DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoo, Youngdong | ko |
dc.contributor.author | Kim, Si-in | ko |
dc.contributor.author | Kim, Jihwan | ko |
dc.contributor.author | Kim, Bongsoo | ko |
dc.date.accessioned | 2020-04-22T03:20:09Z | - |
dc.date.available | 2020-04-22T03:20:09Z | - |
dc.date.created | 2020-04-21 | - |
dc.date.created | 2020-04-21 | - |
dc.date.created | 2020-04-21 | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | NANOSCALE, v.12, no.11, pp.6537 - 6544 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://hdl.handle.net/10203/273978 | - |
dc.description.abstract | Freestanding epitaxial metal nanoplates can be utilized as advanced three-dimensional platforms for various novel applications. Here we report the vapor-phase epitaxial growth of freestanding Pd, AuPd, and Au nanoplates on an a-cut sapphire substrate as well as the comprehensive study of their growth mechanisms and geometry tailoring. All as-grown Pd, AuPd, and Au nanoplates possess twin-free single crystallinity as well as are aligned three-dimensionally on the substrate with the same orientation. Interestingly, depending on their composition, they have the following three distinct geometries: trapezoid (Pd), hexagon (AuPd), or rhombus (Au). By analyzing the correlation of the geometry and orientation of the as-synthesized nanostructures, we reveal that all the nanoplates grow from square pyramidal seed crystals. The interfacial lattice mismatch between the bottom plane of the square pyramidal seeds and a-cut sapphire substrate increases in the following order: Pd < AuPd < Au. Consequently, the length of the interface between the bottom of the nanoplate and the substrate decreases in the following order: Pd > AuPd > Au; this leads to the resulting geometries of the synthesized nanoplates. Such a fundamental understanding of the growth mechanism would aid the growth of epitaxial metal nanostructures with the desired geometry, which is very attractive for building macroscale functional nanoarchitectures. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Geometry-tailored freestanding epitaxial Pd, AuPd, and Au nanoplates driven by surface interactions | - |
dc.type | Article | - |
dc.identifier.wosid | 000522124800031 | - |
dc.identifier.scopusid | 2-s2.0-85082092911 | - |
dc.type.rims | ART | - |
dc.citation.volume | 12 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 6537 | - |
dc.citation.endingpage | 6544 | - |
dc.citation.publicationname | NANOSCALE | - |
dc.identifier.doi | 10.1039/c9nr10557c | - |
dc.contributor.localauthor | Kim, Bongsoo | - |
dc.contributor.nonIdAuthor | Yoo, Youngdong | - |
dc.contributor.nonIdAuthor | Kim, Si-in | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SHAPE-CONTROLLED SYNTHESIS | - |
dc.subject.keywordPlus | METAL NANOSTRUCTURES | - |
dc.subject.keywordPlus | GOLD | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | CONVERSION | - |
dc.subject.keywordPlus | SOLAR | - |
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