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Showing 1–5 of 5 results
Advanced filters: Author: Hongkyu Kang Clear advanced filters

  • Building printable electronics demands flexible and transparent electrodes that can be fabricated on plastic substrates. Here, Kang et al. report a polymer-metal hybrid electrode that has a small bending radius of <1 mm, a sheet resistance of 10 Ω sq−1and a transparency in the visible range of >95%.

    • Hongkyu Kang
    • Suhyun Jung
    • Kwanghee Lee
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7

  • The fabrication of organic photovoltaic modules usually relies on patterning techniques which limit their efficiencies. Here, the authors propose a module structure that avoids the patterning steps, and use doctor-blade printing and slot-die coating to fabricate large-area modules reaching 7.5% efficiencies.

    • Soonil Hong
    • Hongkyu Kang
    • Kwanghee Lee
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-6

  • The power conversion efficiencies of most organic solar cells roll off quickly with thickness more than 100 nm. Here, Wu et al. show that avoiding excessive charge accumulation in the intra-bandgap tail states is vital to maintain the photocurrent generation at high thickness.

    • Jiaying Wu
    • Joel Luke
    • James R. Durrant
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-10

  • A novel block copolymer structural color strain sensor was developed, capable of electrically sensing a strain in capacitance change with simultaneous visualization of the strain. A thin mechanochromic bilayer of a block copolymer structural film with 1-D periodic lamellae placed on an ionic gel layer allowed for direct visualization of strain while sensing in capacitance when embedded in an elastomeric dielectric medium. Our block copolymer structural strain sensor was suitable for a reflective mode electronic skin which readily recognized human motion of the finger, elbow, and knee.

    • Tae Hyun Park
    • Seunggun Yu
    • Cheolmin Park
    ResearchOpen Access
    NPG Asia Materials
    Volume: 10, P: 328-339