Extended Data Fig. 2: Characterization of 2DPA-1.
From: Irreversible synthesis of an ultrastrong two-dimensional polymeric material
a, Fourier-transform infrared (FTIR) spectrum of as-synthesized 2DPA-1 powder. b, Atomic force microscopy (AFM) image of bilayer nanoclusters and its height histogram along the white line (inset). c, AFM image of stacked nanosheets; inset shows its height histogram along the white line. d, AFM surface topology of a spin-coated film. e, AFM image from amplitude channel at its second eigenmode, obtained from a film surface. f, The size distribution obtained from e.
