RT Journal Article
T1 A self-standing three-dimensional covalent organic framework film
A1 Yang, Yizhou
A1 Chen, Yanyan
A1 Izquierdo Ruiz, Fernando
A1 Schäfer, Clara
A1 Rahm, Martin
A1 Börjesson, Karl
AB AbstractCovalent crystals such as diamonds are a class of fascinating materials that are challenging to fabricate in the form of thin films. This is because spatial kinetic control of bond formation is required to create covalently bonded crystal films. Directional crystal growth is commonly achieved by chemical vapor deposition, an approach that is hampered by technical complexity and associated high cost. Here we report on a liquid-liquid interfacial approach based on physical-organic considerations to synthesize an ultrathin covalent crystal film. By distributing reactants into separate phases using hydrophobicity, the chemical reaction is confined to an interface that orients the crystal growth. A molecular-smooth interface combined with in-plane isotropic conditions enables the synthesis of films on a centimeter size scale with a uniform thickness of 13 nm. The film exhibits considerable mechanical robustness enabling a free-standing length of 37 µm, as well as a clearly anisotropic chemical structure and crystal lattice alignment.
PB Nature Portfolio
SN 2041-1723
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/91809
UL https://hdl.handle.net/20.500.14352/91809
LA eng
NO Yang, Y., Chen, Y., Izquierdo-Ruiz, F. et al. A self-standing three-dimensional covalent organic framework film. Nat Commun 14, 220 (2023). https://doi.org/10.1038/s41467-023-35931-4
NO University of Gothenburg (Suecia)
DS Docta Complutense
RD 21 abr 2025