| 研究課題/領域番号 |
25888025
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| 研究種目 |
研究活動スタート支援
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| 研究機関 | 独立行政法人産業技術総合研究所 |
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研究代表者 |
衛 慶碩 独立行政法人産業技術総合研究所, ナノシステム研究部門, 研究員 (30709564)
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| 研究期間 (年度) |
2013-08-30 – 2015-03-31
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| キーワード | Anisotropic / Organic Semiconductors / Thermal Conductivity / Seebeck Coefficient / Electrical Conductivity |
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| 研究概要 |
In this study, we have developed general approaches to study the anisotropic thermoelectric properties of conducting polymer films. The Seebeck coefficient, electrical conductivity and thermal conductivity at both through-plane and in-plane directions can be measured with high accuracy. The bench-mark conducting polymer PEDOT:PSS was used as an example here. This study suggested PEDOT:PSS films have an anisotropic carrier transport properties and thermal conductivity. The anisotropic carrier transport properties can be explained by the lamellar structure of the PEDOT:PSS films. The anisotropic thermal conductivity could be attributed to the lattice contribution from PSS since the polymer chain is oriented along the substrate.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The study on the through-plane Seebeck coefficient and through-plane four probe conductivity measurement take some time. The reliable set-up is modified for several times.
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| 今後の研究の推進方策 |
We will try to further improve the thermometric properties of conducting polymers based our current results. One straight forward approach is to reduce the in-plane thermal conductivity by using a small molecule dopant.Another possible approach is trying to achieve optimized power factor through the controlling of PEDOT crystal orientations by controlling the film formation conditions.
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