Related Experiment Video
Updated: Jun 10, 2026
Nanomoulding of Functional Materials, a Versatile Complementary Pattern Replication Method to Nanoimprinting
Published on: January 23, 2013
Biomimetic hierarchical ZnO structure with superhydrophobic and antireflective properties
Junjie Xiong1, Sachindra Nath Das, Beomki Shin
1Information and Electronic Materials Research Laboratory, Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-Dong, Seoul 120-749, Republic of Korea.
Abstract:
A two step method, with a combination of top-down and bottom-up approaches, was developed for the fabrication of ZnO based hierarchical structures with nanorods on microcraters. A layer of well c-axis aligned, transparent, conductive ZnO thin film was deposited by pulsed DC sputtering on a Corning glass substrate. The microcraters were created with anisotropic etching on the as-deposited ZnO thin film. ZnO nanorods were then synthesized onto the etched film by means of metal organic chemical vapor deposition. The resulting hierarchical film exhibits a high water contact angle (>160 degrees) with a low contact angle hysteresis (2 degrees) and low reflection over a wide spectral range. This biomimetic material may find potential applications in many industrial fields, e.g., self-cleaning, solar cells, displays.
