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. 2016 Jun 15;6:27984. doi: 10.1038/srep27984

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The shifts were denoted by Δλ_R1/2 for every temperature step. The hysteresis is also shown by cooling down the heated surfaces for P3HT on the superhydrophobic surface and on the polymer coating alone. The inset shows the value of Δλ_R1/2 and water contact angle hysteresis as a function of SiO₂ nanoparticle concentration within the polymer matrix.