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We present a system to test the bistability of individual molecules for application in a QCA cell. The system presented consists of two polysilicon gate electrodes which sit adjacent to two highly-doped windows of silicon to which molecules can be bound. To enable the detection of switching activity the two highly doped regions are electrically connected to the island of a single-electron transistor...
This paper presents an overview of the electronic implementation of quantum-dot cellular automata (QCA). QCA is a computing paradigm that encodes and processes information by the position of individual electrons. This opens the possibility of dense, ultra-low power devices. Resent results are presented from QCA cells implemented using metal-dots, as well as investigations toward molecular and silicon...
Quantum-dot cellular automata (QCA), a computation paradigm based on the Coulomb interactions between neighboring cells. The key idea is to represent binary information, not by the state of a current switch (transistor), but rather by the configuration of charge in a bistable cell. In its molecular realization, the QCA cell can be a single molecule. QCA is ideally suited for molecular implementation...
Complex coalt-carbonyl ligand-based clusters of clusters are used as molecular precursors for self-supported model catalysts. These precursors present two metal layers. The outer layer is associated with the complex Co-carbonyl ligands, and the core layer, which is either cobalt or zinc. These two precursors are identified as CoCo and ZnCo, respectively. In situ DRIFTS, TGA, TPD-MS, XPS, and catalytic...
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