Opendata, web and dolomites

SELENe SIGNED

Strain Engineering of Light-Emitting Nanodomes

Total Cost €

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EC-Contrib. €

0

Partnership

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 SELENe project word cloud

Explore the words cloud of the SELENe project. It provides you a very rough idea of what is the project "SELENe" about.

multilayer    h2    overcome    lithography    acting    der       layer    metal    opaque    emission    single    intensity    regions    irradiation    interlayer    piezoelectric    unexplored    crystal    waals    thinned    drawback    formed    exhibit    practical    electron    tmd    strain    binary    temperature    fundamental    exciton    quantum    selectively    tmds    thickness    controllably    excellent    dome    site    expose    selene    coupling    photonic    gap    dichalcogenides    performing    masks    quality    freedom    experimental    electronic    flakes    shifting    fabrication    distance    mechanical    prescribed    waveguides    bulk    advantage    direct    lacks    extend    upscaling    openings    fabricate    van    thick    wants    when    degree    interface    merges    brillouin    surrounding    heterostructures    trapped    optical    actuators    basic    inflated    gives    pseudospin    laboratory    beam    samples    first    heterobilayers    investigation    monolayer    paradigm    zone    systematic    bang    exfoliation    varied    influence    sized    domes    perform    structures    transition    emitters    nanometer    condensation    valley    excitons    points    hydrogen    cavities   

Project "SELENe" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITA DEGLI STUDI DI ROMA LA SAPIENZA 

Organization address
address: Piazzale Aldo Moro 5
city: ROMA
postcode: 185
website: www.uniroma1.it

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Italy [IT]
 Total cost 171˙473 €
 EC max contribution 171˙473 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2018
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2019
 Duration (year-month-day) from 2019-09-01   to  2021-08-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITA DEGLI STUDI DI ROMA LA SAPIENZA IT (ROMA) coordinator 171˙473.00

Map

 Project objective

When transition metal dichalcogenides (TMDs) are thinned down to monolayer thickness, they exhibit a direct bang gap at the K and K’ points of the Brillouin zone, which represents a binary quantum degree of freedom, referred to as valley pseudospin. The fabrication of high quality samples is currently based on the mechanical exfoliation of monolayer flakes from bulk crystal. While this approach gives excellent results at the laboratory scale, it lacks potential for upscaling, in particular if one wants to achieve a systematic coupling with surrounding photonic structures. This drawback can be overcome by controllably creating single-layer thick domes by performing hydrogen irradiation of a multilayer TMD sample. SELENe aims at exploiting this fabrication approach to perform a paradigm-shifting experimental activity, which merges the investigation of so far unexplored fundamental electronic properties of TMDs, and the first implementation of a practical interface between TMD-based emitters and basic photonic structures. We will perform a systematic investigation of the optical properties of monolayer-thick domes formed after H irradiation and extend this by controllably applying strain via piezoelectric actuators to H-inflated domes. We will investigate the influence of the strain also on interlayer excitons formed across van der Waals heterostructures. We will achieve control of the emission intensity of the interlayer exciton in domes formed in heterobilayers, because the interlayer distance can be varied acting on the temperature, due to the condensation of H2 trapped into the dome. Finally, it is possible to selectively expose prescribed regions of a sample to H irradiation by defining openings in H-opaque masks. We will take advantage of this approach by making use of electron-beam lithography to fabricate nanometer-sized domes, which we will then exploit as site-controlled emitters and for coupling into waveguides and photonic crystal cavities.

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The information about "SELENE" are provided by the European Opendata Portal: CORDIS opendata.

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