We present optical spectroscopy (photoluminescence and reflectance) studies of thin layers
of the transition metal dichalcogenide WSe2, with thickness ranging from mono-to tetra-layer …

Recent optical studies of monolayer transition-metal dichalcogenides have demonstrated
that their excitonic absorption feature splits into two widely separated peaks at finite carrier …

Recently, it has been demonstrated that the absorption of moderately doped two-
dimensional semiconductors can be described in terms of exciton polarons. In this scenario …

In this work, comprehensive temperature and excitation power dependent
photoluminescence and time-resolved photoluminescence studies are carried out on …

We discover an excited bound three-particle state, the 2 s trion, appearing energetically
below the 2 s exciton in monolayer WS 2, using absorption spectroscopy and ab initio GW …

We perform absorption and photoluminescence spectroscopy of trions in hBN-encapsulated
WS e 2, WS 2, MoS e 2, and Mo S 2 monolayers, depending on temperature. The different …

A brief review is given of optical studies of doped II–VI quantum wells. The properties of
exciton states, neutral as well as positively and negatively charged, are discussed. A wide …

The mechanisms for generation of long-lived spin coherence in a two-dimensional electron
gas (2DEG) have been studied experimentally by means of a picosecond pump-probe Kerr …

A consistent density‐matrix approach for the absorption spectra of semiconductor
nanostructures at finite carrier densities is presented that describes both bound and …

We report transport of electron-hole complexes in semiconductor quantum wells under
applied electric fields. Negatively charged excitons (X–), created by laser excitation of a high …