A kind of preparation method and preparation device of elastic circuit or electrode

Abstract

The invention provides a preparation method and a preparation device of an elastic circuit or an electrode. Using a conductive template circuit or electrode, using a connecting pump and a connecting tube, the liquid metal that has been refined into nanometers to microns is drawn upwards into the container containing the template circuit or electrode, and the external power supply, the template circuit or electrode and The liquid metal forms a conductive circuit, and under the action of voltage and current, the liquid metal "adsorbs" on the surface of the template circuit or electrode, thereby "replicating" the pattern of the circuit or electrode; then immerses the liquid elastic material on its surface, and peels off after curing The elastic body, the liquid metal "adsorbed" on the surface of the template circuit or electrode is then peeled off, and the liquid metal circuit and electrode embedded in the elastic body are obtained. The method is simple and easy to implement, low in cost and high in preparation efficiency, and the line width of the elastic circuit or electrode can be controlled by controlling the line width of the template circuit or electrode, and the line width is easy to control.

Description

technical field [0001] The invention relates to the technical field of flexible electronics, in particular to a method and device for preparing elastic circuits or electrodes, and has broad application prospects in the fields of flexible electronic device circuits, flexible sensors, and the like. Background technique [0002] Flexible electronics can be summarized as an emerging electronic technology that manufactures organic / inorganic material electronic devices on flexible / ductile plastic or thin metal substrates. It has broad application prospects in information, energy, medical, national defense and other fields, such as flexible electronic displays, organic Light-emitting diode OLED, printed RFID, thin-film solar panel, electronic surface paste (SkinPatches), etc. Flexible electronics have attracted more and more attention in recent years due to their unique flexibility / stretchability, especially in consumer electronics and biomedical applications. [0003] So far, the...

AI Technical Summary

Problems solved by technology

Currently, there are various methods to fabricate liquid metal circuits or electrodes, for example, inkjet printing, microfluidic injection, template deposition, 3D printing, direct writing, stencil printing, etc., all of which have their own unique advantages. Advantages, however, the line width of elastic circuits or electrodes prepared by these methods is not easy to control, the process is complicated, the requirements for experimental equipment are high, and rapid preparation cannot be achieved. Therefore, it is necessary to simply and quickly prepare stretchable elastic circuits or electrodes with controllable line width One of the technical research topics in this field

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