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Cited by 321Quantum Dots Synthesis And PropertiesPhotonic Crystals and ApplicationsSemiconductor Quantum Structures and Devices

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Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals

Schaller, R. D., Petruska, M. A., Klimov, V. I.·2003·The Journal of Physical Chemistry B
DOI 10.1021/jp0311660
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Abstract

Here, for the first time, we demonstrate amplified spontaneous emission (ASE) from PbSe nanocrystals (NCs) with emission energies tunable in the near-infrared (IR). We show that despite complications associated with a high, 8-fold degeneracy of the lowest quantized states and fast, nonradiative Auger recombination, optical gain parameters of PbSe NCs are comparable to those of CdSe NCs used for light amplification in the visible. These results indicate that previous unsuccessful attempts to realize the lasing regime in NCs of lead salts were not due to intrinsic physical reasons but likely resulted from material quality issues. By using a novel sol−gel procedure that provides both good quality surface passivation and high NC filling factors (>15%), we fabricate PbSe NC/sol−gel nanocomposites that produce ASE, which is tunable via NC size, in the near-IR. This finding indicates the feasibility of NC-based amplifiers and lasers tunable in the near-IR range and, in particular, in the range of telecommunication windows.

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Crossref · 10.1021/jp0311660

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  • It has already been demonstrated amplification and lasing using PbSe QDs, CdSe-ZnS, and CdS-CdSe-ZnS core-shell QDs dispersed in sol-gel films of TiO2 and ZrO2 planar waveguides.

    “It has already been demonstrated amplification and lasing using PbSe QDs [32], CdSe-ZnS [33], and CdS-CdSe-ZnS [34] core-shell QDs dispersed in sol-gel films of TiO 2 and ZrO 2 planar waveguides.”

    From Polymer/QDs Nanocomposites for Waveguiding Applications (2012) · cites this paper as [32]

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Research works printed but not linked: 21

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Cited by

Sorted by citations

  • Polymer/QDs Nanocomposites for Waveguiding Applications

    Gordillo, H., Suárez, I., Abargues, R., Rodríguez-Cantó, P., Albert, S., & Martínez-Pastor, J. P. (2012) · Journal of Nanomaterials · doi:10.1155/2012/960201 · Cited by 49

    “It has already been demonstrated amplification and lasing using PbSe QDs [32], CdSe-ZnS [33], and CdS-CdSe-ZnS [34] core-shell QDs dispersed in sol-gel films of TiO2 and ZrO2 planar waveguides.”
    Method

Metadata

Authors
Schaller, R. D., Petruska, M. A., & Klimov, V. I.
Affiliations
Los Alamos National Laboratory (US)
Corresponding author
Klimov, V. I.
ORCID
Venue
The Journal of Physical Chemistry B
Publisher
American Chemical Society (ACS)
Published
2003-11-21
Volume
107
Issue
50
Pages
13765-13768
ISSN
  • 1520-5207 (ISSN-L)
  • 1520-6106
DOI
10.1021/jp0311660
OpenAlex
W2133781275
Cited by
321
References
0
Citations by year
2026: 4 · 2025: 4 · 2024: 6 · 2023: 15 · 2022: 4 · 2021: 5 · 2020: 5 · 2019: 8 · 2018: 9 · 2017: 13 · 2016: 15 · 2015: 13 · 2014: 14 · 2013: 11 · 2012: 14
FWCI
12.93
Type
journal article
Language
en
Open access
closed
Locations
The Journal of Physical Chemistry B (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Quantum Dots Synthesis And Properties
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Photonic Crystals and Applications
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
Keywords
PbSe nanocrystals, amplified spontaneous emission, tunable emission, lead salts, sol-gel nanocomposites, surface passivation, Auger recombination, telecommunication window

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