Transparent and Superhydrophobic Co₃O₄ Microfiber Films

Abstract

Transparent and superhydrophobic films of wax-gourd-like biomimetic Co₃O₄ microfibers were successfully fabricated on glass slides and ITO using a feasible and controllable hydrothermal method, which involved calcination at high temperature. It was demonstrated that the roughness of the as-prepared microfibers could realize not only superhydrophobicity but also preferable transmittance. The transmittance of the Co₃O₄ microfiber films after chemical modification with thiol reached up to 88.2%, with a contact angle of 165° and a sliding angle as low as 8°.