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Yoo, Jung-Woo
Functional Hybrid Materials and Devices Lab(FHMDL)
Research Interests
  • Transport properties, spintronics, organic/molucular magnet, electronic, and spintronics,
  • 2DEG, energy harvesting device, atomic/molecular layer deposition

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Evolution of catalyst particle size during carbon single walled nanotube growth and its effect on the tube characteristics

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dc.contributor.author Harutyunyan, Avetik R. ko
dc.contributor.author Tokune, Toshio ko
dc.contributor.author Mora, Elena ko
dc.contributor.author Yoo, Jung-Woo ko
dc.contributor.author Epstein, Arthur J. ko
dc.date.available 2014-10-27T00:10:38Z -
dc.date.created 2014-10-24 ko
dc.date.issued 2006-08 -
dc.identifier.citation JOURNAL OF APPLIED PHYSICS, v.100, no.4, pp.1 - 8 ko
dc.identifier.issn 0021-8979 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/7736 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33748307726 ko
dc.description.abstract A series of Fe catalysts, with different mean diameters, supported on alumina with different molar ratios, was studied before and after carbon single walled nanotubes growth using magnetic measurements and Raman scattering techniques (laser excitation wavelengths from 1.17 to 2.54 eV) to follow changes on catalyst particle size and composition, as well as the relationship between particle size and diameter of nanotubes grown. In all cases, an increase and redistribution of the particle size after the growth was concluded based on the blocking temperature values and Langevin function analysis. This is explained in terms of agglomeration of particles due to carbon-induced liquefaction accompanied with an increase in the catalyst mobility. For large particles no direct correlation between the catalyst size and the nanotube diameters was observed. ko
dc.description.statementofresponsibility open -
dc.language ENG ko
dc.publisher AMER INST PHYSICS ko
dc.title Evolution of catalyst particle size during carbon single walled nanotube growth and its effect on the tube characteristics ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-33748307726 ko
dc.identifier.wosid 000240236800119 ko
dc.type.rims ART ko
dc.description.wostc 22 *
dc.description.scopustc 0 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-10-24 *
dc.identifier.doi 10.1063/1.2335396 ko
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