2014 Fiscal Year Annual Research Report
Studies on the thermoelectric properties of PEDOT:PSS
| Project/Area Number |
25888025
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
衛 慶碩 独立行政法人産業技術総合研究所, ナノ材料研究部門, 研究員 (30709564)
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Keywords | Conducting Polymer / Anisotropicity / Thermoelectric |
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| Outline of Annual Research Achievements |
For most organic semiconductors, it is difficult to make a dense block with millimeter scales, and therefore a common approach to characterize organic thermoelectric materials is making a thin film and studying the in-plane electrical conductivity, the in-plane Seebeck coefficient and the through-plane thermal conductivity. It is important to note that one feature of the organic semiconductors is the preferred molecular orientations during film formation, which could make an anisotropic film. In this year, we developed the general approaches to study the thermoelectric properties of a polymer film at both in-plane and through-plane directions. We have shown that the bench-mark PEDOT/PSS films have an anisotropic carrier transport properties and thermal conductivity. The anisotropicity can be explained by the lamellar structure of the PEDOT:PSS films where the PEDOT nanocrystals could be isolated by the insulating PSS at the through-plane direction.
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| Research Progress Status |
26年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
26年度が最終年度であるため、記入しない。
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