Crystal morphology variation in inkjet-printed organic materials

► Explosive crystal morphology can be substantially varied by altering ink deposition parameters. ► Ink evaporation rate and microfluidic ink droplet confinement of nucleating phases drive morphology development. ► Explosive crystal size ranging from ∼300 nm to 1 mm produced, depending on deposition parameters. ► Energetic composite materials can be deposited with a lateral spatial resolution of ∼50 μm.