A sea urchin-like oxide-based composite film biomimetic pressure sensor and its preparation method

Abstract

The invention relates to a sea urchin-like oxide-based composite film bionic pressure sensor, which includes a packaging layer, a flexible base, a sensitive film and an electrode, the flexible base is connected above and below the sensitive film, and the surfaces directly opposite to the flexible base above and below are covered There is a sea urchin-like oxide-based composite film, and the sea-urchin-like oxide-based composite film is connected with an external electrode. The sea urchin-like oxide-conductive material composite film is coated on the flexible substrate. On the one hand, the sea urchin-like metal oxide supports the conductive material and improves the deformation ability of the conductive material under pressure; on the other hand, the conductive material The material is coated on the surface of the sea urchin-like metal oxide, which makes up for the shortcomings of the sea urchin-like metal oxide such as poor electrical conductivity and high power consumption. Therefore, the combination of sea urchin-like metal oxides and conductive materials can make the sensor have the advantages of high sensitivity, low power consumption, simple preparation method, low cost, and easy mass production.

Description

technical field [0001] The invention relates to the technical fields of pressure sensors, composite nanomaterials and flexible wearable electronics, in particular to a sea urchin-like oxide-based composite membrane bionic pressure sensor and a preparation method thereof. Background technique [0002] Flexible pressure sensor is a new type of sensor that converts pressure signals into electrical signals. It has broad application prospects in the fields of intelligent robots, intelligent prosthetics, wearable electronics, health and medical monitoring, and human-computer interaction. Pressure-sensitive materials are an important factor restricting the performance of pressure sensors, and have received extensive attention from researchers in recent years. Conductive materials such as carbon materials, conductive polymers, and metals have excellent electrical conductivity, which can quickly convert pressure signals into electrical signals, and are widely used in flexible pressur...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a sea urchin oxide-based composite film bionic pressure sensor and The preparation method is to coat the sea urchin-like oxide-conductive material composite film on the flexible substrate, and then complete the preparation of the bionic pressure sensor after drawing out the electrodes and packaging. On the one hand, the sea urchin-like metal oxide plays a supporting role for the conductive material , improving the deformation ability of the conductive material under pressure; on the other hand, the conductive material is coated on the surface of the sea urchin-like metal oxide, which makes up for the poor conductivity and high power consumption of the sea urchin-like metal oxide.

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