Potential-current co-adjusted pulse electrodeposition for highly (110)-oriented Bi2Te3-xSex films
DC Field | Value | Language |
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dc.contributor.author | Kim, Jiwon | - |
dc.contributor.author | Lee, Kyu Hyoung | - |
dc.contributor.author | Kim, Sung Wng | - |
dc.contributor.author | Lim, Jae-Hong | - |
dc.date.available | 2020-06-16T04:35:45Z | - |
dc.date.created | 2020-06-16 | - |
dc.date.issued | 2019-05 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/53887 | - |
dc.description.abstract | Controllable crystal orientation is necessary to obtain high thermoelectric performance in thin films of Bi2Te3 alloys. In the present study, highly (110)-oriented thin films of n-type Bi2Te3-xSex with improved composition controllability are prepared through a simple electrodeposition-based process. Using potential-current co-adjusted pulse electrodeposition (PCP-ED) with adjustments to the zero current during the off-time period enables the fabrication of dense Bi2Te3-xSex thin films with highly (110)-oriented grains by minimizing the ionic gradient (Bi3+, Te2-, Se2-) between the substrate and solution. The power factor of the PCP-ED thin film was much higher than that of the dendritic Bi2Te3-xSex thin film fabricated by constant-potentiostatic electrodeposition (C-ED) because of the simultaneous enhancement of electrical conductivity and Seebeck coefficient. The high power factor of similar to 1920 mu W/m.K-2, which is the best value among reported n-type Bi2Te3-based thin films, was obtained at room temperature after low-temperature annealing at 200 degrees C by exploiting the crystallinity enhancement and carrier concentration optimization. (C) 2019 Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.title | Potential-current co-adjusted pulse electrodeposition for highly (110)-oriented Bi2Te3-xSex films | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000462592500088 | - |
dc.identifier.doi | 10.1016/j.jallcom.2019.01.301 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ALLOYS AND COMPOUNDS, v.787, pp.767 - 771 | - |
dc.description.isOpenAccess | N | - |
dc.citation.endPage | 771 | - |
dc.citation.startPage | 767 | - |
dc.citation.title | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.citation.volume | 787 | - |
dc.contributor.affiliatedAuthor | Lim, Jae-Hong | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Thermoelectric | - |
dc.subject.keywordAuthor | Bi2Te3 | - |
dc.subject.keywordAuthor | Thin film | - |
dc.subject.keywordAuthor | Crystal orientation | - |
dc.subject.keywordAuthor | Electrodeposition | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | DEPOSITION | - |
dc.subject.keywordPlus | LAYERS | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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