Wafer-scale controlled Au/Pt bimetallic flowerlike structure array

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dc.contributor.authorHuang, Xing-Jiuko
dc.contributor.authorKim, Ju-Hyunko
dc.contributor.authorChoi, Yang-Kyuko
dc.date.accessioned2009-10-08T04:48:07Z-
dc.date.available2009-10-08T04:48:07Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2008-04-
dc.identifier.citationGOLD BULLETIN, v.41, no.1, pp.58 - 65-
dc.identifier.issn0017-1557-
dc.identifier.urihttp://hdl.handle.net/10203/11712-
dc.description.abstractThe combining of the bottom-up with top-down techniques is essential to construct novel micro-/ nano-materials according to the requirements of its end applications. This paper describes a pattern-directed method that combines the advantages of photolithography and electrochemical synthesis to construct a wafer-scale Au/Pt bimetallic flowerlike structure array. With this technique, Au/Pt bimetallic flowerlike structure arrays are homogeneously and highly-selectively synthesized from Au patterns with different spacing, dimensions and shapes on a 4-inch silicon wafer. The Au/Pt flowers are also well-constructed in the different designed array such as 'KAIST' and 'NOBEL'. The surface morphology of the Au/Pt flower was observed using scanning electron microscope (SEM). The chemical composition of the bimetallic flower was confirmed using energy dispersive spectrometer (EDS) and X-ray electron spectroscopy (XPS). The X-ray diffraction (XRD) patterns of the Au pitch and Si substrate on a wafer were studied to reveal the highly-selective growth from Au pitches. A time-dependent evolution clearly presents the different growth stages of Au/Pt flower. The analysis of Au/Pt flower growth process in an individual Au pitch shows an edge-selective particle development mechanism. The method can be applied to the construction of other interesting nano/microflower arrays of metals or metal oxides. The results would be helpful for the creation of the flower with regular physical attributes (shapes and sizes) and guiding the design of a perfect array for technological innovations.-
dc.description.sponsorshipIt was partially supported by the National Research and Development Program (NRDP, 2005- 01274) for biomedical function monitoring biosensor development sponsored by the Korea Ministry of Science and Technology (MOST), and partially supported by NRL program of the Korea Science and Engineering Foundation grant funded by the Korea government (MOST) (NO. RøA-2007- 000-20028-0).en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherWORLD GOLD COUNCIL-
dc.subjectAU-PT-
dc.subjectMETAL NANOPARTICLES-
dc.subjectOPTICAL-PROPERTIES-
dc.subjectGOLD-
dc.subjectLITHOGRAPHY-
dc.subjectNANOSTRUCTURES-
dc.subjectCATALYSTS-
dc.subjectGROWTH-
dc.subjectELECTRODEPOSITION-
dc.subjectNUCLEATION-
dc.titleWafer-scale controlled Au/Pt bimetallic flowerlike structure array-
dc.typeArticle-
dc.identifier.wosid000254976500008-
dc.identifier.scopusid2-s2.0-43849113411-
dc.type.rimsART-
dc.citation.volume41-
dc.citation.issue1-
dc.citation.beginningpage58-
dc.citation.endingpage65-
dc.citation.publicationnameGOLD BULLETIN-
dc.identifier.doi10.1007/BF03215624-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorChoi, Yang-Kyu-
dc.contributor.nonIdAuthorHuang, Xing-Jiu-
dc.contributor.nonIdAuthorKim, Ju-Hyun-
dc.type.journalArticleArticle-
dc.subject.keywordPlusAU-PT-
dc.subject.keywordPlusMETAL NANOPARTICLES-
dc.subject.keywordPlusOPTICAL-PROPERTIES-
dc.subject.keywordPlusGOLD-
dc.subject.keywordPlusLITHOGRAPHY-
dc.subject.keywordPlusNANOSTRUCTURES-
dc.subject.keywordPlusCATALYSTS-
dc.subject.keywordPlusGROWTH-
dc.subject.keywordPlusELECTRODEPOSITION-
dc.subject.keywordPlusNUCLEATION-
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