Inorganically functionalized PbS-CdS colloidal nanocrystals: Integration into amorphous chalcogenide glass and luminescent properties

Maksym V. Kovalenko, Richard D Schaller, Dorota Jarzab, Maria A. Loi, Dmitri V. Talapin

Research output: Contribution to journalArticle

104 Citations (Scopus)

Abstract

Inorganic semiconductor nanocrystals (NCs) with bright, stable, and wavelength-tunable luminescence are very promising emitters for various photonic and optoelectronic applications. Recently developed strategies for inorganic surface capping of colloidal NCs using metal chalcogenide complexes have opened new perspectives for their applications. Here we report an all-inorganic surface functionalization of highly luminescent IR-emitting PbS-CdS NCs and studies of their luminescence properties. We show that inorganic capping allows simple low-temperature encapsulation of inorganic NCs into a solution-cast IR-transparent amorphous As 2S 3 matrix. The resulting all-inorganic thin films feature stable IR luminescence in the telecommunication wavelength region. The high optical dielectric constant of As 2S 3 also helps reduce the dielectric screening of the radiating field inside the quantum dot, enabling fast radiative recombination in PbS-CdS NCs.

Original languageEnglish
Pages (from-to)2457-2460
Number of pages4
JournalJournal of the American Chemical Society
Volume134
Issue number5
DOIs
Publication statusPublished - Feb 8 2012

Fingerprint

Nanoparticles
Nanocrystals
Glass
Luminescence
Quantum Dots
Optics and Photonics
Telecommunications
Coordination Complexes
Wavelength
Genetic Recombination
Metal complexes
Encapsulation
Optoelectronic devices
Photonics
Semiconductor quantum dots
Telecommunication
Screening
Permittivity
Temperature
Semiconductor materials

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Inorganically functionalized PbS-CdS colloidal nanocrystals : Integration into amorphous chalcogenide glass and luminescent properties. / Kovalenko, Maksym V.; Schaller, Richard D; Jarzab, Dorota; Loi, Maria A.; Talapin, Dmitri V.

In: Journal of the American Chemical Society, Vol. 134, No. 5, 08.02.2012, p. 2457-2460.

Research output: Contribution to journalArticle

@article{a7e3478b077b4b43a52e9d01fe493aca,
title = "Inorganically functionalized PbS-CdS colloidal nanocrystals: Integration into amorphous chalcogenide glass and luminescent properties",
abstract = "Inorganic semiconductor nanocrystals (NCs) with bright, stable, and wavelength-tunable luminescence are very promising emitters for various photonic and optoelectronic applications. Recently developed strategies for inorganic surface capping of colloidal NCs using metal chalcogenide complexes have opened new perspectives for their applications. Here we report an all-inorganic surface functionalization of highly luminescent IR-emitting PbS-CdS NCs and studies of their luminescence properties. We show that inorganic capping allows simple low-temperature encapsulation of inorganic NCs into a solution-cast IR-transparent amorphous As 2S 3 matrix. The resulting all-inorganic thin films feature stable IR luminescence in the telecommunication wavelength region. The high optical dielectric constant of As 2S 3 also helps reduce the dielectric screening of the radiating field inside the quantum dot, enabling fast radiative recombination in PbS-CdS NCs.",
author = "Kovalenko, {Maksym V.} and Schaller, {Richard D} and Dorota Jarzab and Loi, {Maria A.} and Talapin, {Dmitri V.}",
year = "2012",
month = "2",
day = "8",
doi = "10.1021/ja2087689",
language = "English",
volume = "134",
pages = "2457--2460",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Inorganically functionalized PbS-CdS colloidal nanocrystals

T2 - Integration into amorphous chalcogenide glass and luminescent properties

AU - Kovalenko, Maksym V.

AU - Schaller, Richard D

AU - Jarzab, Dorota

AU - Loi, Maria A.

AU - Talapin, Dmitri V.

PY - 2012/2/8

Y1 - 2012/2/8

N2 - Inorganic semiconductor nanocrystals (NCs) with bright, stable, and wavelength-tunable luminescence are very promising emitters for various photonic and optoelectronic applications. Recently developed strategies for inorganic surface capping of colloidal NCs using metal chalcogenide complexes have opened new perspectives for their applications. Here we report an all-inorganic surface functionalization of highly luminescent IR-emitting PbS-CdS NCs and studies of their luminescence properties. We show that inorganic capping allows simple low-temperature encapsulation of inorganic NCs into a solution-cast IR-transparent amorphous As 2S 3 matrix. The resulting all-inorganic thin films feature stable IR luminescence in the telecommunication wavelength region. The high optical dielectric constant of As 2S 3 also helps reduce the dielectric screening of the radiating field inside the quantum dot, enabling fast radiative recombination in PbS-CdS NCs.

AB - Inorganic semiconductor nanocrystals (NCs) with bright, stable, and wavelength-tunable luminescence are very promising emitters for various photonic and optoelectronic applications. Recently developed strategies for inorganic surface capping of colloidal NCs using metal chalcogenide complexes have opened new perspectives for their applications. Here we report an all-inorganic surface functionalization of highly luminescent IR-emitting PbS-CdS NCs and studies of their luminescence properties. We show that inorganic capping allows simple low-temperature encapsulation of inorganic NCs into a solution-cast IR-transparent amorphous As 2S 3 matrix. The resulting all-inorganic thin films feature stable IR luminescence in the telecommunication wavelength region. The high optical dielectric constant of As 2S 3 also helps reduce the dielectric screening of the radiating field inside the quantum dot, enabling fast radiative recombination in PbS-CdS NCs.

UR - http://www.scopus.com/inward/record.url?scp=84856713966&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84856713966&partnerID=8YFLogxK

U2 - 10.1021/ja2087689

DO - 10.1021/ja2087689

M3 - Article

C2 - 22239647

AN - SCOPUS:84856713966

VL - 134

SP - 2457

EP - 2460

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 5

ER -