The interplay between excitons and trions in a monolayer of MoSe\(_2\)
We study the impact of a free carrier reservoir on the optical properties of excitonic and trionic complexes in a MoSe\(_2\) monolayer at cryogenic temperatures. By applying photodoping via a non-resonant pump laser the electron density can be controlled in our sample and in turn the exciton and tri...
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| creator | Lundt, N Cherotchenko, E Iff, O Fan, X Shen, Y Bigenwald, P Kavokin, A Höfling, S Schneider, C |
| description | We study the impact of a free carrier reservoir on the optical properties of excitonic and trionic complexes in a MoSe\(_2\) monolayer at cryogenic temperatures. By applying photodoping via a non-resonant pump laser the electron density can be controlled in our sample and in turn the exciton and trion densities can be tuned. We find a significant increase of the trion binding energy in the presence of an induced electron gas both in power- and in time-resolved photoluminescence spectra. This behaviour is reproduced within the original variational approach that takes into account both screening and phase space filling effects. |
| doi_str_mv | 10.48550/arxiv.1702.04231 |
| format | Article |
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| subjects | Cryogenic temperature Cryopumping Electron density Electron gas Excitons Monolayers Optical properties Photoluminescence Trions |
| title | The interplay between excitons and trions in a monolayer of MoSe\(_2\) |
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