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.

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

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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