dc.contributor.authorQi, Xiaoying
dc.contributor.authorHuang, Yizhong
dc.contributor.authorKlapper, Markus
dc.contributor.authorBoey, Freddy Yin Chiang
dc.contributor.authorHuang, Wei
dc.contributor.authorFeyter, Steven De
dc.contributor.authorMüllen, Klaus
dc.contributor.authorZhang, Hua
dc.date.accessioned2012-09-19T08:56:25Z
dc.date.available2012-09-19T08:56:25Z
dc.date.copyright2010en_US
dc.date.issued2010
dc.identifier.citationQi, X., Huang, Y., Klapper, M., Boey, F., Huang, W., Feyter, S. D., et al. (2010). In situ modification of three-dimensional polyphenylene dendrimer-templated CuO rice-shaped architectures with electron beam irradiation. The Journal of Physical Chemistry C, 114(32), 13465-13470.en_US
dc.identifier.issn1932-7447en_US
dc.identifier.urihttp://hdl.handle.net/10220/8581
dc.description.abstractIn this study, the high-energy electron beam of the transmission electron microscope (TEM) is utilized as an external force to in situ modify the polyphenylene dendrimer (G2Td(COOH)16) templated CuO rice-shaped architecture (RSA). By virtue of the nanoscale precision of this approach, the electron beam-modified RSA retains its rice shape while the internal primary CuO nanoparticles are converted to the Cu2O nanoparticles with increased size. Detailed investigation using a time-lapse TEM technique reveals that such a modification process is mainly constituted by two stages, involving the arrangement of the primary CuO nanoparticles and the transformation of the primary CuO into Cu2O nanoparticles. Within the modification process, the high-energy electron beam of TEM serves as the external driving force and energy resource to improve the orientation and increase the crystallinity of the single-phase CuO nanoparticles and subsequently transfer the nanoparticle phase from CuO to Cu2O. This study highlights a facile in situ way to finely tune the nanoscale morphology and chemical composition of nanoparticles and nanoparticle-based assembled structures.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesThe journal of physical chemistry Cen_US
dc.rights© 2010 American Chemical Society.en_US
dc.subjectDRNTU::Engineering::Materials
dc.titleIn situ modification of three-dimensional polyphenylene dendrimer-templated CuO rice-shaped architectures with electron beam irradiationen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1021/jp1050468


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