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- Publisher Website: 10.1021/am507032e
- Scopus: eid_2-s2.0-84921266962
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Article: Enhanced thermoelectric performance of PEDOT:PSS flexible bulky papers by treatment with secondary dopants
Title | Enhanced thermoelectric performance of PEDOT:PSS flexible bulky papers by treatment with secondary dopants |
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Authors | |
Keywords | PEDOT:PSS conductive polymer power factor flexible thermoelectrics Seebeck coefficient conductivity enhancement |
Issue Date | 2015 |
Citation | ACS Applied Materials and Interfaces, 2015, v. 7, n. 1, p. 94-100 How to Cite? |
Abstract | For inorganic thermoelectric materials, Seebeck coefficient and electrical conductivity are interdependent, and hence optimization of thermoelectric performance is challenging. In this work we show that thermoelectric performance of PEDOT:PSS can be enhanced by greatly improving its electrical conductivity in contrast to inorganic thermoelectric materials. Free-standing flexible and smooth PEDOT:PSS bulky papers were prepared using vacuum-assisted filtration. The electrical conductivity was enhanced to 640, 800, 1300, and 1900 S cm by treating PEDOT:PSS with ethylene glycol, polyethylene glycol, methanol, and formic acid, respectively. The Seebeck coefficient did not show significant variation with the tremendous conductivity enhancement being 21.4 and 20.6 μV K for ethylene glycol- and formic acid-treated papers, respectively. This is because secondary dopants, which increase electrical conductivity, do not change oxidation level of PEDOT. A maximum power factor of 80.6 μW m K was shown for formic acid-treated samples, while it was only 29.3 μW m K for ethylene glycol treatment. Coupled with intrinsically low thermal conductivity of PEDOT:PSS, ZT 0.32 was measured at room temperature using Harman method. We investigated the reasons behind the greatly enhanced thermoelectric performance. -1 -1 -1 -2 -1 -2 |
Persistent Identifier | http://hdl.handle.net/10722/298105 |
ISSN | 2023 Impact Factor: 8.3 2023 SCImago Journal Rankings: 2.058 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Mengistie, Desalegn A. | - |
dc.contributor.author | Chen, Chang Hsiao | - |
dc.contributor.author | Boopathi, Karunakara M. | - |
dc.contributor.author | Pranoto, Ferry W. | - |
dc.contributor.author | Li, Lain Jong | - |
dc.contributor.author | Chu, Chih Wei | - |
dc.date.accessioned | 2021-04-08T03:07:41Z | - |
dc.date.available | 2021-04-08T03:07:41Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | ACS Applied Materials and Interfaces, 2015, v. 7, n. 1, p. 94-100 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10722/298105 | - |
dc.description.abstract | For inorganic thermoelectric materials, Seebeck coefficient and electrical conductivity are interdependent, and hence optimization of thermoelectric performance is challenging. In this work we show that thermoelectric performance of PEDOT:PSS can be enhanced by greatly improving its electrical conductivity in contrast to inorganic thermoelectric materials. Free-standing flexible and smooth PEDOT:PSS bulky papers were prepared using vacuum-assisted filtration. The electrical conductivity was enhanced to 640, 800, 1300, and 1900 S cm by treating PEDOT:PSS with ethylene glycol, polyethylene glycol, methanol, and formic acid, respectively. The Seebeck coefficient did not show significant variation with the tremendous conductivity enhancement being 21.4 and 20.6 μV K for ethylene glycol- and formic acid-treated papers, respectively. This is because secondary dopants, which increase electrical conductivity, do not change oxidation level of PEDOT. A maximum power factor of 80.6 μW m K was shown for formic acid-treated samples, while it was only 29.3 μW m K for ethylene glycol treatment. Coupled with intrinsically low thermal conductivity of PEDOT:PSS, ZT 0.32 was measured at room temperature using Harman method. We investigated the reasons behind the greatly enhanced thermoelectric performance. -1 -1 -1 -2 -1 -2 | - |
dc.language | eng | - |
dc.relation.ispartof | ACS Applied Materials and Interfaces | - |
dc.subject | PEDOT:PSS | - |
dc.subject | conductive polymer | - |
dc.subject | power factor | - |
dc.subject | flexible thermoelectrics | - |
dc.subject | Seebeck coefficient | - |
dc.subject | conductivity enhancement | - |
dc.title | Enhanced thermoelectric performance of PEDOT:PSS flexible bulky papers by treatment with secondary dopants | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1021/am507032e | - |
dc.identifier.scopus | eid_2-s2.0-84921266962 | - |
dc.identifier.volume | 7 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 94 | - |
dc.identifier.epage | 100 | - |
dc.identifier.eissn | 1944-8252 | - |
dc.identifier.isi | WOS:000348085200013 | - |
dc.identifier.issnl | 1944-8244 | - |