Fabrication of a High Quality Hybrid System Comprising TMDC Monolayer and Nanostructures as a single-photon source.

• Grant number: 24/18349-4
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: February 01, 2025
• End date: May 31, 2025
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Euclydes Marega Junior
• Grantee: Ana Clara Sampaio Pimenta
• Supervisor: Andras Kis
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
• Associated to the scholarship: 23/11839-3 - Extreme behavior of light-matter interaction in plasmonic nanostructures coupled with 2D materials, BP.PD

Abstract

The rise of bidimensional materials, particularly transition metal dichalcogenides(TMDCs), driven by advancements in graphene research, opens up new technologicalpossibilities. TMDCs exhibit exceptional mechanical and optoelectronic properties atthe monolayer scale, including a direct band gap that contrasts with those of theirbulk counterparts. The strong excitonic emission of 2D-TMDCs makes them wellsuited for optoelectronic applications and highly promising for quantum technologies.Developing single-photon emitters (SPEs) is crucial for quantum technologies thatrequire precise and secure information processing. In this context, localized excitonsin 2D-TMDCs are potential candidates for generating SPEs because of their stabilityat room temperature, unlike traditional III-V quantum dots. Techniques for confinedCLPs often involve defects and strain, with the latter being the focus of this project.Additionally, strained 2D-TMDCs can be integrated with plasmonic platforms, enhancingemission and increasing quantum efficiency of the SPs.The BEPE project, focuses on fabricating hybrid systems that combineTMDC monolayers with plasmonic platforms, holding great promise for the advancementof quantum technologies. These systems will be designed to create strain gradientsand plasmonic effects to confine excitons and enhance single-photon emission. Thecandidate will conduct the research at the EPFL Lab of Nanoscale Electronics andStructures under the expert supervision of Professor Andras Kis.