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Kwon, Oh Hoon
Ultrafast Laser Spectroscopy and Nano-microscopy (ULSaN Lab)
Research Interests
  • Femtochemistry/biology, 4D electron microscopy, structural dynamics, materials phenomena

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Single-nanoparticle phase transitions visualized by four-dimensional electron microscopy

DC Field Value Language
dc.contributor.author van der Veen, Renske M. ko
dc.contributor.author Kwon, Oh Hoon ko
dc.contributor.author Tissot, Antoine ko
dc.contributor.author Hauser, Andreas ko
dc.contributor.author Zewail, Ahmed H. ko
dc.date.available 2014-11-14T00:18:06Z -
dc.date.created 2014-11-12 ko
dc.date.issued 2013-05 ko
dc.identifier.citation NATURE CHEMISTRY, v.5, no.5, pp.395 - 402 ko
dc.identifier.issn 1755-4330 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/8725 -
dc.description.abstract The advancement of techniques that can probe the behaviour of individual nanoscopic objects is of paramount importance in various disciplines, including photonics and electronics. As it provides images with a spatiotemporal resolution, four-dimensional electron microscopy, in principle, should enable the visualization of single-nanoparticle structural dynamics in real and reciprocal space. Here, we demonstrate the selectivity and sensitivity of the technique by visualizing the spin crossover dynamics of single, isolated metal-organic framework nanocrystals. By introducing a small aperture in the microscope, it was possible to follow the phase transition and the associated structural dynamics within a single particle. Its behaviour was observed to be distinct from that imaged by averaging over ensembles of heterogeneous nanoparticles. The approach reported here has potential applications in other nanosystems and those that undergo (bio) chemical transformations. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher NATURE PUBLISHING GROUP ko
dc.title Single-nanoparticle phase transitions visualized by four-dimensional electron microscopy ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84876840605 ko
dc.identifier.wosid 000317961700013 ko
dc.type.rims ART ko
dc.description.wostc 22 *
dc.description.scopustc 16 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-11-12 *
dc.identifier.doi 10.1038/nchem.1622 ko
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84876840605 ko
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