hydrophobic to hydrophilic ones. Detailed surface chemical analyses revealed that the formation of Cu(OH)2 on top of the copper surfaces was attributed to the change in wettability.

期刊AIP Advances
出版狀態已發佈 - 2019 12月 1

ASJC Scopus subject areas

  • 一般物理與天文學


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