HIGHLY SENSITIVE SELF-POWERED PRESSURE SENSOR AND THE USE OF THE SAME
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United States of America
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Oct 31, 2024
app pub date -
Sep 26, 2023
filing date -
Sep 26, 2023
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Abstract
Provided is a self-powered pressure sensor which may show excellent pressure sensitivity by significantly improving transfer efficiency of charges generated by triboelectrification, the sensor including: a first electrode; a first triboelectrification unit positioned on the first electrode; a second triboelectrification unit including a pattern on which a microstructure is repeatedly positioned, the microstructure being reversibly in contact with or separated from the first triboelectrification unit by a physical external force, and having at least one surface in contact with the first triboelectrification unit to induce a change in a contact area; and a second electrode positioned inside the second triboelectrification unit and conformally positioned on a surface of the microstructure, wherein the first electrode and the second electrode are geometrically asymmetric to each other.
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