Colloidal particles of metal–organic frameworks (ZIF-8 and UiO-66) with different polyhedral shapes can self-assemble into well-ordered, porous three-dimensional superstructures. These superstructures function as photonic crystals, with a photonic band gap that depends on the size of the MOF particles and shifts upon the sorption of guests within their pores.
- Civan Avci
- Inhar Imaz
- Daniel Maspoch