Journal
NANO ENERGY
Volume 71, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2020.104632
Keywords
Electronic skin; Photovoltaic effect; Piezoelectric effect; Pyroelectric effect
Categories
Funding
- National Key R&D Program of China [2016YFA0202701]
- National Natural Science Foundation of China [51472055]
- External Cooperation Program of BIC, Chinese Academy of Sciences [121411KYS820150028]
- 2015 Annual Beijing Talents Fund [2015000021223ZK32]
- Qingdao National Laboratory for Marine Science and Technology [2015ASKJ01]
- University of Chinese Academy of Sciences [Y8540XX2D2]
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The simultaneous monitoring of multi-physical signals is essential for future sensor systems, but is currently only realized by integrating a variety of sensor types into a single device. However, the ability to use a single sensor structure that shares common electrodes can provide a route to multi-functional sensing while also decreasing device size and increasing spatial resolution. Here we report a ferroelectric barium titanate film-based multi-effect coupled nanogenerator for scavenging light, mechanical, and thermal energies to realize a self-powered multi-functional coupled sensor system without using any external power source. The coupled nanogenerator exhibits a strong coupling enhancement with detection sensitivities of 0.42 nA/(mW/cm(2)) during illumination by 405 nm light, 1.43 nA/kPa for pressure detection, and -8.85 nA/K for temperature sensing, where both the light and pressure sensing performances have the highest sensitivities during a cooling temperature variation of similar to 19.5 K and the largest temperature detection sensitivity can be achieved during strong light illumination of 83.2 mW/cm(2). Moreover, the coupled nanogenerator array can be integrated into flexible forms for tactile pressure, temperature, and light sensors, and enabling coupled sensing for the development of electronic skins.
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