Electrical properties nanoelectronics, applications

Trace impurities in noble metal nanoclusters, used for the fabrication of highly oriented arrays on crystalline bacterial surface layers on a substrate for future nanoelectronic applications, can influence the material properties.25 Reliable and sensitive analytical methods are required for fast multi-element determination of trace contaminants in small amounts of high purity platinum or palladium nanoclusters, because the physical, electrical and chemical properties of nanoelectronic arrays (thin layered systems or bulk) can be influenced by impurities due to contamination during device production25 The results of impurities in platinum or palladium nanoclusters measured directly by LA-ICP-MS are compared in Figure 9.5. As a quantification procedure, the isotope dilution technique in solution based calibration was developed as discussed in Chapter 6. 

Electrochemical anodization of multi-layer AI/Ta/Al thin film compositions was developed to fabrieate regular nanostructures of tantalum oxide (TaiOs). Anodization kinetics, space characteristics of TaaOs nanopillars and electrical properties of Al/TaiOs/Al structures have been studied. Al/Ta/Al thin film compositions were shown to permit formation of regular nanostructured layers appropriate for photonic crystal and nanoelectronic applications. 

Inorganic nanotubes derived from WS2 may find application as tips in scanning probe microscopy. The feasibility of using such tips in inspecting microelectronic circuitry has now been demonstrated. The tips produced from WS2 nanotubes can outperform the microfabricated Si tip counterparts with respect to resilience and surface passivity [107]. Additional advantages of WS2 nanotubes include tunable electrical conductivities and strong light absorption in the visible spectrum. These properties may provide additional application opportunities in areas such as nanoelectronics and photocatalysis. 

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