Abstract
Flexible nanocomposite generators based on piezoelectric nanoparticles (NPs)-polymeric matrix have been attracted attention as the energy harvesting device converted the electricity from the mechanical deformations. To enhance the piezo-potential difference introduced inside the piezoelectric nanocomposite, one-dimensional nanostructures such as CNTs, copper nanorods, and Ag nanowires (NWs) should be used inevitably as a dispersing agent for achieving well-distributed piezoelectric nanoparticles in an elastomer. These non-piezoelectric additives showed versatile roles; however, their toxicity to living organism has been an obstacle to realize the bio-eco-friendly flexible energy harvesters. Replacing them with piezoelectric NWs with non-toxic can be a challengeable approach to achieve not only the original purposes of additives but also the improvement of output performance. Here, we synthesized well-crystallized BaTiO 3 spherical and acicular NPs via a simple hydrothermal reaction and the two-step hydrothermal reactions, respectively and produced piezoelectric nanocomposite made of piezoelectric BaTiO 3 NPs and NWs without toxic dispersion enhancers. Output performance of the fabricated flexible energy harvesters with varying the composition of NPs and NWs were investigated by the well-optimized measurement system during the periodical bending and unbending. A nanocomposite-based energy harvester with 4:1 wt ratio generated the maximum open-circuit voltage and short-circuit current of 60 V and 1.1 μA, respectively.
Original language | English |
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Pages (from-to) | 164-170 |
Number of pages | 7 |
Journal | Applied Surface Science |
Volume | 429 |
DOIs | |
State | Published - 31 Jan 2018 |
Keywords
- 0-Dim & 1-Dim nanoparticle
- BaTiO
- Energy harvesting
- Hydrothermal