2 papers
physics.optics2026
Direct observation of ultrafast defect-bound and free exciton dynamics in defect-engineered WS monolayers
Tae Gwan Park, Xufan Li, Kyungnam Kang +7
Defects in two-dimensional transition metal dichalcogenides (TMDCs) broadly affect their optical and electronic properties. Directly capturing the ultrafast processes of exciton tr…
cond-mat.mes-hall2026
Spontaneous Polarization Suppression of Exciton-Exciton Annihilation in 3R-Stacked MoS Bilayers
Tae Gwan Park, Xufan Li, Kyungnam Kang +4
Rapid exciton-exciton annihilation (EEA) in two-dimensional semiconductors limits access to high-density excitonic regimes essential for efficient optoelectronic operation under st…