Extended Data Fig. 4: Reaction time dependent AC-HRTEM images of 2DCOF-1 film.
From: Elastic films of single-crystal two-dimensional covalent organic frameworks
AC-HRTEM images of 2DCOF-1 films deposited onto holey copper grids at synthesis times of (a) 6 to 8 h (the inset shows a selected area electron diffraction pattern of the film), (b) 14 h, (c) 16 h, (d) 2 days, (e) 6 days, and (f) 7 days.
