6 papers
Energy renormalizations of resident carriers and excitons in transition metal dichalcogenide monolayers
Dinh Van Tuan, Junghwan Kim, Hanan Dery
Energy renormalizations of resident carriers and excitons are studied theoretically, and compared with recent experiments of electrostatically-doped WSe monolayers. The calcula…
Ten-valley excitonic complexes in charge-tunable monolayer WSe
Alain Dijkstra, Amine Ben Mhenni, Dinh Van Tuan +10
Excitons dominate the optical response of two-dimensional (2D) semiconductors. Strong interactions produce peculiar excitonic complexes, which provide a testing ground for exciton…
Excitons in moiré superlattices with disordered electrons
Junghwan Kim, Dinh Van Tuan, Hanan Dery
Moiré superlattices in transition metal dichalcogenides (TMDs) heterobilayers exhibit various correlated insulating states driven by long-range Coulomb interactions, and these sta…
Landau-level composition of bound exciton states in magnetic field
Dinh Van Tuan, Hanan Dery
We present a theory that studies the state composition of a bound exciton in magnetic field. Using a basis set made of products of free electron and hole wavefunctions in Landau ga…
Excitons in fractionally-filled moiré superlattices
Junghwan Kim, Hanan Dery, Dinh Van Tuan
Long-range Coulomb forces give rise to correlated insulating states when charge particles populate a moiré superlattice at certain fractional filling factors. Such behavior is cha…
Energy shifts and broadening of excitonic resonances in electrostatically-doped semiconductors
Hanan Dery, Cedric Robert, Scott A. Crooker +2
Tuning the density of resident electrons or holes in semiconductors provides crucial insight into the composition of excitonic complexes that are observed as absorption or photolum…