完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.author | Mengistie, Desalegn A. | en_US |
dc.contributor.author | Chen, Chang-Hsiao | en_US |
dc.contributor.author | Boopathi, Karunakara M. | en_US |
dc.contributor.author | Pranoto, Ferry W. | en_US |
dc.contributor.author | Li, Lain-Jong | en_US |
dc.contributor.author | Chu, Chih-Wei | en_US |
dc.date.accessioned | 2015-07-21T08:28:46Z | - |
dc.date.available | 2015-07-21T08:28:46Z | - |
dc.date.issued | 2015-01-14 | en_US |
dc.identifier.issn | 1944-8244 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1021/am507032e | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/124381 | - |
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(-1) 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 mu V K-1 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 mu W m(-1) K-2 was shown for formic acid-treated samples, while it was only 29.3 mu W m(-1) K-2 for ethylene glycol treatment. Coupled with intrinsically low thermal conductivity of PEDOT:PSS, ZT approximate to 0.32 was measured at room temperature using Harman method. We investigated the reasons behind the greatly enhanced thermoelectric performance. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | PEDOT:PSS | en_US |
dc.subject | conductivity enhancement | en_US |
dc.subject | flexible thermoelectrics | en_US |
dc.subject | Seebeck coefficient | en_US |
dc.subject | power factor | en_US |
dc.subject | conductive polymer | en_US |
dc.title | Enhanced Thermoelectric Performance of PEDOT:PSS Flexible Bulky Papers by Treatment with Secondary Dopants | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1021/am507032e | en_US |
dc.identifier.journal | ACS APPLIED MATERIALS & INTERFACES | en_US |
dc.citation.spage | 94 | en_US |
dc.citation.epage | 100 | en_US |
dc.contributor.department | 光電工程學系 | zh_TW |
dc.contributor.department | Department of Photonics | en_US |
dc.identifier.wosnumber | WOS:000348085200013 | en_US |
dc.citation.woscount | 1 | en_US |
顯示於類別: | 期刊論文 |