Improvement of Thermoelectric Properties of PEDOT/PSS Films by Addition of Gold Nanoparticles: Enhancement of Seebeck Coefficient

• Published in: Journal of electronic materials Vol. 42; no. 7; pp. 1882 - 1887
• Main Authors: Toshima, Naoki, Jiravanichanun, Nattha
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Boston Springer US 01.07.2013; Springer; Springer Nature B.V
• Subjects: Alternative energy sources; Characterization and Evaluation of Materials; Chemistry and Materials Science; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Conductivity phenomena in semiconductors and insulators; Cross-disciplinary physics: materials science; rheology; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Electronic transport in condensed matter; Electronic transport phenomena in thin films and low-dimensional structures; Electronics and Microelectronics; Exact sciences and technology; Gold; Instrumentation; Materials Science; Nanoparticles; Nanoscale materials and structures: fabrication and characterization; Optical and Electronic Materials; Other topics in nanoscale materials and structures; Physics; Semiconductor research; Solid State Physics; Thermoelectric and thermomagnetic effects; Thermoelectric effects; Japan; Organic thermoelectric materials; Seebeck coefficient; Au nanoparticles; PEDOT/PSS; hybrid film; Gold; Chain length; Hybrid material; Seebeck effect; Thermoelectric properties; Thin films; Nanoparticles; Thermoelectric materials; Thiophene derivative polymer; Thiophene polymer; Carrier density; Nanostructured materials
• ISSN: 0361-5235; 1543-186X
• DOI: 10.1007/s11664-012-2458-y

Thermoelectric properties of hybrid films composed of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) and gold nanoparticles (AuNPs) stabilized with 3-mercaptopropinoic acid (Au-MPA NPs) and 6-mercaptohexanoic acid (Au-MHA NPs) were investigated. Several factors such as the size and content of the AuNPs, and the chain length of the NP stabilizer were found to influence the thermoelectric properties of the hybrid film. The Seebeck coefficient can be raised by varying the size of the Au-MPA NPs or the content of Au-MHA NPs. The enhancement in the Seebeck coefficient is suggested to be a result of reduced carrier concentration due to the increased number of AuNPs. This could be the first report on the fact that AuNPs enhance the Seebeck coefficient in PEDOT/PSS hybrid films.