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

K David Wegner (1) , Stéphanie Pouget (2) , Wai-Li Ling (3) , Marie Carrière (4) , Peter Reiss (1) , K. David Wegner (5)

1 STEP - Synthèse, Structure et Propriétés de Matériaux Fonctionnels
2 SGX - Service Général des Rayons X
3 IBS - UMR 5075 - Institut de biologie structurale
4 CIBEST - Chimie Interface Biologie pour l’Environnement, la Santé et la Toxicologie
5 IEF - Institut d'électronique fondamentale

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.

Domaines: Biologie structurale [q-bio.BM]

K David Wegner, Stéphanie Pouget, Wai-Li Ling, Marie Carrière, Peter Reiss, et al.. Gallium – a versatile element for tuning the photoluminescence properties of InP quantum dots. Chemical Communications, 2019, 55 (11), pp.1663-1666. ⟨10.1039/c8cc09740b⟩. ⟨hal-02159980⟩