A device is provided. The device includes a nozzle, a source of carrier gas and a source of organic molecules in fluid communication with the nozzle. The device also includes an active cooling system disposed adjacent to the nozzle. Preferably, the device also includes a chamber, wherein the nozzle, and the active cooling system are disposed within the chamber. A substrate holder may also be disposed within the chamber, adapted to support a substrate beneath the nozzle, movable relative to the nozzle. Preferably, a substrate is held by the substrate holder, the substrate disposed at a distance of 0.1 to 10 mm from the active cooling system. Preferably, the device also includes a heating system attached to the nozzle. The points at which the heating system are attached to the nozzle preferably includes at least one point that is zero to 5 mm from the tip of the nozzle.