PARKER, Megan; DE MARCO, Maria; CASTRO-GRIJALBA, Alexander; GHORIDI, Anissa; PORTEHAULT, David; PECHEV, Stanislav; HILLARD, Elizabeth; LACOMME, Sabrina; BESSIÈRE, Aurélie; CUNIN, Frédérique; ROSA, Patrick; GONIDEC, Mathieu; DRISKO, Glenna

doi:10.1039/d3nr05793c

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PARKER, Megan
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DE MARCO, Maria
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CASTRO-GRIJALBA, Alexander
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Article de revue

Ce document a été publié dans

Nanoscale. 2024

Royal Society of Chemistry

Date de soutenance

2024

Résumé en anglais

A current challenge in silicon chemistry is to perform liquid-phase synthesis of silicon nanoparticles, which would permit the use of colloidal synthesis techniques to control size and shape. Herein we show how silicon nanoparticles were synthesized at ambient temperature and pressure in organic solvents through a redox reaction. Specifically, a hexacoordinated silicon complex, bis(N,N′-diisopropylbutylamidinato)dichlorosilane, was reduced by a silicon Zintl phase, sodium silicide (Na4Si4). The resulting silicon nanoparticles were crystalline with sizes tuned from a median particle diameter of 15 nm to 45 nm depending on the solvent. Photoluminescence measurements performed on colloidal suspensions of the 45 nm diameter silicon nanoparticles indicated a blue emission signal, attributed to the partial oxidation of the Si nanocrystals or to the presence of nitrogen impurities.< Réduire

DOI

http://dx.doi.org/10.1039/d3nr05793c

Projet Européen

Bottom-up fabrication of nanostructured silicon-based materials with unprecedented optical properties

Project ANR

University of Bordeaux Graduate Scholl in Light Sciences & Technologies - ANR-17-EURE-0027
Advanced Materials by Design - ANR-10-LABX-0042
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

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Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026