Enhanced Fluorescence, Raman Scattering, and Higher Order Raman Modes in ZnO:Ag Nanorods

R. Udayabhaskar; R. V. Mangalaraja; B. Karthikeyan

doi:10.1007/s11468-015-9877-6

Enhanced Fluorescence, Raman Scattering, and Higher Order Raman Modes in ZnO:Ag Nanorods

R. Udayabhaskar, R. V. Mangalaraja, B. Karthikeyan

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

8 Scopus citations

Abstract

We report exciton and phonon properties of pure and Ag-modified ZnO nanostructures are prepared using solution-based refluxing route. X-ray diffraction studies show lower angle shift in the characteristic diffraction peaks of ZnO. Additional diffraction peaks related to nano-sized Ag were observed from XRD. Broad absorption band (which covers the 400–1000 nm range) results from surface plasmon resonance (SPR) absorption of metallic silver is observed from optical absorption studies. Enhancement in luminescence and Raman scattering is observed in Ag-modified sample when compared with pure ZnO sample. This is attributed to the presence of metallic Ag in the samples, and we attempted to understand the observed enhancement from the perspective of the local field associated with the metal nanoparticles.

Original language	English
Pages (from-to)	893-899
Number of pages	7
Journal	Plasmonics
Volume	10
Issue number	4
DOIs	https://doi.org/10.1007/s11468-015-9877-6
State	Published - 24 Aug 2015
Externally published	Yes

Keywords

Enhanced Raman scattering
Enhanced photoluminescence
Local field
Metal nanoparticle
Metaloxide:metal

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10.1007/s11468-015-9877-6

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title = "Enhanced Fluorescence, Raman Scattering, and Higher Order Raman Modes in ZnO:Ag Nanorods",

abstract = "We report exciton and phonon properties of pure and Ag-modified ZnO nanostructures are prepared using solution-based refluxing route. X-ray diffraction studies show lower angle shift in the characteristic diffraction peaks of ZnO. Additional diffraction peaks related to nano-sized Ag were observed from XRD. Broad absorption band (which covers the 400–1000 nm range) results from surface plasmon resonance (SPR) absorption of metallic silver is observed from optical absorption studies. Enhancement in luminescence and Raman scattering is observed in Ag-modified sample when compared with pure ZnO sample. This is attributed to the presence of metallic Ag in the samples, and we attempted to understand the observed enhancement from the perspective of the local field associated with the metal nanoparticles.",

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AU - Udayabhaskar, R.

AU - Mangalaraja, R. V.

AU - Karthikeyan, B.

PY - 2015/8/24

Y1 - 2015/8/24

N2 - We report exciton and phonon properties of pure and Ag-modified ZnO nanostructures are prepared using solution-based refluxing route. X-ray diffraction studies show lower angle shift in the characteristic diffraction peaks of ZnO. Additional diffraction peaks related to nano-sized Ag were observed from XRD. Broad absorption band (which covers the 400–1000 nm range) results from surface plasmon resonance (SPR) absorption of metallic silver is observed from optical absorption studies. Enhancement in luminescence and Raman scattering is observed in Ag-modified sample when compared with pure ZnO sample. This is attributed to the presence of metallic Ag in the samples, and we attempted to understand the observed enhancement from the perspective of the local field associated with the metal nanoparticles.

AB - We report exciton and phonon properties of pure and Ag-modified ZnO nanostructures are prepared using solution-based refluxing route. X-ray diffraction studies show lower angle shift in the characteristic diffraction peaks of ZnO. Additional diffraction peaks related to nano-sized Ag were observed from XRD. Broad absorption band (which covers the 400–1000 nm range) results from surface plasmon resonance (SPR) absorption of metallic silver is observed from optical absorption studies. Enhancement in luminescence and Raman scattering is observed in Ag-modified sample when compared with pure ZnO sample. This is attributed to the presence of metallic Ag in the samples, and we attempted to understand the observed enhancement from the perspective of the local field associated with the metal nanoparticles.

KW - Enhanced Raman scattering

KW - Enhanced photoluminescence

KW - Local field

KW - Metal nanoparticle

KW - Metaloxide:metal

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JO - Plasmonics

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Enhanced Fluorescence, Raman Scattering, and Higher Order Raman Modes in ZnO:Ag Nanorods

Abstract

Keywords

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