Simultaneous templated assembly of different-sized nanocomponents by selective removal

This work presents an application where Templated Assembly by Selective Removal (TASR) was used to assemble spherical components of two different sizes onto a common substrate according to a specific layout. TASR is a potential rapid, cost effective, and large scale parallel nanomanufacturing method. It consists of patterning a template into shapes complementary to the components to be assembled, and then using adhesion and fluid flow to selectively keep the components in certain locations on the substrate and remove them from all other locations. Adhesion is induced by growing self assembled monolayers (SAMs) on the components and template which are then placed in an assembly mixture of water and acetone. Fluid flow is induced by subjecting the assembly mixture to an acoustic wave generated by an ultrasonic transducer. Assembly is achieved only in the sites which match the shapes of the components, where retention due to adhesion dominates over removal due to fluid flow. The thesis presents an experiment in which TASR is used to assemble 636 nm and 2 glm diameter silica spheres on a silicon oxide layer grown and patterned on a silicon substrate. The SAM precursor used is OTC.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Mechanical Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2006

Author dc:creator

• Eid, Feras

Advisor dc:contributor.advisor

• Carol Livermore.

• Mechanical Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/36241

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/36241