Fig. 4: AFM nanoindentation of decacyclene films spanning over a 1 µm circular aperture. | Nature Communications

Fig. 4: AFM nanoindentation of decacyclene films spanning over a 1 µm circular aperture.

From: Freestanding non-covalent thin films of the propeller-shaped polycyclic aromatic hydrocarbon decacyclene

Fig. 4

Representative AFM images before a and after b nanoindentation. White arrow in a indicates the point of the indentation with the AFM tip. c Representative force-indentation curve. Red curve shows the fit in the elastic regime. Red arrow points to a small drop in the slope of the curve. Above this point the fit of the elastic properties is no longer valid. The green arrow shows the breaking event when the thin film fully ruptures. d Histogram of the penetration force needed to rupture the thin film. e Histogram of the force inducing non-elastic changes in the thin films. f Effective Young’s modulus of decacyclene film.

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