Solution Processed, Versatile Multi layered Structures for the Generation of Metal-Enhanced Fluorescence

被引：10

作者：

Canesi, Eleonora V. ^{[1
]}

Capsoni, Martina ^{[2
]}

Karnam, Lohith ^{[1
,2
]}

Lucotti, Andrea ^{[2
]}

Bertarelli, Chiara ^{[1
,2
]}

Del Zoppo, Mirella ^{[2
]}

机构：

[1] Ist Italiano Tecnol, Ctr Nano Sci & Technol Polimi, I-20133 Milan, Italy

[2] Politecn Milan, Dipartimento Chim Mat & Ing Chim G Natta, I-20133 Milan, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 25期

关键词：

ENERGY-TRANSFER; DISTANCE; SILVER; GOLD; EMISSION; NANOPARTICLES; NANOCRYSTALS; PLASMONICS; RESONANCE; THIN;

D O I：

10.1021/jp4051353

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present an all-solution processed multilayered structure completely obtained via spin-coating, which can be used to study and optimize the phenomenon of metal-enhanced fluorescence. Indeed, the electromagnetic interactions occurring between fluorescent probes and localized surface plasmons typical of metal nanoparticles (NPs), which influence the fluorescence quantum yield, are strongly dependent on the nanoparticle/molecule distance. The platform proposed here offers unique advantages in terms of processability, allowing a fine-tuning of such a distance in a single deposition step. Fluorescence versus fluorophore/AuNP spacing curves are shown for two organic systems, namely, a perylene-based dye dispersed in a polymer matrix and a polyconjugated polymer (poly(3-hexylthiophene)), interacting with a nanostructured gold thin film. In both cases, optimal distances and enhancement factors have been measured.

引用

页码：13197 / 13201

页数：5

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