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Showing 1 to 5 of 5 for “"excitonic complexes"”.
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Monte Carlo studies of ground state and optical properties of multiexcitonic complexes in semiconductors
Excitonic complexes, consisting of several electron-hole pairs bound by mutual Coulomb interactions, play an important role in the photoluminescence of direct- and indirect-gap semiconductors and semiconductor impurities. We calculate the ground-state and optical properties of several multiexciton …
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Monte Carlo studies of ground-state & optical properties of multiexcitonic complexes in semiconductors
Excitonic complexes, consisting of several electron-hole pairs bound by mutual Coulomb interactions, play an important role in the photoluminesence of direct- and indirect-gap semiconductors and semiconductor impurities. We calculate the ground-state and optical properties of several multiexciton …
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Luminescence studies of the excitonic system in germanium: Phase properties and transport
… presents the results of three studies of the excitonic system in Ge. These studies employ near-infrared spectroscopy and imaging techniques to examine the phase and transport properties of the low temperature exciton-plasma system. The first study, presented in Chapter II, examines the …
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Controlling exciton dimensionality in novel transition-metal dichalcogenide platforms
… edge. This leads to the emergence of quantised excitonic sub-bands, with magneto-optical measurements revealing the exchange-split linearly polarised fine structure of the exciton states. This system offers the possibility of electrically tuneable quantum confinement of excitons in an arbitrary …
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I. Excitonic phase diagram in Si: evidence for two condensed phases ; II. Motion of photoexcited carriers in GaAs/Alx̳Ga1̳-̳x̳As multiple quantum wells : anomalous confinement at high densities
… Two major topics are addressed: I. Excitonic Phase Diagram in Si: Evidence for Two Condensed Phases At low temperatures and sufficient densities, free excitons in Si and Ge undergo a simultaneous gas-liquid and insulator-metal transition into droplets of electron-hole liquid. Some …