HIGHLY SENSITIVE HYBRID RESPONSE CAPACITIVE PRESSURE SENSOR
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United States of America
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Mar 13, 2025
app pub date -
Jul 28, 2022
filing date -
Jul 28, 2022
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Abstract
Described herein is a flexible hybrid response pressure sensor (HRPS) composed of an electrically conductive porous nanocomposite (PNC) laminated with an ultrathin dielectric layer, resulting in significantly enhanced sensitivities (i.e., more than 400%) over wide pressure ranges, from 3.13 kPa-1 within 0-1 kPa to 0.43 kPa-1 within 30-50 kPa. In some aspects, the PNC is composed of carbon nanotubes (CNT) and a low viscosity and flexible, strong, and elastic rubber (e.g., Ecoflex™ (Smooth-On, Inc., Macungie, PA-Ecoflex™ is a platinum-catalyzed silicone)), and the ligaments of the PNC are electrically conductive due to adequate CNT doping.
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