Fig. 3

Assembly of mesocrystals by evaporation-driven poor-solvent enrichment at different NC concentrations and evaporation rate. a Apparent size of mesocrystals (filled symbols) and c_C/Δt (open diamonds) as a function of initial NC concentration, c(0). The error bars for the size represent the standard deviation of the mean (number of measurements: 397 for #5, 241 for #6, 120 for #7, and 145 for #2). b SEM images of mesocrystals produced at different c(0): 0.375 mg mL⁻¹ (sample #5, red) and 3 mg mL⁻¹ (sample #2, purple). Scale bar = 10 μm for both samples. c Apparent size of mesocrystals (filled symbols) and c_C/Δt (open diamonds) as a function of Δt. The error bars for the size represent the standard deviation of the mean mean (number of measurements: 145 for #2, 106 for #8, and 92 for #9). Individual mesocrystal produced at very low evaporation rate (sample #9); d SEM image at 1.25 k magnification, scale bar = 50 μm; and sequentially magnified (×4, 16, 64, and 256 times) SEM images with corresponding FFT patterns; e ×4 (5 k magnification), scale bar = 10 μm; f ×16 (20 k magnification), scale bar = 2 μm; g ×64 (80 k magnification), scale bar = 500 nm; and h ×256 (320 k magnification), scale bar = 100 nm