Lead iodide nanosheets for piezoelectric energy conversion and strain sensing
| Autor: | Minsong Wei, Liwei Lin, Ilbey Karakurt, Nathaniel Liu, Junwen Zhong, Huaibing Song, Yao Chu |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Strain (chemistry) Renewable Energy Sustainability and the Environment business.industry Nanogenerator 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Piezoelectricity 0104 chemical sciences Power (physics) Optoelectronics Energy transformation General Materials Science Electrical and Electronic Engineering 0210 nano-technology business Sensitivity (electronics) Energy harvesting Voltage |
| Zdroj: | Nano Energy. 49:7-13 |
| ISSN: | 2211-2855 |
| DOI: | 10.1016/j.nanoen.2018.04.029 |
| Popis: | Flexible piezoelectric devices are attractive for energy conversion and strain sensing applications, including in the area of wearable electronics and self-powered sensors. Here, we report a piezoelectric nanogenerator/strain sensor based on lead (II) iodide (PbI2) nanosheets with the shape of two-dimensional (2D) structures, of which the piezoelectricity is not affected by the number of layers. A typical 2D piezoelectric device fabricated with 3 layers PbI2 nanosheets has recorded peak values of open-circuit voltage, short-circuit current and loading power as 29.4 mV, 20 pA, and 0.12 pW, respectively, and also possess good charging and integration capabilities. Moreover, these devices can be applied as self-powered strain sensors, with high sensitivity and excellent stability. As such, this study provides new knowledge and strategy for flexible energy harvesting or strain sensing devices based on 2D structures. |
| Databáze: | OpenAIRE |
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