Pohang Accelerator Laboratory

Post-Functionalized Vinyl-Addition Polynorbornenes as Modular Platforms for Anion Exchange Membranes: Structure–Property Relationships

Abstract Fully hydrocarbon-based anion exchange membranes (AEMs) were developed through a facile post-polymerization strategy using vinyl-addition polynorbornene (VA-PNB) backbones. A high-molecular-weight poly(5-vinyl-2-norbornene) (PVNB) precursor was synthesized via chemoselec...

Ultrafast Magneto‐Geometric Control of Terahertz Helicity in Curved Ni Metasurfaces

ABSTRACT Dynamic helicity control in the terahertz (THz) regime is essential for ultrafast polarization optics, chiral spectroscopy, and polarization‐selective photonic devices, yet remains difficult because most THz chiral systems are structurally fixed or rely on slow external...

Dynamics of a jointly commensurate moiré charge density wave

Abstract The advent of two-dimensional moiré systems has revolutionized the exploration of phenomena arising from strong correlations and nontrivial band topology. Recently, a moiré superstructure formed by two coexisting charge density waves with slightly mismatched wavevectors...