期刊
FRONTIERS IN CHEMISTRY
卷 8, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2020.575786
关键词
microlens array; artificial compound eye; superhydrophobicity; underwater superoleophobicity; liquid repellence; self-cleaning; anti-fogging
资金
- National Science Foundation of China [61875158, 61805192, 51975460]
- National Key Research and Development Program of China [2017YFB1104700]
- Open Project Program of Wuhan National Laboratory for Optoelectronics [2018WNLOKF003]
- Fundamental Research Funds for the Central Universities
- International Joint Research Laboratory for Micro/Nano Manufacturing and Measurement Technologies
Microlens arrays (MLAs) and MLA-based artificial compound eyes (ACEs) are the important miniaturized optical components in modern micro-optical systems. However, their optical performance will seriously decline once they are wetted by water droplets (such as fog, dew, and rain droplets) or are polluted by contaminations in a humid environment. In this mini-review, we summarize the research works related to the fabrication of superwetting MLAs and ACEs and show how to integrate superhydrophobic and superoleophobic microstructures with an MLA. The fabrication strategy can be split into two categories. One is the hybrid pattern composed of the MLA domain and the superwetting domain. Another is the direct formation of superwetting nanostructures on the surface of the microlenses. The superhydrophobicity or superoleophobicity endows the MLAs and ACEs with liquid repellence and self-cleaning function besides excellent optical performance. We believe that the superwetting MLAs and ACEs will have significant applications in various optical systems that are often used in the humid or liquid environment.
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