Plasmonic Modulation of the Upconversion Fluorescence in NaYF4:Yb/Tm Hexaplate Nanocrystals Using Gold Nanoparticles or Nanoshells

被引：323

作者：

Zhang, Hua ^{[1
]}

Li, Yujing ^{[1
]}

Ivanov, Ivan A. ^{[2
]}

Qu, Yongquan ^{[2
]}

Huang, Yu ^{[1
,3
]}

Duan, Xiangfeng ^{[2
,3
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Calif Nanosyst Inst, Los Angeles, CA 90095 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 16期

关键词：

fluorescence; nanoparticles; rare earth metals; surface plasmon resonance; upconversion; ENHANCED RAMAN-SCATTERING; PHOSPHOR REPORTERS; SURFACE; ABSORPTION; PARTICLES; DYNAMICS; BIOLOGY; FIELDS; ARRAYS; SIZE;

D O I：

10.1002/anie.200905805

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Automatic upgrade: Attachment of gold nanoparticles (NPs) onto upconversion nanocrystals (NCs) results in plasmonic interactions that lead to a significant enhancement of upconversion emission of more than 2.5. Conversely. formation of a gold shell greatly suppresses the NC emission because of considerable scattering of excitation irradiation (see picture; a = NC before seed attachment; b.c=NCwith attached Au NPs; C=NC with Au shell; scale bar=50 nm). © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：2865 / 2868

页数：4

共 27 条

[1] Fluid assisted assembly of one-dimensional nanoparticle array inside inorganic nanotubes [J].

Bai, Jingwei ;

Huang, Suxian ;

Wang, Leyu ;

Chen, Yong ;

Huang, Yu .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (07) :921-923

[2] Surface plasmon subwavelength optics [J].

Barnes, WL ;

Dereux, A ;

Ebbesen, TW .

NATURE, 2003, 424 (6950) :824-830

[3] Synthesis of colloidal upconverting NaYF4: Er3+/Yb3+ and Tm3+/Yb3+ monodisperse nanocrystals [J].

Boyer, John-Christopher ;

Cuccia, Louis A. ;

Capobianco, John A. .

NANO LETTERS, 2007, 7 (03) :847-852

[4] Surface-enhanced Raman scattering [J].

Campion, A ;

Kambhampati, P .

CHEMICAL SOCIETY REVIEWS, 1998, 27 (04) :241-250

[5] Upconversion fluorescence imaging of cells and small animals using lanthanide doped nanocrystals [J].

Chatteriee, Dev K. ;

Rufalhah, Abdul J. ;

Zhang, Yong .

BIOMATERIALS, 2008, 29 (07) :937-943

[6] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology [J].

Daniel, MC ;

Astruc, D .

CHEMICAL REVIEWS, 2004, 104 (01) :293-346

[7] Femtosecond transient absorption dynamics of close-packed gold nanocrystal monolayer arrays [J].

Eah, SK ;

Jaeger, HM ;

Scherer, NF ;

Lin, XM ;

Wiederrecht, GP .

CHEMICAL PHYSICS LETTERS, 2004, 386 (4-6) :390-395

[8] Why gold nanoparticles are more precious than pretty gold: Noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes [J].

Eustis, S ;

El-Sayed, MA .

CHEMICAL SOCIETY REVIEWS, 2006, 35 (03) :209-217

[9] Electronic relaxation dynamics in coupled metal nanoparticles [J].

Feldstein, MJ ;

Keating, CD ;

Liau, YH ;

Natan, MJ ;

Scherer, NF .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (28) :6638-6647

[10] Multiphoton excitation of fluorescence near metallic particles: Enhanced and localized excitation [J].

Gryczynski, I ;

Malicka, J ;

Shen, YB ;

Gryczynski, Z ;

Lakowicz, JR .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (09) :2191-2195

← 1 2 3 →