Abstract
Future sensing elements should be more specific, more sensitive, more reversible, and faster than today’s elements. These future sensing devices will either be integrated with suitable signal detection circuitry, typically based on Si microelectronics, or with optical signal detection, and finally interfaced to relevant state-of-the-art signal recognition hard- and software. Some of the more critical uses of sensors are in the dynamic surveillance of system parameters in complex machinery or in biological systems, such as our own bodies. Most of these demands are likely to be met by the continued rapid development of functional nanomaterials including bio-nanomaterials and biocompatible nanomaterials. A strong and increasing trend, also clear at this NATO-ASI, is the focus on using Au-dots deposited on various substrates for optical field enhancements and for other synergistic effects on electronic properties such as sheet conductivity, when deposited on polymer films or on metal oxide surfaces. Gas sensing with metal oxide surfaces is another very active area of development, where the high surface to volume ratio of thin films or nano-crystalline objects are in focus. In this report we demonstrate examples of the processing of silicon surfaces, aluminum surfaces and wooden saw dust powders to create nanostructured materials with interesting functional properties in novel types of self-limiting and self-organizing growths of one-, two- and three dimensional nano-template (i.e. nano-building block) systems, with a range of functionalities, as-formed, or after further integration. However, the focus in this report is on the growth processes and further treatments, as these are relatively new, and thus not widely known, but highly relevant for the functional properties of the resulting nanostructures, and for integration of the structures with silicon or in more complex systems.
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Acknowledgements
We thank the organizers of the 2010 NATO-ASI at Sozopol for the arrangement and their enthusiasm to create such a lively atmosphere for the exchange of ideas and experiences. Many former students and colleagues have participated in the projects reported here: Kjeld Pedersen (Aalborg University), Zheshen S. Li (ASTRID, Aarhus University), Ali Bahari (Iran), Jeanette Hvam, Erik Folven, Uffe Møller, Søren Foeghmoes, and the technicians Danny Kyrping and Torben Sørensen. The funding from the Danish Research Councils for the FINST Consortium and the granting of a PhD stipend from the Danish Program Committee for Sustainable Energy and Environment are gratefully acknowledged.
This work was done partly in collaboration with the FINST consortium (Denmark) and is also supported by the Danish Research Council Development Agency for Sustainable Energy and Environment.
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Morgen, P., Drews, J., Dhiman, R., Nielsen, P. (2011). Nanostructured Materials in Different Dimensions for Sensing Applications. In: Reithmaier, J., Paunovic, P., Kulisch, W., Popov, C., Petkov, P. (eds) Nanotechnological Basis for Advanced Sensors. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0903-4_29
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DOI: https://doi.org/10.1007/978-94-007-0903-4_29
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