Abstract
The transparent superhydrophobic coating on optical glass surface were interested self-cleaning technology for develop the windows in outdoor environmental. In this work, the polytetrafluoroethylene (PTFE) coated on silicon dioxide (SiO2) nanorods were used for study on the performance self-cleaning with antireflection property. The transparent superhydrophobic film with the SiO2 nanorod were prepared on glass slide and silicon wafer substrate by electron beam evaporation with oblique angle deposition technique and subsequent coating with the PTFE by plasma enhanced chemical vapor deposition (PECVD). The effect of SiO2 thickness layer on morphological, optical property and wettability were investigated by field-emission scanning electron microscope, spectrophotometer with angle dependent technique and contact angle measurement. The results indicated that the water contact angle increased with increasing the SiO2 thickness layer. Moreover, the PTFE/SiO2 nanorod films deposited on glass slide substrate exhibits a higher transmission was 93% at normal incident angle. In addition, the omnidirectional anti-reflection characteristic will be discussed in this paper.
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