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

Journal Article · · Lab on a Chip
DOI: https://doi.org/10.1039/d0lc00213e · OSTI ID:1616630
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Chemical Engineering; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Chemistry
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Chemistry
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Chemical Engineering

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.

Research Organization:
Clemson Univ., SC (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
FG02-07ER46456
OSTI ID:
1616630
Alternate ID(s):
OSTI ID: 1800520
Journal Information:
Lab on a Chip, Vol. 20, Issue 11; ISSN 1473-0197
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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