Patent ID: 11911784
Assignee: CORNELL UNIVERSITY
Field: Basic materials chemistry (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 0:
1. A system for manufacturing a film or coating, the system comprising:
a. an electrospray nozzle configured to produce an electrostatically charged plume comprising a plurality of droplets, particles, or both comprising:
i. a first conduit, the first conduit being enclosed along the length of the conduit by a wall having an interior surface and an exterior surface, the first conduit having a first inlet end and a first outlet end, and the first conduit having a first diameter; and
ii. a second conduit, the second conduit being enclosed along the length of the conduit by a second wall having an interior surface, the second conduit having a second inlet end and a second outlet end, and the second conduit having a second diameter, the first and second conduit having a conduit overlap length, wherein at least a portion of the first conduit is positioned inside the second conduit, the exterior surface of the first wall and the interior surface of the second wall being separated by a conduit gap;

b. a power supply configured to apply an alternating current (AC) voltage to the nozzle, thereby providing an electric field;
c. a substrate configured to receive a deposition thereon;
d. a pressurized gas supply configured to provide a high velocity gas to the second inlet end, thereby providing a high velocity gas stream at the second outlet end, the high velocity gas stream having a velocity of at least 5 m/s; and
e. a fluid stock supply system fluidically connected to the first inlet end, wherein the fluid stock supply system is configured to provide a fluid stock to the first inlet end, thereby providing an electrostatically charged fluid stock at the first outlet end, wherein the fluid stock supply system is configured to provide the fluid stock to the first inlet end at a rate of from about 0.3 mL/min or more.