Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kockert, M. | ko |
dc.contributor.author | Mitdank, R. | ko |
dc.contributor.author | Moon, Hongjae | ko |
dc.contributor.author | Kim, Jeongmin | ko |
dc.contributor.author | Mogilatenko, A. | ko |
dc.contributor.author | Moosavi, S.H. | ko |
dc.contributor.author | Kroener, M. | ko |
dc.contributor.author | Woias, P. | ko |
dc.contributor.author | Lee, Wooyoung | ko |
dc.contributor.author | Fischer, S.F. | ko |
dc.date.accessioned | 2021-03-02T06:55:27Z | - |
dc.date.available | 2021-03-02T06:55:27Z | - |
dc.date.created | 2021-01-22 | - |
dc.date.issued | 2021-01 | - |
dc.identifier.citation | Nanoscale Advances, v.3, no.1, pp.263 - 271 | - |
dc.identifier.issn | 2516-0230 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/12949 | - |
dc.description.abstract | We demonstrate the full thermoelectric and structural characterization of individual bismuth-based (Bi-based) core/shell nanowires. The influence of strain on the temperature dependence of the electrical conductivity, the absolute Seebeck coefficient and the thermal conductivity of bismuth/titanium dioxide (Bi/TiO2) nanowires with different diameters is investigated and compared to bismuth (Bi) and bismuth/tellurium (Bi/Te) nanowires and bismuth bulk. Scattering at surfaces, crystal defects and interfaces between the core and the shell reduces the electrical conductivity to less than 5% and the thermal conductivity to less than 25% to 50% of the bulk value at room temperature. On behalf of a compressive strain, Bi/TiO2 core/shell nanowires show a decreasing electrical conductivity with decreasing temperature opposed to that of Bi and Bi/Te nanowires. We find that the compressive strain induced by the TiO2 shell can lead to a band opening of bismuth increasing the absolute Seebeck coefficient by 10% to 30% compared to bulk at room temperature. In the semiconducting state, the activation energy is determined to |41.3 ± 0.2| meV. We show that if the strain exceeds the elastic limit the semimetallic state is recovered due to the lattice relaxation. © The Royal Society of Chemistry. | - |
dc.language | English | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Semimetal to semiconductor transition in Bi/TiO2core/shell nanowires | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/d0na00658k | - |
dc.identifier.wosid | 000608482500019 | - |
dc.identifier.scopusid | 2-s2.0-85099130370 | - |
dc.type.local | Article(Overseas) | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.contributor.nonIdAuthor | Kockert, M. | - |
dc.contributor.nonIdAuthor | Mitdank, R. | - |
dc.contributor.nonIdAuthor | Moon, Hongjae | - |
dc.contributor.nonIdAuthor | Mogilatenko, A. | - |
dc.contributor.nonIdAuthor | Moosavi, S.H. | - |
dc.contributor.nonIdAuthor | Kroener, M. | - |
dc.contributor.nonIdAuthor | Woias, P. | - |
dc.contributor.nonIdAuthor | Lee, Wooyoung | - |
dc.contributor.nonIdAuthor | Fischer, S.F. | - |
dc.identifier.citationVolume | 3 | - |
dc.identifier.citationNumber | 1 | - |
dc.identifier.citationStartPage | 263 | - |
dc.identifier.citationEndPage | 271 | - |
dc.identifier.citationTitle | Nanoscale Advances | - |
dc.type.journalArticle | Article | - |
dc.description.isOpenAccess | Y | - |
dc.subject.keywordPlus | TRANSPORT-PROPERTIES | - |
dc.subject.keywordPlus | BISMUTH | - |
dc.subject.keywordPlus | STRAIN | - |
dc.contributor.affiliatedAuthor | Kim, Jeongmin | - |