Opendata, web and dolomites

SELENe SIGNED

Strain Engineering of Light-Emitting Nanodomes

Total Cost €

0

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.

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