Fig. 5
From: Dual wettability on diarylethene microcrystalline surface mimicking a termite wing
Optical images of a microdroplet and size distributions. a–d Optical afterimages of the movement of a water droplet during bouncing on Surf1c+2c in 3 ms. Red arrows indicate direction of droplet’s movement. Blue circle marks are droplets adsorbing on the surface. e–g Distributions of diameters of water droplets contacted with Surf1c, Surf2c, and Surf1c+2c. e Distribution of diameters of water droplets contacted Surf1c, f contacting Surf2c, and g contacting Surf1c+2c. In the graphs e–g, the red dots show diameter distribution of non-bouncing droplets and black dots show diameter distribution of bouncing droplets generated by sprayer 1 (Spr. 1: Generating the microdroplet of 40–400 mm in diameter). The blue dots show diameter distribution of bouncing droplets generated by sprayer 2 (Spr. 2: generating the microdroplets of 400–1000 mm in diameter). Number of droplets used for preparation of distribution is indicated inside the graphs e–g. Scale bars for all optical images are 0.5 mm
