Lead-free and flexible piezoelectric nanogenerator based on CaBi4Ti4O15 Aurivillius oxides/ PDMS composites for efficient biomechanical energy harvesting
| Autor: | Sugato Hajra, Manisha Sahu, Hoe Joon Kim, Dongik Oh |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Composite number 02 engineering and technology 01 natural sciences law.invention Aurivillius law 0103 physical sciences Materials Chemistry Perovskite (structure) 010302 applied physics biology business.industry Process Chemistry and Technology Poling Nanogenerator 021001 nanoscience & nanotechnology biology.organism_classification Piezoelectricity Surfaces Coatings and Films Electronic Optical and Magnetic Materials Capacitor Ceramics and Composites Optoelectronics 0210 nano-technology business Energy harvesting |
| Zdroj: | Ceramics International. 47:15695-15702 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2021.02.140 |
| Popis: | The development of a new class of perovskite materials and enhancing its capability as an energy harvester that scavenges energy from various sources to power electronics systems has attracted significant attention. Herein, we report a cost-effective approach to synthesize a perovskite material, explore its properties, and further develop a high-performance flexible nanogenerator based on hybrid piezoelectric composite. The Aurivillius-based oxide, CaBi4Ti4O15 (CBTO) was fabricated via a mixed oxide reaction and crystallized in an orthorhombic symmetry at room temperature. The material properties were elucidated to act as a parallel plate capacitor that will further act as a base for the development of filter circuits. Aurivillus/PDMS composite films were used to fabricate a flexible Aurivillus-based piezoelectric nanogenerator (A-PENG) to act as a self-powered exercise counter and power the electronics. The A-PENG was systematically analyzed under different conditions such as weight percentage, before and after poling, and acceleration effects. In addition, device stability, and capacitor charging-discharging tests were performed. This study elucidated the formation of lead-free ceramic materials that were used to make a flexible composite film for the realization of a piezoelectric harvester acting as a sustainable energy source. |
| Databáze: | OpenAIRE |
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