Distinct moiré trions in a twisted semiconductor homobilayer

Liu, Z., Wang, H., Liu, R., Gao, F., et al.
July 24, 2024. https://arxiv.org/abs/2407.17025

We discovered a new type of trion in a twisted MoSe₂ homobilayer, in which the carrier and exciton are spatially separated.
TEM and Raman analyses indicate that lattice reconstruction is crucial, with the novel trion configuration emerging only in a superlattice that exhibits gradual atomic variations.