4.7 Article

Gallium - a versatile element for tuning the photoluminescence properties of InP quantum dots

Journal

CHEMICAL COMMUNICATIONS
Volume 55, Issue 11, Pages 1663-1666

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc09740b

Keywords

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Funding

  1. French Government's Investissements d'Avenir ANR program, through the A*MIDEX project [ANR-11-LABX-0064, ANR-11-IDEX-0001-02]
  2. French National Research agency ANR [ANR-16-CE09-0015-03, ANR-18-CE09-0039-01]
  3. CEA DRF Impulsion program (Cryo-ME_NP)
  4. FRISBI [ANR-10-INSB-05-02]
  5. GRAL [ANR-10-LABX-49-01]
  6. Auvergne-Rhone-Alpes Region
  7. fonds FEDER
  8. Fondation Recherche Medicale (FRM)
  9. GIS-IBISA

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With the goal to tune the emission properties of colloidal InP quantum dots, the incorporation of Ga was explored. Unexpectedly, depending on the nature of the gallium precursor, the photoluminescence shifted either to the red (gallium oleate) or to the blue (gallium acetylacetonate). In the first case, larger-sized InP/GaP core/shell nanocrystals were formed, while in the second case the formation of an InGaP alloy structure enabled the blue range of emission (475 nm) to be accessed.

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