Monthly Archives: November 2021

Optically Active CdSe/CdS Nanoplatelets Exhibiting Both Circular Dichroism and Circularly Polarized Luminescence

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2021-11-30
News: In this paper, chiroptical 2D CdSe/CdS nanoplatelets (NPLs) are prepared by ligand exchange approach, exhibiting both circular dichroism (CD) and circularly polarized luminescence (CPL). Furthermore, the CD and CPL signals are easily tuned via the design of the CdS-island structuration of the shell and its thickness which are controlled with the reaction time.
Laboratory : ICMCB

AAP MITI du CNRS/transverse aux instituts: lumière et vie

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https://miti.cnrs.fr/appel-projet/lumiere-et-vie/

  • Montant <30 keuros
  • date limite de dépôt : 19/01/2022 @ 12h00s
  • deux unités rattachées principalement à deux instituts différents du CNRSs
  • accord de la direction d’unité du porteur est requis
  • candidature avec préinscriptions
  • Aucun CDD, gratification de stage, salaire de doctorant ou post-doctorant ne pourra être financé

extrait choisi parmi plusieurs thèmes : la photochirogénèse, étude de l’apparition de la chiralité du vivant sous l’effet de la lumière polarisée, et plus généralement la photochimie prébiotique, c’est-à-dire l’apparition de systèmes riches en énergie chimique (biomolécules).

Ultrafast relaxation investigated by photoelectron circular dichroism: an isomeric comparison of camphor and fenchone

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2021-11-26
News: Circular dichroism in the photoelectron angular distribution decays exponentially in ∼730 fs from a +9% forward amplitude during the first hundreds of femtoseconds to reach an asymptotic −2% backward amplitude after to have photoexcited at ~6 eV. This time-scale is drastically shorter than in fenchone, its isomer. Our analysis allows us to evaluate the impact of the anisotropy of excitation and reveal a breakdown of the Franck-Condon approximation.
Laboratory : CELIA

Our Kick-off Meeting

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29th of Nov. 2021

INFORMATIONS :

  • Location : IECB- 2, Rue Robert Escarpit – 33607 PESSAC.
  • IECB’s Plus Code to get it on a map: R93Q+8G Pessac
  • Health pass required
  • Wearing a mask is mandatory for the whole day.
  • for a green action : bring with you an old badge from a previous conference (with your name on  it:))
  • everything will be available on site for the installation of the posters
PROGRAM :(5 minutes of questions included in each talk slot)
9h-9h30 : Welcome (with control of your health pass)/poster installation/
10 minutes of presentation

  • 9h30-10h : Thomas Barois (LOMA)
    Chirality at LOMA
  • 10h-10h30 : Alexander Kuhn (ISM)
    Unconventional approaches for the direct readout of chiral information

10h30 -11h00 : Coffee break/poster installation

  • 11h00-11h30 : Yann Mairesse (CELIA)
    Chirality in intense laser fields
  • 11h30-12h: Techniques for observation of Chirality by Thierry Buffeteau and Guillaume Raffy (ISM)
    Techniques chiroptiques développées au sein du groupe GSM de l’ISM (T.B.)
    Development of photoluminescence polarization microscopy techniques with CPL capability (G.R.)
  • 12h- 12h30: Marie-Hélène Delville and Baptiste Vignolle (ICMCB)
    Chirality and QDs nanoobjects (MH. D.)
    Intertwining superconductivity and crystal chirality in molecular solids (B.V.)

12h30-14h30 : lunch/discussion and poster’s presentation

  • 14h30-15h00: Claude Geffroy and Sébastien Papot (IC2MP)
    Interlocked molecules, origin of life and chirality : from synthesis to the analysis of chiral compounds (C.G. and S.P.)
  • 15h00-15h30: Eric Grelet (CRPP)
    Origin of chirality in self-organized phases of viruses.
  • 15h30-16h: Techniques for observation of Chirality by Valérie Gabelica (IECB) and Vincent Rodriguez (ISM)
    Measuring Chirality in a Mass Spectrometer (V.G.)
    Hyper-Rayleigh Optical Activity as a New Chiroptical Method (V.R.)
  • 16h – 16h30 : Lucile Fischer and Emilie Pouget (CBMN)
    Detection of protein/foldamer interactions by induced chirality (L.F.)
    Design of functional nanostructures via chirality induction (E.P.)

16h30-open : Poster session and discussion with coffee.