Patchy and Multiregion Janus Particles with Tunable Optical Properties

被引：164
作者：
McConnell, Maria D.
Kraeutler, Matthew J.
Yang, Shu [1 ]
Composto, Russell J.
机构：
[1] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA
来源：
NANO LETTERS | 2010年 / 10卷 / 02期
基金：
美国国家科学基金会;
关键词：
Nanoparticle; polymer; Janus; wetting; plasmon; SURFACES; NANOSHELLS; GROWTH; DIMERS; DESIGN; SIZE;
D O I：
10.1021/nl903636r
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Multiregion and patchy optically active Janus particles were synthesized via a hierarchical self-assembly process. Gold nanoparticles were assembled on the top surfaces of nano- and submicrometer silica particles, which were selectively protected on their bottom surfaces by covalent attachment to a copolymer film. The morphologies of the gold particle layer, and the resulting optical properties of the Janus particles, were tuned by changing the surface energy between the silica and gold particles, followed by annealing.
引用
收藏
页码：603 / 609
页数：7
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