SiO2 Coated on ZnO Nanorod Arrays With UV-Durable Superhydrophobicity and Highly Transmittance on Glass

Abstract

ZnO nanorod arrays were fabricated on glass through hydrothermal way. Then a thin SiO 2 film was covered on ZnO nanorod arrays using pulsed laser deposition (PLD) technique, and modified by stearic acid. It was found that SiO 2 film only had slight effects on the contact angle and transmittance of ZnO nanorod arrays. However, it had brought a huge improvement in the UV durability of superhydrophobic ZnO nanorod arrays. The results showed that the water contact angle remains constantly at 160.5 • even UV irradiation time exceeded 50 h when the deposition time of PLD was about 10 min. This structure with UV-durable superhydrophobicity and highly transmittance on glass substrate can be served as front materials in solar cells.

Anti-mold, self-cleaning superhydrophobic bamboo fiber/polypropylene composites with mechanical durability

“…On superhydrophobic surfaces with a water contact angle (CA) higher than 150° ( Wang S. et al, 2011 ; Budunoglu et al, 2011 ; Wang et al, 2012 ; Nguyen-Tri et al, 2019 ), pollutants or dust can be easily removed by the rolling of water droplets. Generally, superhydrophobic surfaces can be obtained by a combination of rough surfaces and low-surface-energy substances ( Windeisen et al, 2007 ; Xu and Cai, 2008 ; Yang and Deng, 2008 ; Zimmermann et al, 2008 ; Wang S. L. et al, 2011 ; Ellinas et al, 2011 ; Lu et al, 2015 ; Lin et al, 2016 ; Mrad et al, 2018 ; Wu et al, 2018 ; Li et al, 2020 ; Lu et al, 2022 ). It is still challenging to produce BPCs with anti-mold, self-cleaning, and mechanical durability through a simple and convenient process.…”