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Nanocrystal synthesis, μfluidic sample dilution and direct extraction of single emission linewidths in continuous flow

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Abstract

The rational design of semiconductor nanocrystal populations requires control of their emission linewidths, which are dictated by interparticle inhomogeneities and single-nanocrystal spectral linewidths. To date, research efforts have concentrated on minimizing the ensemble emission linewidths, however there is little knowledge about the synthetic parameters dictating single-nanocrystal linewidths. In this direction, we present a flow-based system coupled with an optical interferometry setup for the extraction of single nanocrystal properties. The platform has the ability to synthesize nanocrystals at high temperature <300 °C, adjust the particle concentration after synthesis and extract ensemble-averaged single nanocrystal emission linewidths using flow photon-correlation Fourier spectroscopy.

Graphical abstract: Nanocrystal synthesis, μfluidic sample dilution and direct extraction of single emission linewidths in continuous flow

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Supplementary files

Article information


Submitted
03 Mar 2020
Accepted
24 Apr 2020
First published
30 Apr 2020

This article is Open Access

Lab Chip, 2020, Advance Article
Article type
Paper

Nanocrystal synthesis, μfluidic sample dilution and direct extraction of single emission linewidths in continuous flow

I. Lignos, H. Utzat, M. G. Bawendi and K. F. Jensen, Lab Chip, 2020, Advance Article , DOI: 10.1039/D0LC00213E

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