IEC 187 |
| James E. Hutchison, Department of Chemistry and Materials Science Institute, Department of Chemistry and Materials Science Institute, University of Oregon, Eugene, OR 97403 |
| Traditional manufacturing methods for micro- and nano-electronic devices use many hazardous materials. As device sizes shrink toward the nanoscale, traditional device architectures and fabrication strategies begin to fail. Thus, alternative methods of fabrication are needed that simultaneously address the technical challenges facing the industry and are environmentally benign. One alternative involves chemical assembly of nanoscale devices from molecular precursors (e.g., novel electronic properties of assemblies of metal nanoparticles are being explored for use in nanoelectronic applications). Here we describe a green chemistry approach to nanoscale devices and circuits, involving the interconnection of linear nanoparticle assemblies. Functionalized metal nanoparticles are assembled onto biomolecular scaffolds (DNA, polypeptides) to form closely and evenly spaced metal particle chains. We present synthetic methods together with microscopic evidence for linear and branched particle arrays. Electrical measurements suggest the electronic properties of these arrays are remarkably tolerant of defects and disorder, an important prerequisite for electronic applications. |
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Nanotechnology and the Environment
8:30 AM-11:55 AM, Wednesday, March 26, 2003 Convention Center -- Room 392, Oral
Division of Industrial and Engineering Chemistry |