Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 130, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3081185
Keywords
ab initio calculations; chemical sensors; electronic structure; gold; metal-insulator boundaries; molecular electronics; nanoelectronics; nanoparticles; nanosensors; organic compounds
Funding
- ASEE
- ONR Summer Faculty Research
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We theoretically analyzed transport properties of a molecular network constructed of gold nanoparticles linked with oligophenylenevinulene (OPV) molecules. We showed that the conductance of such system was strongly reduced when trinitrotoluene (TNT) became attached to the OPV linkers in the network. The reported results are based on the ab initio electronic structure calculations. These results corroborate and elucidate experiments which revealed significant drops in the conductance the network while the latter was exposed to TNT vapors. The results suggest that the detected sensitivity of transport characteristics of the considered nanoparticle network to TNT may be used to design a sensing nanodevice.
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