Temperature dependence of the excitonic spectra of monolayer transition metal dichalcogenides
Sign Up to like & getrecommendations! Published in 2018 at "Frontiers of Physics"
DOI: 10.1007/s11467-018-0786-y
Abstract: AbstractWe theoretically study the temperature dependence of the excitonic spectra of monolayer transition metal dichalcogenides using the O′Donnell equation, $${E_g}(T) = {E_g}(0) - S\langle \hbar \omega \rangle [cloth(\frac{{\hbar \omega }}{{2{k_B}T}} - 1)]$$Eg(T)=Eg(0)−S〈ℏω〉[cloth(ℏω2kBT−1)] . We develop… read more here.
Keywords: dependence excitonic; spectra monolayer; temperature dependence; excitonic spectra ... See more keywords
Rotons in optical excitation spectra of monolayer semiconductors
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DOI: 10.1103/physrevb.101.205409
Abstract: Optically generated excitons dictate the absorption and emission spectrum of doped semiconductor transition-metal dichalcogenide monolayers. We show that upon increasing the electron density, the elementary optical excitations develop a rotonlike dispersion, evidenced by a shift… read more here.
Keywords: spectra monolayer; monolayer semiconductors; excitation spectra; optical excitation ... See more keywords