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Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method

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Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method. / Acebron, Maria; Herrera, Facundo C.; Mizrahi, Martin; Navio, Cristina; Bernardo-Gavito, Ramon; Granados, Daniel; Requejo, Felix G.; Juarez, Beatriz H.

In: Physical Chemistry Chemical Physics, Vol. 19, No. 3, 21.01.2017, p. 1999-2007.

Research output: Contribution to journalJournal article

Harvard

Acebron, M, Herrera, FC, Mizrahi, M, Navio, C, Bernardo-Gavito, R, Granados, D, Requejo, FG & Juarez, BH 2017, 'Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method' Physical Chemistry Chemical Physics, vol. 19, no. 3, pp. 1999-2007. https://doi.org/10.1039/c6cp06982g

APA

Acebron, M., Herrera, F. C., Mizrahi, M., Navio, C., Bernardo-Gavito, R., Granados, D., ... Juarez, B. H. (2017). Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method. Physical Chemistry Chemical Physics, 19(3), 1999-2007. https://doi.org/10.1039/c6cp06982g

Vancouver

Acebron M, Herrera FC, Mizrahi M, Navio C, Bernardo-Gavito R, Granados D et al. Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method. Physical Chemistry Chemical Physics. 2017 Jan 21;19(3):1999-2007. https://doi.org/10.1039/c6cp06982g

Author

Acebron, Maria ; Herrera, Facundo C. ; Mizrahi, Martin ; Navio, Cristina ; Bernardo-Gavito, Ramon ; Granados, Daniel ; Requejo, Felix G. ; Juarez, Beatriz H. / Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method. In: Physical Chemistry Chemical Physics. 2017 ; Vol. 19, No. 3. pp. 1999-2007.

Bibtex

@article{a305b63fb3ef43589cf4b97be369fdd7,
title = "Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method",
abstract = "The dielectric nature of organic ligands capping semiconductor colloidal nanocrystals (NCs) makes them incompatible with optoelectronic applications. For this reason, these ligands are regularly substituted through ligand-exchange processes by shorter (even atomic) or inorganic ones. In this work, an alternative path is proposed to obtain inorganically coated NCs. Differently to regular ligand exchange processes, the method reported here produces core-shell NCs and the removal of the original organic shell in a single step. This procedure leads to the formation of connected NCs resembling 1D worm-like networks with improved optical properties and polar solubility, in comparison with the initial CdSe NCs. The nature of the inorganic shell has been elucidated by X-ray Absorption Near Edge Structure (XANES), Extended X-ray Absorption Fine Structure (EXAFS) and X-ray Photoelectron Spectroscopy (XPS). The 1D morphology along with the lack of long insulating organic ligands and the higher solubility in polar media turns these structures very attractive for their further integration into optoelectronic devices.",
keywords = "TRIANGULAR CDS NANOCRYSTALS, SULFIDE THIN-FILMS, SURFACE LIGANDS, PROSPECTS, STATE, PASSIVATION, ADSORPTION, MORPHOLOGY, STABILITY, MECHANISM",
author = "Maria Acebron and Herrera, {Facundo C.} and Martin Mizrahi and Cristina Navio and Ramon Bernardo-Gavito and Daniel Granados and Requejo, {Felix G.} and Juarez, {Beatriz H.}",
note = "{\circledC} Royal Society of Chemistry 2017",
year = "2017",
month = "1",
day = "21",
doi = "10.1039/c6cp06982g",
language = "English",
volume = "19",
pages = "1999--2007",
journal = "Physical Chemistry Chemical Physics",
issn = "1463-9076",
publisher = "Royal Society of Chemistry",
number = "3",

}

RIS

TY - JOUR

T1 - Inorganically coated colloidal quantum dots in polar solvents using a microemulsion-assisted method

AU - Acebron, Maria

AU - Herrera, Facundo C.

AU - Mizrahi, Martin

AU - Navio, Cristina

AU - Bernardo-Gavito, Ramon

AU - Granados, Daniel

AU - Requejo, Felix G.

AU - Juarez, Beatriz H.

N1 - © Royal Society of Chemistry 2017

PY - 2017/1/21

Y1 - 2017/1/21

N2 - The dielectric nature of organic ligands capping semiconductor colloidal nanocrystals (NCs) makes them incompatible with optoelectronic applications. For this reason, these ligands are regularly substituted through ligand-exchange processes by shorter (even atomic) or inorganic ones. In this work, an alternative path is proposed to obtain inorganically coated NCs. Differently to regular ligand exchange processes, the method reported here produces core-shell NCs and the removal of the original organic shell in a single step. This procedure leads to the formation of connected NCs resembling 1D worm-like networks with improved optical properties and polar solubility, in comparison with the initial CdSe NCs. The nature of the inorganic shell has been elucidated by X-ray Absorption Near Edge Structure (XANES), Extended X-ray Absorption Fine Structure (EXAFS) and X-ray Photoelectron Spectroscopy (XPS). The 1D morphology along with the lack of long insulating organic ligands and the higher solubility in polar media turns these structures very attractive for their further integration into optoelectronic devices.

AB - The dielectric nature of organic ligands capping semiconductor colloidal nanocrystals (NCs) makes them incompatible with optoelectronic applications. For this reason, these ligands are regularly substituted through ligand-exchange processes by shorter (even atomic) or inorganic ones. In this work, an alternative path is proposed to obtain inorganically coated NCs. Differently to regular ligand exchange processes, the method reported here produces core-shell NCs and the removal of the original organic shell in a single step. This procedure leads to the formation of connected NCs resembling 1D worm-like networks with improved optical properties and polar solubility, in comparison with the initial CdSe NCs. The nature of the inorganic shell has been elucidated by X-ray Absorption Near Edge Structure (XANES), Extended X-ray Absorption Fine Structure (EXAFS) and X-ray Photoelectron Spectroscopy (XPS). The 1D morphology along with the lack of long insulating organic ligands and the higher solubility in polar media turns these structures very attractive for their further integration into optoelectronic devices.

KW - TRIANGULAR CDS NANOCRYSTALS

KW - SULFIDE THIN-FILMS

KW - SURFACE LIGANDS

KW - PROSPECTS

KW - STATE

KW - PASSIVATION

KW - ADSORPTION

KW - MORPHOLOGY

KW - STABILITY

KW - MECHANISM

U2 - 10.1039/c6cp06982g

DO - 10.1039/c6cp06982g

M3 - Journal article

VL - 19

SP - 1999

EP - 2007

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

SN - 1463-9076

IS - 3

ER -