Jump to main content
Jump to site search

Issue 35, 2018
Previous Article Next Article

Optical properties and structure of Ag-doped InP quantum dots prepared by a phosphine synthetic route

Author affiliations

Abstract

We report a novel technique for doping InP quantum dots (QDs) with silver that makes use of a AgCl·TOP complex as a source of silver and PH3 as a phosphorus precursor. Formation of two types of nanoparticles in the reaction mixture is observed: Ag-doped InP QDs form at lower silver concentrations and novel Ag/InP core–shell nanostructures form at high Ag-precursor concentrations. Ag-doped QDs possess two luminescent bands: an excitonic band at approx. 670 nm and an IR-band, indicative of dopant luminescence, at approx. 900 nm. Post-synthetic covering of the quantum dots with ZnS leads to a significant increase in both types of luminescence. The core–shell Ag/InP nanoparticles did not emit any luminescence in the visible and near-IR spectral regions.

Graphical abstract: Optical properties and structure of Ag-doped InP quantum dots prepared by a phosphine synthetic route

Back to tab navigation

Publication details

The article was received on 13 Jun 2018, accepted on 08 Aug 2018 and first published on 09 Aug 2018


Article type: Paper
DOI: 10.1039/C8DT02434K
Citation: Dalton Trans., 2018,47, 12414-12419
  •   Request permissions

    Optical properties and structure of Ag-doped InP quantum dots prepared by a phosphine synthetic route

    A. Vinokurov, G. Chernysheva, N. Mordvinova and S. Dorofeev, Dalton Trans., 2018, 47, 12414
    DOI: 10.1039/C8DT02434K

Search articles by author

Spotlight

Advertisements