Author

Sang-Jin Han

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Preprint Sep 2026

Dimensional Control of Excitonic Interactions in Exfoliated 2D Molecular Crystals

Two-dimensional (2D) materials provide unique opportunities to tailor excited-state properties through reduced dimensionality, altered dielectric screening and layer-dependent structural reconstruction. While such effects have been widely explored in norganic systems, their realization in molecular crystals has been li...

Jonghyun Son, Seonghyun Koo, Daniel Yim et al. · 0 citations

Open access 2026

GAR-Tracker: Target-Visible Trajectory Planning for a Ground Assistant Robot

This paper proposes a Bernstein polynomial motion primitive (BPMP)-based sample–check–select approach for differential-drive robots that handle both unstructured and dynamic obstacle scenarios effectively and explicitly accounts for the effect of the trajectory on the heading direction and its impact on tracking perfor...

Seung-Woo Jung, Sang-Jin Han, Seungyeon Yoo et al. · IEEE Access · 0 citations