Nanotechnology and nucleotides

Article Abstract:

The synthesis of nanosized components and the methods of self-assembly structures pave the way to the fabrication of electronic components on molecular scale. Base-pairing between complementary chains of attached oligonucleotides is an effective way to self-assembly with inorganic particles. Similarly, preparing the nanosized components of the three-dimensional structure by colloidal chemistry can result in self-organization of nanoparticles. Attaching reactive groups to clusters also helps build structures of well-defined electronic structures.

Reports, Nucleotides

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Technology and the single electron

Article Abstract:

It may be possible to develop new electronic devices based on quantum-mechanical effects as a result of using colloidal chemistry to build up nanometre-sized structures atom by atom. These self-assembled nanostructures can be integrated with lithographically defined electrodes. Researchers have been able to fabricate a complete single-electron transistor with a colloidally grown nano-crystal as the confining region. The energy scale observed is reasonably large.

Electric properties, Transistors, Colloids

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Controlling the size, structure and orientation of semiconductor nanocrystals using metastable phase recrystallization

Article Abstract:

Materials engineering research has established a way of determining size, orientation and lattice structure in semiconductor nanocrystals embedded in a transparent matrix. The method embeds semiconductor ions into single-crystal alumina substrate before thermal annealing treatment. Substrate amorphization and recrystallization achieves structure checks. Other precipitates and epitaxial thin films can also be used in the technique.

Polycrystalline semiconductors

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