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Showing 1–2 of 2 results
Advanced filters: Author: Bumjoon Seo Clear advanced filters

  • Cooperative transitions have acquired much attention for low transition barriers, ultrafast kinetics, and structural reversibility but cooperative transitions are rare in molecular crystals and their origin is poorly understood. Here the authors show that reorientation of the alkyl side chains in a 2-dimensional quinoidal terthiophene triggers cooperative behavior, and establish alkyl chain engineering to control the polymorphic behavior.

    • Daniel William Davies
    • Bumjoon Seo
    • Ying Diao
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-14

  • All-polymer solar cells have advantages over fullerene-based solar cells due to improved stability and tunable chemical and electronic properties. Here, Kim et al.develop highly efficient and robust solar cells based on PBDTTTPD and P(NDI2HD-T), highlighting their potential in flexible and portable electronics.

    • Taesu Kim
    • Jae-Han Kim
    • Bumjoon J. Kim
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7