I&EC 212 |
| Yu Feng Ma, Jian Ming Zhang, Guo Jin Zhang, and Huixin He. Department of Chemistry, Rutgers University, Newark, 73 Warren st, Newark, NJ 07102 |
| Like conventional silicon semiconductors, the electrical conductivity of conducting polymer materials can be reversibly varied over many orders of magnitude. Certain conducting polymeric materials, for example, polyaniline, also have the mechanical flexibility and environmental stability to be promising building blocks in nanoelectronic and nanosensor devices. Despite recent advances, a functional nanodevice using conducting polymer nanowires has not yet been developed. This is largely due to the lack of an efficient method for producing nanowires that are compatible with practical aspects of device fabrication, and a robust technique for integrating nanowires into functioning circuits. In this report, we will report our success to fabricate arrays polyaniline nanowires by using fully stretched DNA as growing templates. The orientated DNA strains immobilized on Si substrate predetermine the position and the orientation of the nanowires. The method is compatible with the conventional lithography techniques for functional circuit fabrication. The conductivity of the nanowires is very sensitive to the proton doping-undoping process, which holds great promise for chemical sensor applications.
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Nanotechnology and the Environment
8:30 AM-11:15 AM, Wednesday, March 31, 2004 Marriott -- Orange County 1, Oral
Division of Industrial and Engineering Chemistry |