Plasmon-Mediated Photopolymerization Maps Plasmon Fields for Silver Nanoparticles

被引：39
|
作者：
Stamplecoskie, Kevin G. [1 ]
Pacioni, Natalia L. [1 ]
Larson, Dayle [1 ]
Scaiano, Juan C. [1 ]
机构：
[1] Univ Ottawa, Dept Chem, Ctr Catalysis Res & Innovat, Ottawa, ON K1N 6N5, Canada
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 24期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Free radical polymerization - Photopolymerization - Plasmonics - Crosslinking - Thin films - Metal nanoparticles - Free radicals;
D O I：
10.1021/ja201139z
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Visible light exposure of films containing silver nanoparticles (AgNPs) shows that the enhanced field around AgNPs in a thin film containing an azo free radical initiator (AIBN) and a triacrylate selectively cross-links the triacrylate within the plasmonic region around the particles. The crosslinked polymer is less soluble than its precursor and behaves as a solubility switch. After the film is developed with ethanol, polymer-encapsulated nanopartides are preserved on the surface. The 8-10 nm polymer structure that encapsulates the particles effectively maps and preserves the morphology of the plasmon field in AgNP-controlled nanostructures.
引用
收藏
页码：9160 / 9163
页数：4
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