Fig. 5: AFM-IR analysis of the smallest nano-objects.
From: Single polyoxometalate-based nanoclusters characterized by infrared absorption nanospectroscopy
a 3D AFM-IR image combining topography, IR absorption at 1645 cm−1 (red contribution) and IR absorption at 950 cm−1 (blue contribution). Absorption at both wavenumbers appears in purple; b AFM-IR spectrum (left) and height profile (right) of a small nano-object (marked with white dashes on the 3D image).
