Fabrication of a Rose-Petal-Inspired Micro/Nanostructured Surface via the Ultraviolet Nanoimprint Lithography and Roll-Press Methods

Rose petals exhibit functionalities, such as high contact angles (CAs) and high adhesion with water. Their surfaces comprise hierarchical micro/nanostructures. Nanopatterns can be fabricated on a microstructure via several conventional processes. However, the shortcoming of this approach is the challenge of fabricating a large hydrophobic surface. To address this issue, we employ a technology, which we had introduced to fabricate a large moth-eye film. First, we fabricate a nanostructure (moth-eye) as the hydrophobic surface, after which we fabricate the microstructure via a roll-press process on it to obtain the adhesion area. The fabricated surface exhibits high hydrophobicity and adhesion.