Electrohydrodynamic printing of nanomaterials for flexible and stretchable electronics
AssigneeNorth Carolina State University
InventorsYong Zhu, Jingyan Dong, Zheng Cui, Yiwei Han
Life of this patent
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Abstract
Disclosed are examples for printing a one-dimensional (1D) nanomaterial for use in stretchable electronic devices. An ink comprising a nanomaterial solution is dispersed from a pneumatic dispensing system of a printing device. The 1D nanomaterial is printed in a predefined pattern on an underlying substrate positioned on a ground electrode. A voltage is applied between the printing nozzle and the ground electrode to cause the ink to form into a cone during the printing. The substrate can be modified to increase the wettability of the substrate to enhance adhesion of the ink to the substrate.
Claims20
A method for printing a one-dimensional (1D) nanomaterial, the method comprising:
- preparing an ink comprising a nanomaterial solution;
- filling a pneumatic dispensing system of a printing device with the ink;
- modifying a surface of a substrate by applying at least one of:
- a dopamine coating or an ultraviolet ozone treatment;
- printing the 1D nanomaterial on the substrate positioned on a ground electrode, the 1D nanomaterial being printed according to a predefined pattern, and printing of the 1D nanomaterial comprising:
- causing the ink to flow from a printing nozzle of the printing device onto the substrate;
- and
- applying a voltage between the printing nozzle and the ground electrode causing the ink to form into a cone during the printing.
A method, comprising:
- modifying a surface of a substrate by applying a dopamine coating or an ultraviolet ozone (UVO) treatment;
- positioning the substrate on top of a ground electrode;
- and
- printing a nanomaterial component having a predefined pattern on the substrate by:
- causing nanomaterial ink to flow from a printing nozzle of a printing device onto the surface of the substrate;
- and
- applying a voltage between the printing nozzle and the ground electrode causing the ink to form into a cone during printing.
Dependencies are inferred from the claim text.