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Functional Nanoscale Molecules and Chemically Well-Defined Nanoscale Fabrication Christopher Gorman North Carolina State University AFOSR - MURI 8/16/99 . Control of Electron Transfer The Heart of Nanoscale Electronics. 1. Addressing 2. Anchoring/ordering
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Functional Nanoscale Molecules and Chemically Well-Defined Nanoscale FabricationChristopher GormanNorth Carolina State UniversityAFOSR - MURI8/16/99
Control of Electron TransferThe Heart of Nanoscale Electronics • 1. Addressing • 2. Anchoring/ordering • 3. Use of state rather than just position • 4. Encapsulated – No scrambling of information
Dendrimers as Multifunctional Nanoscale Objects Electronic“Insulator” (Prevents Crosstalk) Chemically Tailorable Periphery (Clip onto surfaces) Electron Holding Site (Information Storage Unit)
Dendrimer Electron Transfer • Different Molecular Structures give rise to different electron transfer rate attenuation • Future Objective: Correlate with single molecule I-V measurements kET RC
Chemical Writing C10 on C12 SAM C12 on C10 SAM • STM under a non-polar thiol solution replace thiol A by thiol B • Predicted Height Difference of 1.1 Å at 1 pA observed (Weiss) • These thiols can form the foundation for nanoscale assemblies