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35 papers
Exciton-Sensitized Second-Harmonic Generation in 2D Heterostructures
Wontaek Kim, Gyouil Jeong, Juseung Oh +4
The efficient optical second-harmonic generation (SHG) of two-dimensional (2D) crystals, coupled with their atomic thickness that circumvents the phase-match problem, has garnered…
Interfacial-Water-Modulated Photoluminescence of Single-Layer WS on Mica
Yanghee Kim, Haneul Kang, Myongin Song +2
Because of their bandgap tunability and strong light-matter interactions, two-dimensional (2D) semiconductors are considered promising candidates for next-generation optoelectronic…
In-Plane and Out-of-Plane Excitonic Coupling in 2D Molecular Crystals
Dogyeong Kim, Sol Lee, Jiwon Park +4
Understanding the nature of molecular excitons in low-dimensional molecular solids is of paramount importance in fundamental photophysics and various applications such as energy ha…
Photoluminescence Path Bifurcations by Spin Flip in Two-Dimensional CrPS4
Suhyeon Kim, Sangho Yoon, Hyo-Bin Ahn +6
Ultrathin layered crystals of coordinated chromium(III) are promising not only as two-dimensional (2D) magnets but also as 2D near-infrared (NIR) emitters owing to long-range spin…
Dual-channel charge transfer doping of graphene by sulfuric acid
Kwnaghee Park, Sunmin Ryu
Two-dimensional materials represented by graphene and transition metal dichalcogenides undergo charge transfer (CT) processes and become hole-doped in strong mineral acids. Nonethe…
Redox and Molecular Diffusion in 2D van der Waals Space
Haneul Kang, Kwanghee Park, Sunmin Ryu
Understanding charge transfer (CT) between two chemical entities and subsequent change in their charge densities is essential not only for molecular species but also for various lo…