DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, MS | - |
dc.contributor.author | Song, JH | - |
dc.contributor.author | Medvedeva, JE | - |
dc.contributor.author | Kim, M | - |
dc.contributor.author | Kim, IG | - |
dc.contributor.author | Freeman, AJ | - |
dc.date.accessioned | 2015-06-25T03:07:04Z | - |
dc.date.available | 2015-06-25T03:07:04Z | - |
dc.date.created | 2010-12-07 | - |
dc.date.issued | 2010-04-15 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.other | 2015-OAK-0000022410 | en_US |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/12232 | - |
dc.description.abstract | Thermoelectric transport properties (Seebeck coefficient, S, and electrical conductivity, sigma) of p-type Bi and Sb tellurides are investigated using a first-principles all-electron density-functional approach. We demonstrate that the carrier concentration, band gap, and lattice constants have an important influence on the temperature behavior of S and that the volume expansion by 5.5% in Sb(2)Te(3) results in an increase in S by 33 mu V/K at 300 K. We argue that in addition to the electronic structure characteristics, the volume also affects the value of S and hence should be considered as an origin of the experimental observations that S can be enhanced by doping Sb(2)Te(3) with Bi (which has a larger ionic size) in Sb sites or by the deposition of thick Bi(2)Te(3) layers alternating with thinner Sb(2)Te(3) layers in a superlattice, Bi(2)Te(3)/Sb(2)Te(3). We show that the optimal carrier concentration for the best power factor of Bi(2)Te(3) and Sb(2)Te(3) is approximately 10(19) cm(-3). | - |
dc.description.statementofresponsibility | open | en_US |
dc.language | English | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.relation.isPartOf | PHYSICAL REVIEW B | - |
dc.rights | BY_NC_ND | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.0/kr | en_US |
dc.title | Electronic structure and volume effect on thermoelectric transport in p-type Bi and Sb tellurides | - |
dc.type | Article | - |
dc.contributor.college | 철강대학원 | en_US |
dc.identifier.doi | 10.1103/PHYSREVB.81.155211 | - |
dc.author.google | Park, MS | en_US |
dc.author.google | Song, JH | en_US |
dc.author.google | Freeman, AJ | en_US |
dc.author.google | Kim, IG | en_US |
dc.author.google | Kim, M | en_US |
dc.author.google | Medvedeva, JE | en_US |
dc.relation.volume | 81 | en_US |
dc.relation.issue | 15 | en_US |
dc.relation.journal | PHYSICAL REVIEW B | en_US |
dc.relation.index | SCI급, SCOPUS 등재논문 | en_US |
dc.relation.sci | SCI | en_US |
dc.collections.name | Journal Papers | en_US |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.81, no.15 | - |
dc.identifier.wosid | 000277210500066 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.number | 15 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 81 | - |
dc.contributor.affiliatedAuthor | Kim, IG | - |
dc.identifier.scopusid | 2-s2.0-77955344262 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 43 | - |
dc.description.scptc | 43 | * |
dc.date.scptcdate | 2018-10-274 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | PLANE-WAVE METHOD | - |
dc.subject.keywordPlus | BISMUTH TELLURIDE | - |
dc.subject.keywordPlus | BI2TE3 | - |
dc.subject.keywordPlus | CRYSTALS | - |
dc.subject.keywordPlus | MERIT | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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