Nanoscale Soft Wetting Observed in Co/Sapphire during Pulsed Laser Irradiation
نویسندگان
چکیده
Liquid drops on deformable soft substrates exhibit quite complicated wetting behavior as compared to those rigid solid substrates. We report a of Co nanoparticles (NPs) sapphire substrate during pulsed laser-induced dewetting (PLID). NPs produced by PLID wetted the with contact angle near 70°, which is in contrast typical metal thin films exhibiting angles greater than 90°. In addition, nanoscale γ-Al2O3 ridge about 15 nm size and amorphous Al2O3 interlayer were observed around beneath NP, respectively. The strongly indicates that became PLID. Moreover, was augmented under air due formation CoO shell, resulting smaller 30°.
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ژورنال
عنوان ژورنال: Nanomaterials
سال: 2021
ISSN: ['2079-4991']
DOI: https://doi.org/10.3390/nano11020268