Preferential deposition of cyanometallate coordination polymer nanoplates through evaporation of droplets

Preferential depositing coordination polymers onto substrates is of significance in realizing the potential of the coordination polymers for applications such as electronics, batteries, personal wearable devices. In this work, we reported a room-temperature method to deposit self-adhesive coordination polymers nanoplates on glass slides preferentially. Optical microscopy and scanning electron microscopy were employed to characterize the shape and thickness of the film. By investigating the humidity and concentration of the nanoplates, structure change between disk-like film and ring-like film was illustrated. A phase-diagram was drawn to distinguish the disk-like ring-like depositions. The preferential deposition of nanoplates can give the possibility to explore further applications of coordination polymers in the future.