Journal
SURFACE & COATINGS TECHNOLOGY
Volume 316, Issue -, Pages 85-92Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2017.03.010
Keywords
Spinning technology; Mosquito eyes; Binary structures; Antireflection; Super-hydrophobic
Funding
- Science and Technology Development Project of Jilin Province [20150519007JH]
- 111 project of China [B16020]
- Graduate Innovation Fund of Jilin University [2016177]
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Inspired by the compound eyes of the mosquito, the uniform hierarchical structures with antireflectivity and superhydrophobicity has been designed and prepared by spinning technology. Microscale silica spheres and nanoscale colloidal particles were assembled on glass substrate to produce binary structures. To enhance the hydrophobicity, particles were modified by N-(beta-aminoethyl)-gamma-aminopropylmethylbimethoxy silane (KH-602) before deposition. And annealing process was used to strengthen the mechanical robustness. The resultant structures exhibited low reflections of less than 0.5%, and high static water contact angle (WCA) of larger than 160 degrees. Furthermore, tape adhesion test and washing test showed that the artificial nano-/micro-structures had excellent mechanical robustness. Meanwhile the superhydrophobic surface owned the capacities of self-cleaning ability and chemical stability. We anticipate that these advantages could potentially enhance the performance of optoelectronic devices and help them to survive in terrible environment. Moreover, this self-assembly method is facile, cost effective, and suitable for high-throughput fabrication of binary colloidal arrays. (C) 2017 Elsevier B.V. All rights reserved.
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