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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.
Nanowires based on silicon and manganese can be synthesised from Mn(CO) 5 SiCl 3 forming nanowires based on Mn 19 Si 33. [14] or grown on a silicon surface [15] [16] [17] MnSi 1.73 was investigated as thermoelectric material [18] and as an optoelectronic thin film. [19] Single-crystal MnSi 1.73 can form from a tin-lead melt [20]
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.
ZnO creates one of the most diverse range of nanostructures, and there is a great amount of research on different synthesis routes of various ZnO nanostructures. [1] The most common methods to synthesise ZnO structures is using chemical vapor deposition (CVD), which is best used to form nanowires and comb or tree-like structures.
Skeletal structural formula of Vitamin B 12.Many organic molecules are too complicated to be specified by a molecular formula.. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [1]
Amorphous boron nanowires (30–60 nm thick) [56] or fibers [57] can be produced by magnetron sputtering and laser-assisted chemical vapor deposition, respectively; and they also convert to β-rhombohedral boron nanowires upon annealing at 1000 °C. [56]