Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 18, 2019
Previous Article Next Article

Synthesis and characterization of Ag2S and Ag2S/Ag2(S,Se) NIR nanocrystals

Author affiliations

Abstract

Syntheses of metal sulfide nanocrystals (NCs) by heat-up routes in the presence of thiols yield NC arrangements difficult to further functionalize and transfer to aqueous media. By means of different NMR techniques, and exemplified by Ag2S NCs, a metal–organic polymer formed during the synthesis acting as a ligand has been identified to be responsible for such aggregation. In this work, a new synthetic hot-injection strategy is presented to synthesize Ag2S NCs which are easily ligand exchangeable in water. Furthermore, the hot-injection route allows an extra NC treatment with Se to produce Ag2S/Ag2(S,Se) NCs with improved optical properties with respect to the Ag2S cores, and better resistance to oxidation, as demonstrated by X-ray absorption experiments.

Graphical abstract: Synthesis and characterization of Ag2S and Ag2S/Ag2(S,Se) NIR nanocrystals

Back to tab navigation

Supplementary files

Article information


Submitted
10 Mar 2019
Accepted
05 Apr 2019
First published
09 Apr 2019

Nanoscale, 2019,11, 9194-9200
Article type
Paper

Synthesis and characterization of Ag2S and Ag2S/Ag2(S,Se) NIR nanocrystals

D. Ruiz, M. Mizrahi, H. D. A. Santos, D. Jaque, C. M. S. Jones, J. Marqués-Hueso, C. Jacinto, F. G. Requejo, A. Torres-Pardo, J. M. González-Calbet and B. H. Juárez, Nanoscale, 2019, 11, 9194
DOI: 10.1039/C9NR02087J

Social activity

Search articles by author

Spotlight

Advertisements