dc.contributor.advisor |
Partridge, A |
en |
dc.contributor.advisor |
Nguang, S |
en |
dc.contributor.author |
Chen, Linda |
en |
dc.date.accessioned |
2014-03-03T23:04:41Z |
en |
dc.date.issued |
2014 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/21786 |
en |
dc.description |
Full text is available to authenticated members of The University of Auckland only. |
en |
dc.description.abstract |
Due to the advanced mobile technology developed, the demand for mobile chargers for handheld devices such as smart phones or tablets grows dramatically. However, most mobile chargers today require energy sources such as solar energy, which cannot be utilized in cloudy day or at night. Therefore, chargers powered by Thermoelectric generators (TEG) using human body heat would be a good alternative. Study and development of TEG have been the focus of many research group since the discovery of the Seebeck effect in 1822. Commercialized products with bulk inorganic material such as Bi2Te3 have been the main stream. The main drawback however, is the high cost fabrication and toxic gas released during fabrication. The organic TEG (OTEG) fabricated with organic polymers provides a good alternative for TEG charger due to its low cost environmental friendly fabrication process, and the ability for material regeneration. The breakthrough of PEDOT:Tos performance (ZT=0.25 at room temperature) in 2011 made the research in OTEG even more popular. The breakthrough, however, had the OTEG fabricated on glass, which makes it difficult in mass production and gets removed easily during water rinsing process, resulting in extra fabrication process, such as applying a buffer layer in between, need to be carried out In this research, PEDOT:Tos was fabricated on PMMA for better adhesion to the substrat without additional treatments which will allow the possibility of mass production in future. Low temperature (under 100 °C) fabrication process was used due to PMMA's low glass transition temperature. Reduction of PEDOT:Tos was done in the vacuum desiccators with minimum consumption of nitrogen gas. The results show that the adhesion between PEDOT:Tos thin film and substrate (PMMA) is significantly enhanced. The performance of PEDOT:Tos was measured and characterized. The final device was assembled and characterized with TTF-TCNQ/PVC film as the n type material. The figure of merit of the device can reach up to 0.13 at 40 °C. Possibility of operating the same TEG up to 80 °C was investigated, but the thin film start to degrade at elevated temperature and the reduced PEDOT:Tos gets oxidized much faster at 80 °C. |
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dc.publisher |
ResearchSpace@Auckland |
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dc.relation.ispartof |
Masters Thesis - University of Auckland |
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dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
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dc.rights |
Restricted Item. Available to authenticated members of The University of Auckland. |
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dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.rights.uri |
http://creativecommons.org/licenses/by-nc-sa/3.0/nz/ |
en |
dc.title |
Organic Thermoelectric Device on PMMA substrates with P-type material PEDOT:Tos |
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dc.type |
Thesis |
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thesis.degree.grantor |
The University of Auckland |
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thesis.degree.level |
Masters |
en |
dc.rights.holder |
Copyright: The Author |
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pubs.author-url |
http://hdl.handle.net/2292/21786 |
en |
pubs.elements-id |
429718 |
en |
pubs.record-created-at-source-date |
2014-03-04 |
en |
dc.identifier.wikidata |
Q112904791 |
|