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dc.contributorKoppens, Frank
dc.contributor.authorMoreno Abajo, Álvaro
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.date.accessioned2021-03-30T09:42:27Z
dc.date.available2021-03-30T09:42:27Z
dc.date.issued2020-09-08
dc.identifier.urihttp://hdl.handle.net/2117/342810
dc.description.abstractQuantum emitters have an important role in many quantum technologies as quantum sensing and metrology, quantum computation or quantum information. They must be isolated from their environment, but paradoxically some external control is desired to be kept as well. Those requirements meet in 2D-materials like TMDs. Excitons, bound electron-hole pairs, are sensitive to their dielectric environment and to external electric fields due to the low dimensionality of 2D-material, making possible to modulate their energy landscape by patterning the adjacent materials geometry, which could allow exciton confinement. In this work, we have first simulated electrostatic fields in patterned hBN and nano-porous graphene (NPG) structures. Field is concentrated in the edges, creating an in-plane field that shift the exciton energy due to quantum confined Stark effect. Potential wells created could lead even to room temperature confinement. Secondly, we have performed PL measurements that point out spatio-temporal correlations in exciton emission that could be related with exciton diffusion. Also, we have shown that NPG decreases exciton diffusion, proving therefore an external modulation of the exciton energy landscape.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.rightsS'autoritza la difusió de l'obra mitjançant la llicència Creative Commons o similar 'Reconeixement-NoComercial- SenseObraDerivada'
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject.lcshQuantum communication
dc.subject.otherExciton
dc.subject.otherquantum emitters
dc.subject.other2D materials
dc.subject.otherquantum nano-photonics
dc.titleExciton engineering with 2D heterostructures.
dc.typeMaster thesis
dc.subject.lemacComunicació quàntica
dc.identifier.slugETSETB-230.154638
dc.rights.accessOpen Access
dc.date.updated2020-09-15T05:51:19Z
dc.audience.educationlevelMàster
dc.audience.mediatorEscola Tècnica Superior d'Enginyeria de Telecomunicació de Barcelona


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