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Journal of Nanophotonics

Förster resonance energy transfer between individual semiconductor nanocrystals and an InP film
Author(s): Chiara Sinito; Xavier Quelin; Nathalie Simon; Pierrick Gautier; Anne-Marie Gonçalves; Stéphanie Buil; Jean-Pierre Hermier; Damien Aureau
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Paper Abstract

The modification of the radiative decay of a single emitter in close vicinity to a dielectric interface is investigated by studying the photoluminescence (PL) decay dynamics of colloidal semiconductor nanocrystals (NCs) deposited on semiconductor surfaces. The PL decay lifetimes of single CdSe/CdS NCs spin-coated on InP surfaces passivated with thin oxide layers are measured. Electrochemical passivation of the InP surfaces with oxide layers of different thicknesses enables to study the influence of the distance between the semiconductor surface and the NC on the lifetime. A shortening of the PL decay lifetimes of the NCs with respect to their lifetimes on glass strongly suggests the opening of recombination channels for the photogenerated exciton, which we attribute to energy transfer between the NC and the semiconductor. We also experimentally show the influence of the orientation of the NC with respect to the semiconductor surface on the coupling.

Paper Details

Date Published: 1 December 2016
PDF: 12 pages
J. Nanophoton. 10(4) 046014 doi: 10.1117/1.JNP.10.046014
Published in: Journal of Nanophotonics Volume 10, Issue 4
Show Author Affiliations
Chiara Sinito, Paul-Drude-Institut für Festkörperelektronik (France)
Univ. de Versailles Saint-Quentin-en-Yvelines (France)
Xavier Quelin, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Nathalie Simon, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Pierrick Gautier, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Anne-Marie Gonçalves, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Stéphanie Buil, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Jean-Pierre Hermier, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Institut Universitaire de France (France)
Damien Aureau, Univ. de Versailles Saint-Quentin-en Yvelines (France)

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