1. Flexible paper based piezo-resistive sensor functionalised by 2D-WSe2 nanosheets.
- Author
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Pataniya, Pratik M, Sumesh, C K, Tannarana, Mohit, Zankat, Chetan K, Solanki, G K, Patel, K D, and Pathak, V M
- Subjects
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PRESSURE sensors , *DETECTORS , *FILTER paper , *ELECTRONICS - Abstract
High-performance electronics demand extremely sensitive piezo-resistive sensors with important features such as low-fabrication cost, easy implementation, low power consumption and high-pressure sensitivity over broad pressure range. Herein, we report a flexible piezo-resistive paper-based device functionalised by WSe2 nanosheets. An efficient and low-cost fabrication strategy using Whatman filter paper and tissue paper is adopted for versatile sensing applications. The WSe2 nanosheets were synthesized by high-yield and size-controlled liquid phase exfoliation technique. The flexible WSe2 nanosheets-paper sensor shows excellent response in broad pressure range of 1 Pa–100 kPa with exceptionally high sensitivity of 29.24 kPa−1, current responsivity of 70 and response time of 100 ms. The pressure sensor is also employed to recognize the pressure generated due to finger tapping. Encouragingly, the piezo-resistive sensors can also sense extremely small pressure differences of about 1.4 Pa generated by water drops. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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