Off-resonance surface plasmon enhanced spontaneous emission from CdTe quantum dots

被引：110

作者：

Komarala, Vamsi K. ^{[1
]}

Rakovich, Yury P.

Bradley, A. L.

Byrne, Stephen J.

Gun'ko, Yurii K.

Gaponik, N.

Eychmueller, A.

机构：

[1] Univ Dublin Trinity Coll, Sch Phys, Semicond Photon Grp, Dublin 2, Ireland

[2] Univ Dublin Trinity Coll, Sch Chem, Dublin 2, Ireland

[3] Univ Hamburg, Inst Chem Phys, D-20146 Hamburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 25期

基金：

爱尔兰科学基金会;

关键词：

D O I：

10.1063/1.2422906

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Surface plasmon (SP) enhanced photoluminescence (PL) from CdTe quantum dots (QDs) on monolayers of Au nanoparticles is investigated under both resonant and nonresonant conditions. Enhancement of the QD PL intensity is observed when the emission spectrum is redshifted with respect to the SP absorption resonance. Coupling to the SPs results in a redshift and broadening of the PL spectrum, and an increase in the PL decay rate. The largest coupling is observed for QD monolayers with peak emission at 667 nm, producing a ten fold increase in PL intensity. No change in PL intensity and decay rate is observed at the SP resonance. (c) 2006 American Institute of Physics.

引用

页数：3

共 22 条

[1] Enhancement and quenching of single-molecule fluorescence [J].

Anger, P ;

Bharadwaj, P ;

Novotny, L .

PHYSICAL REVIEW LETTERS, 2006, 96 (11)

[2] Spectral tuning of plasmon-enhanced silicon quantum dot luminescence [J].

Biteen, JS ;

Lewis, NS ;

Atwater, HA ;

Mertens, H ;

Polman, A .

APPLIED PHYSICS LETTERS, 2006, 88 (13)

[3] Optimisation of the synthesis and modification of CdTe quantum dots for enhanced live cell imaging [J].

Byrne, Stephen J. ;

Corr, Serena A. ;

Rakovich, Tatsiana Y. ;

Gun'ko, Yurii K. ;

Rakovich, Yury P. ;

Donegan, John F. ;

Mitchell, Siobhan ;

Volkov, Yuri .

JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (28) :2896-2902

[4]

Caruso F, 2001, ADV MATER, V13, P11, DOI 10.1002/1521-4095(200101)13:1<11::AID-ADMA11>3.0.CO

[5]

2-N

[6] Fuzzy nanoassemblies: Toward layered polymeric multicomposites [J].

Decher, G .

SCIENCE, 1997, 277 (5330) :1232-1237

[7] Gold nanoparticles quench fluorescence by phase induced radiative rate suppression [J].

Dulkeith, E ;

Ringler, M ;

Klar, TA ;

Feldmann, J ;

Javier, AM ;

Parak, WJ .

NANO LETTERS, 2005, 5 (04) :585-589

[8] High-rate unidirectional energy transfer in directly assembled CdTe nanocrystal bilayers [J].

Franzl, T ;

Shavel, A ;

Rogach, AL ;

Gaponik, N ;

Klar, TA ;

Eychmüller, A ;

Feldmann, J .

SMALL, 2005, 1 (04) :392-395

[9] Thiol-capping of CdTe nanocrystals:: An alternative to organometallic synthetic routes [J].

Gaponik, N ;

Talapin, DV ;

Rogach, AL ;

Hoppe, K ;

Shevchenko, EV ;

Kornowski, A ;

Eychmüller, A ;

Weller, H .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (29) :7177-7185

[10] ACCELERATED ENERGY-TRANSFER BETWEEN MOLECULES NEAR A SOLID PARTICLE [J].

GERSTEN, JI ;

NITZAN, A .

CHEMICAL PHYSICS LETTERS, 1984, 104 (01) :31-37

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