Schedules at Active

  • Oct
    16

    중간고사기간

    October 16 - 20, 2017

  • Oct
    14

    ACTIVE 연구실 학생회의

    October 14

    유레카 빌딩
  • Sep
    1

    가을학기 개강

  • Sep
    5

    ACTIVE 연구실 학생회의

    September 5th, 2pm~3pm

    유레카 빌딩 연구실

publication

Wetting Transparent Graphene Films for Hydrophobic Water-Harvesting Surfaces Graphene Films

Our current understanding of wetting of graphene-coated surfaces is that graphene is wetting-transparent provided that the underlying surface is significantly more wettable than graphene, while it is wetting-opaque for surfaces that are less wettable than graphene. [ 1–8 ] Here we show that graphene coatings can in fact be wetting-transparent even for roughened copper surfaces which by virtue of their entrapped air-pockets are significantly less wettable than graphene itself. This contradictory result is explained by the fact that the graphene fi lm in our case is grown...

Durable and Water-Floatable Ionic Polymer Actuator with Hydrophobic and Asymmetrically Laser-Scribed Reduced Graphene Oxide Paper Electrodes

Ionic polymer actuators driven by electrical stimuli have been widely investigated for use in practical applications such as bioinspired robots, sensors, and biomedical devices. However, conventional ionic polymer–metal composite actuators have a serious drawback of poor durability under long-term actuation in open air, mainly because of the leakage of the inner electrolyte and hydrated cations through cracks in the metallic electrodes. Here, we developed a highly durable and water-floatable...

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