Polymer single crystal mediated gold nanoparticle assembly

PMSE 258

Bing Li, bl56@drexel.edu, Department of Materials Science and Engineering, Drexel University, 3141 Chestnut Street, Materials Engineering, philadelphia, PA 19104 and Christopher Y. Li, cyl24@drexel.edu, A. J. Drexel Nanotechnology Institute and Department of Materials Science and Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104.
Gold nanoparticles (AuNPs) possess remarkable electrical and optical properties coupled with good chemical stability. In order to efficiently transfer their outstanding properties from nano- to micro-scale, AuNPs need to be assembled into a variety of desired patterns. They have been successfully patterned on various substrates, such as metal, glass and polymer film. Here, we report a novel method using polymer single crystals as a substrate to assemble AuNPs. Polymer single crystal substrate has two pronounced advantages for AuNPs assembly. First, surface modification of the substrate (metal and glass) is not required. Second, the structure of this substrate can be modified by thermal treatment, which can produce more complex morphologies. Our results showed uniform distribution of AuNPs on the surface of polymer single crystals and a variety of patterns were obtained by tweaking the morphology of polymer.
 

Joint PMSE/POLY Poster Session
6:00 PM-8:00 PM, Tuesday, 12 September 2006 Moscone Center -- Hall D, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Sci-Mix

Division of Polymeric Materials: Science & Engineering

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006