Fabrication and Placement of a Ring Structure of Nanoparticles by a Laser-Induced Micronanobubble on a Gold Surface

被引：96

作者：

Fujii, Sho ^{[1
]}

Kanaizuka, Katsuhiko ^{[1
]}

Toyabe, Shoichi ^{[2
]}

Kobayashi, Katsuaki ^{[1
]}

Muneyuki, Eiro ^{[2
]}

Haga, Masa-aki ^{[1
]}

机构：

[1] Chuo Univ, Dept Appl Chem, Fac Sci & Engn, Bunkyo Ku, Tokyo 1128551, Japan

[2] Chuo Univ, Dept Phys, Fac Sci & Engn, Bunkyo Ku, Tokyo 1128551, Japan

来源：

LANGMUIR | 2011年 / 27卷 / 14期

关键词：

HEXAGONS; ARRAYS; FLOW;

D O I：

10.1021/la201616s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have developed a new fabrication method for a ring structure of assembled nanopartides on a gold surface by the use of continuous Nd:YAG laser light. A micronanobubble on a gold surface, created by laser local heating, acts as a template for the formation of the ring structure. Both Marangoni convection flow and capillary flow around the micronanobubble are responsible for the driving force to assemble nanoparticles such as CdSe Q-dots into the ring structure from the solution. Because a single micronanobubble was generated by the Nd:YAG laser focusing point, the precise positioning of the ring structure was feasible directly on the gold surface, which makes it possible to fabricate various patterns of rings such as arrays and letters and even a double-ring structure without any photomasks or any templates.

引用

页码：8605 / 8610

页数：6

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