Magneto-Seebeck effect in an ITO/PEDOT:PSS/Au thin-film device
Source abstract
Abstract
This article reports giant magnetic field effects on the Seebeck coefficient by exerting a Lorentz force on charge diffusion based on vertical multi-layer ITO/PEDOT:PSS/Au thin-film devices. The Lorentz force, induced by an external magnetic field, changes the charge transport and consequently generates angular dependent magnetoresistance. The proposed mechanism of the magneto-Seebeck effect is proved by measuring the magnetoresistance at a parallel, 45o and perpendicular angle to the temperature gradient. The gradual change of the magnetoresistance from a parallel to perpendicular angle indicates that the Lorentz force is a key driving force to develop the magneto-Seebeck effect. Therefore, our experimental results demonstrate a magnetic approach to control the thermoelectric properties in organic materials.
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Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Quantum and electron transport phenomena · Advanced Thermodynamics and Statistical Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Huazhong University of Science and Technology 1 Wuhan National Laboratory for Optoelectronics, , Wuhan 430074, China
University of Tennessee 2 Department of Materials Science and Engineering, , Knoxville, Tennessee 37996, USA
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