Hydrothermal method for the synthesis of Sb 2 Te 3 , and Bi 0.5 Sb 1.5 Te 3 nanoplates and their thermoelectric properties
Source abstract
Abstract
Abstract In this study, a modified hydrothermal method is reported for the preparation of Sb 2 Te 3 and Bi 0.5 Sb 1.5 Te 3 nanoplates and their bulk samples was prepared by spark plasma sintering ( SPS ). The crystal structure, morphology, and thermoelectric properties were investigated. The microstructure results indicate that the bulk samples consisted nanograins after SPS . The presence of nanograins, high Seebeck coefficient (181 μV/K), high electrical conductivity (763 Ω −1 cm −1 ), and low thermal conductivity (1.15 W/mK) has been achieved in Sb 2 Te 3 nanoplate bulk samples. As a result, the dimensionless thermoelectric figure of merit ( ZT ) of 0.55 at 400 K was achieved. Moreover, the peak ZT shifted to higher temperature compared with other reported results found in literature.
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Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Thermal Radiation and Cooling Technologies · Advanced Thermodynamics and Statistical Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Division of Advanced Materials Engineering Kongju National University Cheonan City Chungcheongnam‐do Korea
Funding
National Research Foundation of Korea · Ministry of Education, Science and Technology
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