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Optical and photoluminescence studies of gold nanoparticles embedded ZnO thin films
V. Damodara das,
Published in
2009
Volume: 518
   
Issue: 5
Pages: 1399 - 1401
Abstract
Gold nanoparticles (AuNPs) embedded ZnO thin films were prepared by sandwiching a thin thermally evaporated Au film between two sputtered ZnO films. The films were characterized by high resolution transmission electron microscopy (HRTEM), glancing angle X-ray diffraction (GXRD), optical absorption and photoluminescence (PL) measurements. GXRD data exhibited peaks which were attributed to the reflections from various ZnO and Au planes. Size dependence of the plasmon absorption was studied by forming nanoparticles with various sizes. Optical absorption spectra showed strong absorption due to localized surface plasmons at about 608, 638 and 676 nm for films having average AuNPs sizes of 27, 40 and 67 nm respectively. AuNPs embedded ZnO film showed a strong reduction in the intensity of photoluminescence, which was prominent in the case of pure ZnO film. The rise in temperature at a single nanoparticle site was calculated to be 22 K for a particle size of 80 nm. © 2009 Elsevier B.V. All rights reserved.
About the journal
JournalThin Solid Films
ISSN00406090
Open AccessNo
Concepts (31)
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    AU FILM
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    Glancing angle x-ray diffractions
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    Gold nanoparticle
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    Gold nanoparticles
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    LOCALIZED SURFACE PLASMON
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    Optical absorption
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    OPTICAL ABSORPTION SPECTRUM
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    PLASMON ABSORPTION
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    Pure zno
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    Single nanoparticle
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    SIZE DEPENDENCE
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    Transparent conducting oxide
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    Zno
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    Zno films
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    Zno thin film
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    Absorption
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    High resolution transmission electron microscopy
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    Light absorption
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    Light transmission
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    Metallic films
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    Nanoparticles
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    OPTICAL DATA STORAGE
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    Optical films
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    Photoluminescence
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    Plasmons
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    Semiconducting zinc compounds
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    Semiconductor quantum wells
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    Surface plasmon resonance
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    Thin films
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    Zinc oxide
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    Gold