Studies on the thermoelectric properties of PEDOT:PSS

2014 Fiscal Year Final Research Report

• Project/Area Number: 25888025
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Device related chemistry
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: WEI Qingshuo 独立行政法人産業技術総合研究所, 材料・化学領域 ナノ材料研究部門, 研究員 (30709564)
• Project Period (FY): 2013-08-30 – 2015-03-31
• Keywords: 有機半導体 / 熱電変換 / 異方性

Outline of Final Research Achievements

In this study, we reported general methods for studying the thermoelectric properties of a polymer film in both the in-plane and through-plane directions. The bench-mark PEDOT:PSS films have highly anisotropic carrier transport properties and thermal conductivity. The anisotropic carrier transport properties and thermal conductivity can be explained by the lamellar structure of the PEDOT:PSS films where the PEDOT nanocrystals could be isolated by the insulating PSS in the through-plane direction. This study highlights the parameters for figure-of-merit calculation in organic thermoelectric materials must be obtained on the same direction.

Free Research Field

応用化学