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Fabrication and Placement of a Ring Structure of Nanoparticles by a Laser-Induced Micronanobubble on a Gold Surface
- Source :
- Langmuir. 27:8605-8610
- Publication Year :
- 2011
- Publisher :
- American Chemical Society (ACS), 2011.
-
Abstract
- We have developed a new fabrication method for a ring structure of assembled nanoparticles 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.
- Subjects :
- Materials science
Fabrication
Marangoni effect
Surface Properties
Capillary action
Lasers
Physics::Optics
Nanoparticle
Nanotechnology
Surfaces and Interfaces
Condensed Matter Physics
Ring (chemistry)
Laser
law.invention
Template
law
Electrochemistry
Microtechnology
Nanoparticles
General Materials Science
Gold
Photomask
Spectroscopy
Subjects
Details
- ISSN :
- 15205827 and 07437463
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Langmuir
- Accession number :
- edsair.doi.dedup.....707d869a39972579dc9c71e8a6b40d48