Upconversion emission enhancement of Gd 3+ ions induced by surface plasmon field in Au@NaYF 4 nanostructures codoped with Gd 3+-Yb 3+-Tm 3+ ions

Tao Jiang; Ye Liu; Shusen Liu; Ning Liu; Weiping Qin

doi:10.1016/j.jcis.2012.03.076

Upconversion emission enhancement of Gd ³⁺ ions induced by surface plasmon field in Au@NaYF ₄ nanostructures codoped with Gd ³⁺-Yb ³⁺-Tm ³⁺ ions

Tao Jiang, Ye Liu, Shusen Liu, Ning Liu, Weiping Qin

Jilin University

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

Abstract

Au nanoparticles (NPs) attached β-NaYF ₄ nanocrystals codoped with Gd ³⁺-Yb ³⁺-Tm ³⁺ were synthesized by a facial solution method. The UV-vis-near-infrared absorption spectrum shows typical surface plasmon resonance band of Au NPs in addition to the characteristic absorption peaks of Yb ³⁺ ion. X-ray diffraction and selected area electron diffraction results indicate the existence of Au NPs. The transmission electron microscopic image reveals the formation of Au@NaYF ₄ nanostructures. Enhanced ultraviolet (UV) upconversion luminescence (UCL) was observed in the nanostructures under the excitation of 980-nm infrared laser. The largest enhancement factor was obtained as 76 for the ⁶I _J→ ⁸S _7/2 emission of Gd ³⁺ ions, which was much larger than those emission enhancement factors of Tm ³⁺. It is for the first time to our knowledge that the emission enhancement of Gd ³⁺ ions was obtained. Local field enhancement induced by Au NPs was found to be responsible for the UCL enhancement, which is the further experimental evidence of local field enhancement theory. Magnetic measurements of the Au@NaYF ₄ nanostructure indicated it would have potential application in magnetic resonance imaging.

Original language	English
Pages (from-to)	81-87
Number of pages	7
Journal	Journal of Colloid and Interface Science
Volume	377
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2012.03.076
Publication status	Published - 1 Jul 2012
Externally published	Yes

Keywords

Au nanoparticles
Energy transfer
Gd ions
Luminescence enhancement

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title = "Upconversion emission enhancement of Gd 3+ ions induced by surface plasmon field in Au@NaYF 4 nanostructures codoped with Gd 3+-Yb 3+-Tm 3+ ions",

abstract = "Au nanoparticles (NPs) attached β-NaYF 4 nanocrystals codoped with Gd 3+-Yb 3+-Tm 3+ were synthesized by a facial solution method. The UV-vis-near-infrared absorption spectrum shows typical surface plasmon resonance band of Au NPs in addition to the characteristic absorption peaks of Yb 3+ ion. X-ray diffraction and selected area electron diffraction results indicate the existence of Au NPs. The transmission electron microscopic image reveals the formation of Au@NaYF 4 nanostructures. Enhanced ultraviolet (UV) upconversion luminescence (UCL) was observed in the nanostructures under the excitation of 980-nm infrared laser. The largest enhancement factor was obtained as 76 for the 6I J→ 8S 7/2 emission of Gd 3+ ions, which was much larger than those emission enhancement factors of Tm 3+. It is for the first time to our knowledge that the emission enhancement of Gd 3+ ions was obtained. Local field enhancement induced by Au NPs was found to be responsible for the UCL enhancement, which is the further experimental evidence of local field enhancement theory. Magnetic measurements of the Au@NaYF 4 nanostructure indicated it would have potential application in magnetic resonance imaging.",

keywords = "Au nanoparticles, Energy transfer, Gd ions, Luminescence enhancement",

author = "Tao Jiang and Ye Liu and Shusen Liu and Ning Liu and Weiping Qin",

year = "2012",

month = jul,

day = "1",

doi = "10.1016/j.jcis.2012.03.076",

language = "English",

volume = "377",

pages = "81--87",

journal = "Journal of Colloid and Interface Science",

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TY - JOUR

T1 - Upconversion emission enhancement of Gd 3+ ions induced by surface plasmon field in Au@NaYF 4 nanostructures codoped with Gd 3+-Yb 3+-Tm 3+ ions

AU - Jiang, Tao

AU - Liu, Ye

AU - Liu, Shusen

AU - Liu, Ning

AU - Qin, Weiping

PY - 2012/7/1

Y1 - 2012/7/1

N2 - Au nanoparticles (NPs) attached β-NaYF 4 nanocrystals codoped with Gd 3+-Yb 3+-Tm 3+ were synthesized by a facial solution method. The UV-vis-near-infrared absorption spectrum shows typical surface plasmon resonance band of Au NPs in addition to the characteristic absorption peaks of Yb 3+ ion. X-ray diffraction and selected area electron diffraction results indicate the existence of Au NPs. The transmission electron microscopic image reveals the formation of Au@NaYF 4 nanostructures. Enhanced ultraviolet (UV) upconversion luminescence (UCL) was observed in the nanostructures under the excitation of 980-nm infrared laser. The largest enhancement factor was obtained as 76 for the 6I J→ 8S 7/2 emission of Gd 3+ ions, which was much larger than those emission enhancement factors of Tm 3+. It is for the first time to our knowledge that the emission enhancement of Gd 3+ ions was obtained. Local field enhancement induced by Au NPs was found to be responsible for the UCL enhancement, which is the further experimental evidence of local field enhancement theory. Magnetic measurements of the Au@NaYF 4 nanostructure indicated it would have potential application in magnetic resonance imaging.

AB - Au nanoparticles (NPs) attached β-NaYF 4 nanocrystals codoped with Gd 3+-Yb 3+-Tm 3+ were synthesized by a facial solution method. The UV-vis-near-infrared absorption spectrum shows typical surface plasmon resonance band of Au NPs in addition to the characteristic absorption peaks of Yb 3+ ion. X-ray diffraction and selected area electron diffraction results indicate the existence of Au NPs. The transmission electron microscopic image reveals the formation of Au@NaYF 4 nanostructures. Enhanced ultraviolet (UV) upconversion luminescence (UCL) was observed in the nanostructures under the excitation of 980-nm infrared laser. The largest enhancement factor was obtained as 76 for the 6I J→ 8S 7/2 emission of Gd 3+ ions, which was much larger than those emission enhancement factors of Tm 3+. It is for the first time to our knowledge that the emission enhancement of Gd 3+ ions was obtained. Local field enhancement induced by Au NPs was found to be responsible for the UCL enhancement, which is the further experimental evidence of local field enhancement theory. Magnetic measurements of the Au@NaYF 4 nanostructure indicated it would have potential application in magnetic resonance imaging.

KW - Au nanoparticles

KW - Energy transfer

KW - Gd ions

KW - Luminescence enhancement

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Upconversion emission enhancement of Gd ³⁺ ions induced by surface plasmon field in Au@NaYF ₄ nanostructures codoped with Gd ³⁺-Yb ³⁺-Tm ³⁺ ions

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