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Showing 1–11 of 11 results
Advanced filters: Author: Yousoo Kim Clear advanced filters

  • Wrinkles in graphene can restrict the motion of electrons to one dimension. Here, the authors observe a one-dimensional van Hove singularity and bandgap opening in a five nanometre wide wrinkle, which enables them to create a metallic-semiconducting-metallic junction in a single graphene sheet.

    • Hyunseob Lim
    • Jaehoon Jung
    • Yousoo Kim
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-6

  • Understanding the interaction of water with oxide surfaces at the molecular level could prove to be significant for controlling the catalytic activity of complex nanoparticles on insulating films. Two types of selective dissociation pathway involving electronic and vibrational excitation are now observed for a single water molecule on MgO thin films.

    • Hyung-Joon Shin
    • Jaehoon Jung
    • Maki Kawai
    Research
    Nature Materials
    Volume: 9, P: 442-447

  • The potential of organic molecular devices are limited by our inability to uniformly arrange them as thin films on metals, especially over imperfect surfaces. Here, the authors demonstrate the growth of a self-organized molecular carpet, which can extend over steps and terraces while retaining regularity.

    • Ju-Hyung Kim
    • Jean-Charles Ribierre
    • Yousoo Kim
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-9

  • Tip-enhanced Raman spectroscopy can provide chemical sensitivity at a single-molecule level. Measurements on individual molecules adsorbed on a thin salt layer unveil that components of the electric field perpendicular to the tip provide sensitivity to the symmetry of the vibrational modes of the molecule.

    • Rafael B. Jaculbia
    • Hiroshi Imada
    • Yousoo Kim
    Research
    Nature Nanotechnology
    Volume: 15, P: 105-110

  • Conveying electrochemistry in terms of the electrode/electrolyte interfacial properties remains challenging. Here, the authors employ a surface-bound molecular probe and photoelectron spectroscopy to peer into the anion-dictated and potential-induced interfacial electronic and structural properties.

    • Raymond A. Wong
    • Yasuyuki Yokota
    • Yousoo Kim
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-9

  • Atomic-level imaging of photocurrents in a single molecule is achieved by combining a tunable laser with scanning tunnelling microscopy, revealing how photons turn into electric current via a photoexcited molecule.

    • Miyabi Imai-Imada
    • Hiroshi Imada
    • Yousoo Kim
    Research
    Nature
    Volume: 603, P: 829-834

  • Recombination of excitons to produce molecular light emission is made more efficient by controlling electron spin within the molecule to produce spin-triplet excitons only, without the usual accompanying spin-singlet excitons.

    • Kensuke Kimura
    • Kuniyuki Miwa
    • Yousoo Kim
    Research
    Nature
    Volume: 570, P: 210-213