Fig. 2: Morphological characterization of lotus leaf and bionic cilia.
From: A high-efficiency bioinspired photoelectric-electromechanical integrated nanogenerator
a Prototype of lotus leaf. b SEM image of lotus leaf. The inset shows a papillary protrusion on the surface of lotus leaf. c The prepared physical sample of Pem-iCM. d–f Different aspect ratios of bionic cilia (Supplementary Table 1, aspect ratio (47, 25, 13) = Length (mm)/Diameter (mm)). The insets show the water contact angles of three samples. g–i Cross-sectional SEM images of bionic cilia with different aspect ratios.
