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A nanowire is a nanostructure in the form of a wire with the diameter of the order of a nanometre (10 −9 m). More generally, nanowires can be defined as structures that have a thickness or diameter constrained to tens of nanometers or less and an unconstrained length.
Most types of molecular wires are derived from organic molecules. One naturally occurring molecular wire is DNA.Prominent inorganic examples include polymeric materials such as Li 2 Mo 6 Se 6 [1] and Mo 6 S 9−x I x, [2] [3] [4] [Pd 4 (CO) 4 (OAc) 4 Pd(acac) 2], [5] and single-molecule extended metal atom chains (EMACs) which comprise strings of transition metal atoms directly bonded to each ...
Potassium niobate (KNbO 3) is an inorganic compound with the formula KNbO 3. A colorless solid, it is classified as a perovskite ferroelectric material. [2] It exhibits nonlinear optical properties, and is a component of some lasers. [3] Nanowires of potassium niobate have been used to produce tunable coherent light.
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One-dimensional crystalline nanowires are then grown by a liquid metal-alloy droplet-catalyzed chemical or physical vapor deposition process, which takes place in a vacuum deposition system. Au-Si droplets on the surface of the substrate act to lower the activation energy of normal vapor-solid growth.
Monocrystalline nanowires can be synthesized from indium oxide by laser ablation, allowing precise diameter control down to 10 nm. Field effect transistors were fabricated from those. [11] Indium oxide nanowires can serve as sensitive and specific redox protein sensors. [12] The sol–gel method is another way to prepare nanowires. [citation ...
The synthesis was achieved by initially creating nanowires from pure crystals of zinc oxide onto a sapphire wafer through a process Yang and his colleagues previously created called epitaxial casting. These zinc oxide nanowires were then used as templates over which crystals of gallium nitride were grown by chemical vapour deposition. [3]