Supporting Information
Transparent, Superhydrophobic Surfaces from One-step Spin Coating of Hydrophobic Nanoparticles Lebo Xu, † Raghuraman G. Karunakaran,† Jia Guo, and Shu Yang* Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, Pennsylvania 19104 †:
These authors contributed equally to this work.
Correspondence should be addressed to:
[email protected] 1
Table S1. DI water contact angles of 0.8 wt% F-SiO2 NPs spin coated on glass before and after the water drop test and the Scotch tape test.
Sample Original After DI droplet test After Scotch tape test
θst 149.7 ± 1 143.9 ± 1 74.2 ± 2
θadv 160.4 ± 2 148.3 ± 1 75.5 ± 2
θrec N/A 136.8 ± 2 47.2 ± 2
Δθ = θadv - θrec (º) N/A 11.5 ± 2 28.3 ± 2
Figure S1. AFM images of 0.8 wt% F-SiO2 NPs coated on glass before (a) and after the water drop test (b) and the Scotch tape test (c). All images are of 5 µm × 5 µm scale with the height scale bar of 200 nm.
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