Quenching of photoluminescence in Zno QDs decorating multiwalled carbon nanotubes

Mrinal Dutta; Santanu Jana; Durga Basak

doi:10.1002/cphc.200900960

Quenching of photoluminescence in Zno QDs decorating multiwalled carbon nanotubes

Mrinal Dutta, Santanu Jana, Durga Basak

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

We report the controlled growth of ZnO quantum dots (QDs) on the sidewalls of multiwalled carbon nanotubes (MWCNTs) by a one-step process and study the effect on the photoluminescence (PL) properties of the ZnO QDs-MWCNT composite. The PL intensity of the composite is quenched and the lifetime is reduced compared to the only ZnO QDs. The origin of the PL quenching is discussed in terms of energy transfer, which is examined by varying the density and size of ZnO QDs by changing the molar concentration of the precursor solution for ZnO and the amount of MWCNT.

Original language	English
Pages (from-to)	1774-1779
Number of pages	6
Journal	ChemPhysChem
Volume	11
Issue number	8
DOIs	https://doi.org/10.1002/cphc.200900960
State	Published - 1 Jan 2010
Externally published	Yes

Keywords

Composite
Energy transfer
Nanotubes
Photoluminescence
Uv/vis spectroscopy

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry

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10.1002/cphc.200900960

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abstract = "We report the controlled growth of ZnO quantum dots (QDs) on the sidewalls of multiwalled carbon nanotubes (MWCNTs) by a one-step process and study the effect on the photoluminescence (PL) properties of the ZnO QDs-MWCNT composite. The PL intensity of the composite is quenched and the lifetime is reduced compared to the only ZnO QDs. The origin of the PL quenching is discussed in terms of energy transfer, which is examined by varying the density and size of ZnO QDs by changing the molar concentration of the precursor solution for ZnO and the amount of MWCNT.",

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AU - Jana, Santanu

AU - Basak, Durga

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Y1 - 2010/1/1

N2 - We report the controlled growth of ZnO quantum dots (QDs) on the sidewalls of multiwalled carbon nanotubes (MWCNTs) by a one-step process and study the effect on the photoluminescence (PL) properties of the ZnO QDs-MWCNT composite. The PL intensity of the composite is quenched and the lifetime is reduced compared to the only ZnO QDs. The origin of the PL quenching is discussed in terms of energy transfer, which is examined by varying the density and size of ZnO QDs by changing the molar concentration of the precursor solution for ZnO and the amount of MWCNT.

AB - We report the controlled growth of ZnO quantum dots (QDs) on the sidewalls of multiwalled carbon nanotubes (MWCNTs) by a one-step process and study the effect on the photoluminescence (PL) properties of the ZnO QDs-MWCNT composite. The PL intensity of the composite is quenched and the lifetime is reduced compared to the only ZnO QDs. The origin of the PL quenching is discussed in terms of energy transfer, which is examined by varying the density and size of ZnO QDs by changing the molar concentration of the precursor solution for ZnO and the amount of MWCNT.

KW - Composite

KW - Energy transfer

KW - Nanotubes

KW - Photoluminescence

KW - Uv/vis spectroscopy

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JO - ChemPhysChem

JF - ChemPhysChem

IS - 8

ER -

Quenching of photoluminescence in Zno QDs decorating multiwalled carbon nanotubes

Abstract

Keywords

ASJC Scopus subject areas

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