Measurement System to Determine the Seebeck Coefficient and Electrical Conductivity of Thin Films
Thermoelectric (TE) materials are promising for energy-generating devices, and their design depends on a fast, precise determination of their Seebeck coefficient and electrical conductivity. Herein, a low-cost setup was developed to determine the Seebeck coefficient and electrical conductivity of th...
| Authors: | , , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2025 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/389617 |
| Online Access: | http://hdl.handle.net/10261/389617 https://api.elsevier.com/content/abstract/scopus_id/105002494259 |
| Access Level: | Open access |
| Keyword: | Electrical conductivity Instrumentation Measurement system Power factor (PF) Seebeck coefficient Thermoelectricity |
| Summary: | Thermoelectric (TE) materials are promising for energy-generating devices, and their design depends on a fast, precise determination of their Seebeck coefficient and electrical conductivity. Herein, a low-cost setup was developed to determine the Seebeck coefficient and electrical conductivity of thin films, allowing the calculation of the power factor (PF) (PF = S2σ) . The system was validated by measuring the Seebeck coefficient and electrical conductivity of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), a widely used material in organic electronics and TE generators. The results demonstrate the high resolution of our system, with obtained values of 0.1 µV/K for Seebeck coefficient, 0.1 S/cm for electrical conductivity, and 0.1 µW/K2 for PF. A detailed description of the fabrication of the measurement setup is provided, with the aim of making thermoelectricity accessible to any research laboratory, even in places with limited budgets. |
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