Issue 7, 2018

Universality of the giant Seebeck effect in organic small molecules

Abstract

To explore the universality of the giant Seebeck coefficient (>100 mV K−1) found in our previous study with pure C60 thin films, the thermoelectric properties of high-mobility small-molecule organic semiconductors and their temperature dependencies are investigated. Consequently, various pure organic semiconductors exhibited similar large Seebeck coefficients within the temperature range of 300–360 K. The magnitude of the Seebeck coefficient, its intense temperature dependence, and correlation with the activation energy of electrical conductivity are unique and cannot be elucidated by currently known physical models of thermoelectricity.

Graphical abstract: Universality of the giant Seebeck effect in organic small molecules

Supplementary files

Article information

Article type
Research Article
Submitted
16 Dec 2017
Accepted
21 Feb 2018
First published
22 Feb 2018

Mater. Chem. Front., 2018,2, 1276-1283

Universality of the giant Seebeck effect in organic small molecules

H. Kojima, R. Abe, F. Fujiwara, M. Nakagawa, K. Takahashi, D. Kuzuhara, H. Yamada, Y. Yakiyama, H. Sakurai, T. Yamamoto, H. Yakushiji, M. Ikeda and M. Nakamura, Mater. Chem. Front., 2018, 2, 1276 DOI: 10.1039/C7QM00596B

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