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Showing 1–4 of 4 results
Advanced filters: Author: Stephen Dongmin Kang Clear advanced filters

  • Heat is a form of energy that is transported from a hot to a cold region, but it is not a notion that is associated with the microscopic measurement of electronic properties. It is now shown that local thermoelectric measurements can be used for imaging structural disorder in graphene, with high sensitivity, on the atomic and nanometre scales, uncovering soliton-like domain-wall line-patterns separating different graphene regions.

    • Sanghee Cho
    • Stephen Dongmin Kang
    • Ho-Ki Lyeo
    Research
    Nature Materials
    Volume: 12, P: 913-918

  • A generalized charge-transport model is reported that is able to describe the thermopower–conductivity relation at various temperatures in several semiconducting polymers, suggesting a rethinking of conduction mechanisms in these materials.

    • Stephen Dongmin Kang
    • G. Jeffrey Snyder
    Research
    Nature Materials
    Volume: 16, P: 252-257

  • Although layered oxides electrodes in lithium-ion batteries are designed under conditions avoiding phase transitions, phase separation during delithiation has been observed. This apparent phase separation is shown to be a dynamical artefact occurring in a many-particle system driven by autocatalytic electrochemical reactions.

    • Jungjin Park
    • Hongbo Zhao
    • William C. Chueh
    Research
    Nature Materials
    Volume: 20, P: 991-999

  • Three-dimensional optical imaging during battery operation reveals lithium heterogeneity at multiple length scales, challenging the look-at-one-particle approach.

    • Stephen Dongmin Kang
    • William C. Chueh
    News & Views
    Nature Nanotechnology
    Volume: 18, P: 1130