Design and fabrication of a stretchable triboelectric nanogenerator

Rapid advancements in flexible and wearable electronics have driven the demand for power sources that are soft and deformable. Recently, triboelectric nanogenerators (TENGs) have shown great potential as sustainable power sources for harvesting mechanical energy from human motion. However, the rigid...

Full description

Saved in:
Bibliographic Details
Main Author: Zhang, Ruo Qing
Other Authors: Lee Pooi See
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2021
Subjects:
Online Access:https://hdl.handle.net/10356/148006
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-148006
record_format dspace
spelling sg-ntu-dr.10356-1480062023-03-04T15:46:42Z Design and fabrication of a stretchable triboelectric nanogenerator Zhang, Ruo Qing Lee Pooi See School of Materials Science and Engineering PSLee@ntu.edu.sg Engineering::Materials Rapid advancements in flexible and wearable electronics have driven the demand for power sources that are soft and deformable. Recently, triboelectric nanogenerators (TENGs) have shown great potential as sustainable power sources for harvesting mechanical energy from human motion. However, the rigidity of traditional metal-based electrodes poses a challenge in the fabrication of stretchable TENGs. Moreover, the sharp rise in the resistance of these electrodes at high strains further limits the stretchability of the device. Conductive polymers are promising materials that can replace traditional metal electrodes. In particular, polypyrrole (PPy) is attractive because of its relatively high conductivity and environmental stability. In this work, Poly(vinyl alcohol)-Glycerol-Polypyrrole (PVA-Gly-PPy) solid and liquid electrodes were prepared through in situ chemical polymerization of pyrrole in the presence of PVA and glycerol. The use of PPy endowed the electrodes with high conductivity. The conductivity of PPy is known to arise from its π-conjugated backbone and through doping. Here, FeCl3 was used as the oxidant. PVA was used as the matrix material to blend with PPy and to impart mechanical strength. Additionally, the polymer matrix provides the network for electron and ion transport. Glycerol was used as the plasticizer to improve stretchability and stability of the electrodes. The thermal, mechanical and electrical properties of the electrodes were studied and analyzed. Finally, the solid electrode-based TENG (SE-TENG) and liquid electrode-based TENG (LE-TENG) in the single electrode mode were fabricated and the output performance of the TENGs were evaluated and compared. Both the TENGs could successfully harvest mechanical energy from human motion, even under strain. Bachelor of Engineering (Materials Engineering) 2021-04-29T00:59:48Z 2021-04-29T00:59:48Z 2021 Final Year Project (FYP) Zhang, R. Q. (2021). Design and fabrication of a stretchable triboelectric nanogenerator. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/148006 https://hdl.handle.net/10356/148006 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
spellingShingle Engineering::Materials
Zhang, Ruo Qing
Design and fabrication of a stretchable triboelectric nanogenerator
description Rapid advancements in flexible and wearable electronics have driven the demand for power sources that are soft and deformable. Recently, triboelectric nanogenerators (TENGs) have shown great potential as sustainable power sources for harvesting mechanical energy from human motion. However, the rigidity of traditional metal-based electrodes poses a challenge in the fabrication of stretchable TENGs. Moreover, the sharp rise in the resistance of these electrodes at high strains further limits the stretchability of the device. Conductive polymers are promising materials that can replace traditional metal electrodes. In particular, polypyrrole (PPy) is attractive because of its relatively high conductivity and environmental stability. In this work, Poly(vinyl alcohol)-Glycerol-Polypyrrole (PVA-Gly-PPy) solid and liquid electrodes were prepared through in situ chemical polymerization of pyrrole in the presence of PVA and glycerol. The use of PPy endowed the electrodes with high conductivity. The conductivity of PPy is known to arise from its π-conjugated backbone and through doping. Here, FeCl3 was used as the oxidant. PVA was used as the matrix material to blend with PPy and to impart mechanical strength. Additionally, the polymer matrix provides the network for electron and ion transport. Glycerol was used as the plasticizer to improve stretchability and stability of the electrodes. The thermal, mechanical and electrical properties of the electrodes were studied and analyzed. Finally, the solid electrode-based TENG (SE-TENG) and liquid electrode-based TENG (LE-TENG) in the single electrode mode were fabricated and the output performance of the TENGs were evaluated and compared. Both the TENGs could successfully harvest mechanical energy from human motion, even under strain.
author2 Lee Pooi See
author_facet Lee Pooi See
Zhang, Ruo Qing
format Final Year Project
author Zhang, Ruo Qing
author_sort Zhang, Ruo Qing
title Design and fabrication of a stretchable triboelectric nanogenerator
title_short Design and fabrication of a stretchable triboelectric nanogenerator
title_full Design and fabrication of a stretchable triboelectric nanogenerator
title_fullStr Design and fabrication of a stretchable triboelectric nanogenerator
title_full_unstemmed Design and fabrication of a stretchable triboelectric nanogenerator
title_sort design and fabrication of a stretchable triboelectric nanogenerator
publisher Nanyang Technological University
publishDate 2021
url https://hdl.handle.net/10356/148006
_version_ 1759857642944069632