Publications by authors named "Wonkyung Choi"
J Am Chem Soc
December 2021
Article Synopsis
- - Two-dimensional semiconductors, particularly 2D halide perovskite crystals, serve as an ideal environment for exploring excitons and biexcitons, though traditional photoluminescence interpretations may inaccurately estimate biexciton binding energies.
- - The study reveals that biexcitons form via the binding of two dark excitons, with a significant bright-dark energy separation affecting spectral observations, leading to an underestimation of actual binding energies.
- - Doping with manganese (Mn) enhances biexciton stability and paramagnetism, resulting in a slight increase in binding energy and exciton capture coefficient, though the measured values are still lower than previously reported, suggesting the need for reevaluation of bie
