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Diphenylalanine Peptide Nanotube Energy Harvesters
- Diphenylalanine Peptide Nanotube Energy Harvesters
- Lee, Ju-Hyuck; Heo, Kwang; Schulz-Schönhagen, Konstantin; Lee, Ju Hun; Desai, Malav S.; Jin, Hyo-Eon; Lee, Seung-Wuk
- DGIST Authors
- Lee, Ju-Hyuck
- Issue Date
- ACS Nano, 12(8), 8138-8144
- Article Type
- Energy harvesting; Liquid crystal displays; Medical applications; Nanotubes; Peptides; Piezoelectric devices; Piezoelectricity; Self assembly; Vibrations (mechanical); Biomedical applications; Electrical energy; Energy Harvester; Liquid-crystal display panels; Peptide nanotubes; Piezoelectric energy harvesters; Piezoelectric property; Self assembly process; Yarn
- Piezoelectric materials are excellent generators of clean energy as they can harvest the ubiquitous vibrational and mechanical forces. We developed large-scale unidirectionally polarized, aligned diphenylalanine (FF) nanotubes and fabricated peptide-based piezoelectric energy harvesters. We first used the meniscus driven self-assembly process to fabricate horizontally aligned FF nanotubes. The FF nanotubes exhibit piezoelectric properties as well as unidirectional polarization. In addition, the asymmetric shapes of the self-assembled FF nanotubes enable them to effectively translate external axial forces into shear deformation to generate electrical energy. The fabricated peptide based piezoelectric energy harvesters can generate voltage, current and power of up to 2.8 V, 37.4 nA and 8.2 nW, respectively, with 42 N of force, and can power multiple liquid-crystal display panels. These peptide-based energy harvesting materials will provide a compatible energy source for biomedical applications in the future. © 2018 American Chemical Society.
- American Chemical Society
- Related Researcher
Energy Conversion Materials Engineering Laboratory
Energy Harvesting; Synthesis of Various Nano/Microstructured Energy Materials; Piezoelectric Generator; Triboelectric Generator; Bio-Compatible Energy Materials and Generator; Biomimetic Biomolecule based Energy Materials and Devices
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- Department of Energy Science and EngineeringEnergy Conversion Materials Engineering Laboratory1. Journal Articles
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