Thin-film electronics, nanowire

NANOWIRE THIN-FILM ELECTRONICS—CONCEPT AND PERFORMANCE... 

This chapter deals with the selective preparation, TEM/EXAFS/XPS characterization and catalysis of mono- and bimetallic nanowires and nanoparticles highly ordered in silica FSM-16, organosilica HMM-1 and mesoporous silica thin films. The mechanism of nanowire formation is discussed with the specific surface-mediated reactions of metal precursors in the restraint of nanoscale void space of mesoporous silica templates. The unique catalytic performances of nanowires and particles occluded in mesoporous cavities are also reviewed in terms of their shape and size dependency in catalysis as well as their unique electronic and magnetic properties for the device application. 

D nanoribbons and nanowires of different metal-containing Pcs have also been prepared by organic vapor-phase deposition (OVPD), a technique used to fabricate organic millimeter-sized crystals, thin films, or nanostructures [211], Scanning electron microscopy (SEM), TEM, x-ray diffraction (XRD), and absorption measurement studies have revealed that the morphology of the nanostructures was strongly dependent on the chemical nature of the deposited macrocycle, the nature and the temperature of the substrate, and the source-to-substrate distance. 

Silicon oxide is a critical source material in the oxide-assisted growth as described above. It also plays important roles, as is well known, in many fields such as electronics, optical communications, and thin-film technology. Our recent finding of silicon oxide in the synthesis of silicon nanowires, as we reviewed in the previous part of this chapter, would extend further the important new application of silicon oxide. 

The main results of experimental studies of size effects in nanoferroics are presented in second chapter. In particular, we collect the extensive experimental data about size effects in nanoparticles and thin films of ferroelectrics, ferroelastics and magnetically ordered ferroics. The data have been collected for different nanoparticles geometries like spherical and cylindrical as well as for nanowires, nanotubes and nanopills. As for nanosizes the local properties play a decisive role, we pay attention to the results of electron spin resonant measurements, which are sensitive to the local properties. To obtain the reliable information about the physical properties of the entire nanostructure, the above local methods should be augmented by other experimental techniques like dielectric, magnetic and optical methods. We hope that our collection of available experimental data will give the idea about both local and average static and dynamic properties of nanostructures. 

Shi J, Xu F, Zhou P, Yang J, Yang Z, Chen D-S, Yin Y, Chen D, Ma Z-Q (2013b) Refined nano-textured surface coupled with SiNx layer on the improved photovoltaic properties of multicrystalline silicon solar cells. Solid-State Electron 85 23-27 Shiu S-C, Hung S-C, Syu H-J, Lin C-F (2011) Fabrication of silicon nanostructured thin film and its transfer from bulk wafers onto alien substrates. J Electrochem Soc 158 D95-D98 Smith ZR, Smith RL, Collins SD (2013) Mechanism of nanowire formation in metal assisted chemical etching. Electrochim Acta 92 139-147... 

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