Brightening of dark excitons in monolayers of semiconducting transition metal dichalcogenides

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F17%3APU123030" target="_blank" >RIV/00216305:26620/17:PU123030 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/2053-1583/aa5521" target="_blank" >http://dx.doi.org/10.1088/2053-1583/aa5521</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2053-1583/aa5521" target="_blank" >10.1088/2053-1583/aa5521</a>

Result language
angličtina
Original language name
Brightening of dark excitons in monolayers of semiconducting transition metal dichalcogenides
Original language description
We present low-temperature magneto-photoluminescence experiments which demonstrate the brightening of dark excitons by an in-plane magnetic field B applied to monolayers of different semiconducting transition metal dichalcogenides. For WSe2 and WS2 monolayers, the dark exciton emission is observed at ∼50 meV below the bright exciton peak and displays a characteristic doublet structure whose intensity grows with B2 , while no magnetic field induced emission peaks appear for MoSe2 monolayer. Our experiments also show that the MoS2 monolayer has a dark exciton ground state with a dark-bright exciton splitting energy of ∼100 meV.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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