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DECAGON SIGNED

Doping Colloidal Nanoplatelets: Synthesis, Self-assembly and Spectroscopy

Total Cost €

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EC-Contrib. €

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Partnership

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 DECAGON project word cloud

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

optical    synthetic    two    exfoliated    soft    fundamental    optoelectronic    outstanding    tune    cdte    transistor    stem    decade    nanoplatelets    mobility    light    structure    xrd    doping    solar    degree    form    ag    atomically    bulk    cds    characterization    quasi    interaction    grafting    spectroscopy    orientation    npls    graphene    platelets    cells    afterwards    spectra    strategies    emerged    2d    techniques    supraparticles    scrutiny    emitting    metal    thin    nanosheets    colloidal    absorbance    extend    nanomaterials    fine    single    interesting    assemble    lifetimes    last    cu2    density    absorption    objects    excitation    ions    opto    interface    mn2    offers    community    photoluminescence    physical    coupled    semiconducting    materials    devise    templating    transition    tem    polymer    rising    emission    route    direct    solution    electronic    structural    assembly    attracted    flat    carrier    assemblies    depletion    effect    prerequisite    cdse    collective    doped    small    photovoltaic    dimensional    fluorescence   

Project "DECAGON" data sheet

The following table provides information about the project.

Coordinator
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS 

Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794
website: www.cnrs.fr

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 France [FR]
 Project website http://www.cnrs.fr/inc/communication/direct_labos/nano-plaquettes.htm
 Total cost 185˙076 €
 EC max contribution 185˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-01-11   to  2018-01-10

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS FR (PARIS) coordinator 185˙076.00

Map

 Project objective

Two dimensional (2D) nanomaterials have attracted rising scrutiny from the research community in the last decade due to their outstanding physical, optical and structural properties. Beyond the well-known example of graphene and other exfoliated bulk materials, a new colloidal route has recently emerged towards such materials and offers a high degree of control on the structure of these nanosheets. Among these, atomically flat, quasi-two dimensional, colloidal semiconducting (CdS, CdSe and CdTe) nanoplatelets (NPLs) have very interesting opto-electronic properties. Our goal is to fully exploit the potential of these NPLs by doping them with transition metal ions (Mn2, Cu2 or Ag). With the help of doping in such small systems, we can tune the absorbance, photoluminescence, carrier density and mobility of these materials and extend the potential of these materials for various applications such as field effect transistor, light emitting devices or photovoltaic solar cells. We will devise new synthetic strategies towards doped semiconducting NPLs and characterize their structural and optical and electronic properties using state of the art techniques. Advanced structural characterization (XRD, TEM, STEM) will be coupled to optical spectroscopy (fluorescence lifetimes, absorption, emission and excitation spectra) both in solution and on single objects. Afterwards, we will assemble these thin doped platelets together to form supraparticles and large-scale assemblies using different soft-matter techniques (depletion interaction, polymer grafting, templating by an interface) in order to tune their optoelectronic properties. A fine control of the assembly process would direct to new fundamental collective effects and easy processing and orientation of doped platelets, which is a prerequisite for their use in applications.

 Publications

year authors and title journal last update
List of publications.
2017 Santanu Jana, Marta de Frutos, Patrick Davidson, Benjamin Abécassis
Ligand-induced twisting of nanoplatelets and their self-assembly into chiral ribbons
published pages: e1701483, ISSN: 2375-2548, DOI: 10.1126/sciadv.1701483
Science Advances 3/9 2019-06-18

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