Universality of the giant Seebeck effect in organic small molecules
| Autor: | Daiki Kuzuhara, Fumiya Fujiwara, Hirotaka Kojima, Mario Nakagawa, Ryo Abe, Ikeda Masaaki, Hidehiro Sakurai, Masakazu Nakamura, Hiroko Yamada, Hidenori Yakushiji, Yumi Yakiyama, Tatsuya Yamamoto, Kohtaro Takahashi |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Condensed matter physics 02 engineering and technology Activation energy Atmospheric temperature range 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Universality (dynamical systems) Organic semiconductor Electrical resistivity and conductivity Seebeck coefficient Thermoelectric effect Materials Chemistry General Materials Science Thin film 0210 nano-technology |
| Zdroj: | Materials Chemistry Frontiers. 2:1276-1283 |
| ISSN: | 2052-1537 |
| DOI: | 10.1039/c7qm00596b |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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