| Autor: |
Ying, Shu, Zhang, Jiahan, Yan, Ke, Xin, Ming, Zhang, Jing, Li, Sheng, Liang, Junge, Shi, Yi, Pan, Lijia |
| Předmět: |
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| Zdroj: |
Journal of Physics D: Applied Physics; 10/21/2021, Vol. 54 Issue 42, p1-7, 7p |
| Abstrakt: |
Pressure sensors are widely used in intelligent systems. With the extension of application conditions, pressure sensors with energy-sustainable, large-area, and high-density are urgently needed to be designed. In this article, we proposed a polymer/metal Schottky junction structure to achieve flexible self-powered pressure sensors (SPSs), in which the Schottky junction has the capability of converting mechanical energy to direct current (DC) without external rectifier. The constructed pressure sensor holds a sandwich structure simply made up of an Au layer, a p-type semiconductor polypyrrole layer, and an Al layer. Test results show that this pressure sensor has the ability of self-power supply with output 0.79 V DC voltage which is almost independent of the area of pressure sensor, and has an outstanding output power density of 33.4 μW cm−2, a high response speed with 33 ms, and a good sensitivity of 0.0143 V kPa−1 in the pressure range of 0–60 kPa. Furthermore, it can sense both the dynamic and static forces. This work provides a simple but efficient method to develop SPSs, which show potentials in electronic skin with tactile function and artificial intelligence. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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