Photoluminescence enhancement and quenching of Sm, Au Co-doped TiO 2

Guofei An; Shaohu Jin; Chaoshun Yang; Yawei Zhou; Xiaopeng Zhao

doi:10.1016/j.optmat.2012.06.013

Photoluminescence enhancement and quenching of Sm, Au Co-doped TiO ₂

Guofei An, Shaohu Jin, Chaoshun Yang, Yawei Zhou, Xiaopeng Zhao

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

13 Scopus citations

Abstract

In this study, a novel hybrid nanostructure for enhancing photoluminescence (PL) was prepared by doping samarium (Sm) and gold (Au) into titania (TiO ₂:Sm³⁺:Au) via a simple sol-gel method. The X-ray diffraction and PL results indicate that the sample with better crystallinity has better emitting performance. The dependence of the PL intensity was examined as a function of the concentration of Au nanoparticles (NPs) while keeping the Sm content constant at 2%. It is found that PL enhancement and quenching can be obtained by tuning the content of Au NPs. The PL results suggest that the PL emission of this hybrid system relies on the energy (emitting light) transferred from TiO₂:Sm³⁺ to Au NPs. The plasmon state around Au NPs can be excited to bring out PL enhancement only when the intensity of the transferred energy meets the requirement of Au NPs.

Original language	English
Pages (from-to)	45-49
Number of pages	5
Journal	Optical Materials
Volume	35
Issue number	1
DOIs	https://doi.org/10.1016/j.optmat.2012.06.013
State	Published - Nov 2012

Keywords

Gold nanoparticle
Luminescence enhancement
Rare-earth doping

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10.1016/j.optmat.2012.06.013

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title = "Photoluminescence enhancement and quenching of Sm, Au Co-doped TiO 2",

abstract = "In this study, a novel hybrid nanostructure for enhancing photoluminescence (PL) was prepared by doping samarium (Sm) and gold (Au) into titania (TiO 2:Sm3+:Au) via a simple sol-gel method. The X-ray diffraction and PL results indicate that the sample with better crystallinity has better emitting performance. The dependence of the PL intensity was examined as a function of the concentration of Au nanoparticles (NPs) while keeping the Sm content constant at 2%. It is found that PL enhancement and quenching can be obtained by tuning the content of Au NPs. The PL results suggest that the PL emission of this hybrid system relies on the energy (emitting light) transferred from TiO2:Sm3+ to Au NPs. The plasmon state around Au NPs can be excited to bring out PL enhancement only when the intensity of the transferred energy meets the requirement of Au NPs.",

keywords = "Gold nanoparticle, Luminescence enhancement, Rare-earth doping",

author = "Guofei An and Shaohu Jin and Chaoshun Yang and Yawei Zhou and Xiaopeng Zhao",

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T1 - Photoluminescence enhancement and quenching of Sm, Au Co-doped TiO 2

AU - An, Guofei

AU - Jin, Shaohu

AU - Yang, Chaoshun

AU - Zhou, Yawei

AU - Zhao, Xiaopeng

PY - 2012/11

Y1 - 2012/11

N2 - In this study, a novel hybrid nanostructure for enhancing photoluminescence (PL) was prepared by doping samarium (Sm) and gold (Au) into titania (TiO 2:Sm3+:Au) via a simple sol-gel method. The X-ray diffraction and PL results indicate that the sample with better crystallinity has better emitting performance. The dependence of the PL intensity was examined as a function of the concentration of Au nanoparticles (NPs) while keeping the Sm content constant at 2%. It is found that PL enhancement and quenching can be obtained by tuning the content of Au NPs. The PL results suggest that the PL emission of this hybrid system relies on the energy (emitting light) transferred from TiO2:Sm3+ to Au NPs. The plasmon state around Au NPs can be excited to bring out PL enhancement only when the intensity of the transferred energy meets the requirement of Au NPs.

AB - In this study, a novel hybrid nanostructure for enhancing photoluminescence (PL) was prepared by doping samarium (Sm) and gold (Au) into titania (TiO 2:Sm3+:Au) via a simple sol-gel method. The X-ray diffraction and PL results indicate that the sample with better crystallinity has better emitting performance. The dependence of the PL intensity was examined as a function of the concentration of Au nanoparticles (NPs) while keeping the Sm content constant at 2%. It is found that PL enhancement and quenching can be obtained by tuning the content of Au NPs. The PL results suggest that the PL emission of this hybrid system relies on the energy (emitting light) transferred from TiO2:Sm3+ to Au NPs. The plasmon state around Au NPs can be excited to bring out PL enhancement only when the intensity of the transferred energy meets the requirement of Au NPs.

KW - Gold nanoparticle

KW - Luminescence enhancement

KW - Rare-earth doping

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DO - 10.1016/j.optmat.2012.06.013

M3 - 文章

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SN - 0925-3467

VL - 35

SP - 45

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JO - Optical Materials

JF - Optical Materials

IS - 1

ER -

Photoluminescence enhancement and quenching of Sm, Au Co-doped TiO ₂

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Keywords

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