Material Optimization for a High Power Thermoelectric Generator in Wearable Applications

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dc.contributor.authorLee, Gyusoupko
dc.contributor.authorChoi, Garamko
dc.contributor.authorKim, Choong Sunko
dc.contributor.authorKim, Yongjunko
dc.contributor.authorChoi, Hyeongdoko
dc.contributor.authorKim, Seonghoko
dc.contributor.authorKim, Hyo Seokko
dc.contributor.authorLee, Won Boko
dc.contributor.authorCho, Byung Jinko
dc.date.accessioned2017-11-21T04:07:07Z-
dc.date.available2017-11-21T04:07:07Z-
dc.date.created2017-11-20-
dc.date.created2017-11-20-
dc.date.issued2017-10-
dc.identifier.citationAPPLIED SCIENCES-BASEL, v.7, no.10-
dc.identifier.issn2076-3417-
dc.identifier.urihttp://hdl.handle.net/10203/227213-
dc.description.abstractThermoelectric power generation using human body heat can be applied to wearable sensors, and various applications are possible. Because the thermoelectric generator (TEG) is highly dependent on the thermoelectric material, research on improving the performance of the thermoelectric material has been conducted. Thus far, in developing thermoelectric materials, the researchers have focused on improving the figure of merit, ZT. For a TEG placed on the human body, however, the power density does not always increase as the material ZT increases. In this study, the material properties and ZT of P-type BiSbTe3 were simulated for carrier concentration ranging from 3 x 1017 to 3 x 1020 cm(3), and the power density of a TEG fabricated from the material dataset was calculated using a thermoelectric resistance model for human body application. The results revealed that the maximum ZT and the maximum power density were formed at different carrier concentrations. The material with maximum ZT showed 28.8% lower power density compared to the maximum obtainable power density. Further analysis confirmed that the mismatch in the optimum carrier concentration for the maximum ZT and maximum power density can be minimized when a material with lower thermal conductivity is used in a TEG. This study shows that the ZT enhancement of materials is not the highest priority in the production of a TEG for human body application, and material engineering to lower the thermal conductivity is required to reduce the optimum point mismatch problem.-
dc.languageEnglish-
dc.publisherMDPI AG-
dc.subjectHUMAN-BODY HEAT-
dc.subjectALLOYS-
dc.subjectSB2TE3-
dc.titleMaterial Optimization for a High Power Thermoelectric Generator in Wearable Applications-
dc.typeArticle-
dc.identifier.wosid000414457800053-
dc.identifier.scopusid2-s2.0-85030650378-
dc.type.rimsART-
dc.citation.volume7-
dc.citation.issue10-
dc.citation.publicationnameAPPLIED SCIENCES-BASEL-
dc.identifier.doi10.3390/app7101015-
dc.contributor.localauthorCho, Byung Jin-
dc.contributor.nonIdAuthorLee, Gyusoup-
dc.contributor.nonIdAuthorChoi, Garam-
dc.contributor.nonIdAuthorKim, Seongho-
dc.contributor.nonIdAuthorKim, Hyo Seok-
dc.contributor.nonIdAuthorLee, Won Bo-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorthermoelectric generator-
dc.subject.keywordAuthorhuman body heat-
dc.subject.keywordAuthordevice simulation-
dc.subject.keywordAuthorfirst-principles calculation-
dc.subject.keywordAuthormaterial engineering-
dc.subject.keywordPlusHUMAN-BODY HEAT-
dc.subject.keywordPlusALLOYS-
dc.subject.keywordPlusSB2TE3-
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