In this work, we synthesize large-area thin films of a conjugated, imine-based, two-dimensional covalent organic framework at the solution/air interface. Thicknesses between ∼2-200 nm are achieved. Films can be transferred to any desired substrate by lifting from underneath, enabling their use as the semiconducting active layer in field-effect transistors.
Feldblyum, J. I., McCreery, C. H., Andrews, S. C., Kurosawa, T., Santos, E. J. G., Duong, V., Fang, L., Ayzner, A. L., & Bao, Z. (2015). Few-layer, large-area, 2D covalent organic framework semiconductor thin films. Chemical Communications, 51(73), 13894-13897. https://doi.org/10.1039/c5cc04679c