Triboelectric Charge-Driven Enhancement of the Output Voltage of BiSbTe-Based Thermoelectric Generators
Source abstract
Abstract
A new approach to increasing the output voltage of a thermoelectric generator that does not involve material modification is demonstrated. The key component of the device is a dielectric layer and a metal layer with an air gap between them, attached at the cold side of a thermoelectric generator with a Cu/p-type BiSbTe/Au/Cr/SiO2/Si composition. When the two layers contact each other, negative charges are created on the dielectric surface, causing the electric potential difference across the two electrodes to increase, supported by density functional theory. An output voltage of ∼1.2 mV in a single BiSbTe TE leg is generated with an increase of 0.4 mV under a compressive force of 5 N. Finally, an active cooling system consisting of a small pinwheel is fabricated, and the output voltage is increased by the wind without a significant reduction in the wind speed through the pinwheel.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Advanced Sensor and Energy Harvesting Materials · Innovative Energy Harvesting Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
Funding
National Research Foundation of Korea · Ministry of Trade, Industry and Energy
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