Abstract
Conference Title: 2015 IEEE 10th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Conference Start Date: 2015, April 7 Conference End Date: 2015, April 11 Conference Location: Xi'an, China Bio-inspired hierarchical Boron nitride (BN) nanostructure films were grown by a CVD method and two aspects of interface engineering (i.e. morphological changes and chemical functionalization) were applied to control their wetting properties. As a result, a wide range from superhydrophilicity with contact angle (CA) of ~5° to superhydrophobicity with CA of ~160° was obtained. Highly-rough vertical-to-substrate nanotube and nanosheet patterns demonstrated great water-repellency whereas conical nanostructures were less hydrophobic. On the other hand, hydroxyl-functionalized BN nanostructures were extensively wetted by water droplets.