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Conference: Bucharest University Faculty of Physics 2017 Meeting

Section: Solid State Physics and Materials Science

Title:

Smartly Engineered Nanostructured Electrodes From nanofabrication towards next generation devices

Authors:

Vlad-Andrei ANTOHE (1,2)

Affiliation:

1) University of Bucharest, Faculty of Physics, Research and Development Center for Materials and Electronic & Optoelectronic Devices (MDEO), Atomiștilor Street 405, RO-077125 Bucharest-Măgurele, Romania

2) Université Catholique de Louvain (UCL), Institute of Condensed Matter and Nanosciences (ICMN), Bio- and Soft Matter Research Division (BSMA), Place Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium

E-mail

vlad.antohe@fizica.unibuc.ro

Keywords:

Nanowires & Nanotubes; Interconnected networks of one-dimensional nanostructures; Nanoporous templates; Electrodeposition; Capacitive pH sensors; Chemiresistive gaseous ammonia sensors; Magnetic devices; Micro-batteries.

Abstract:

The dense arrays of nanowires or nanotubes are expected to play an important role in the development of the next generation of nanostructured devices, as their high surface-to-volume ratio could be beneficial for a wide range of applications. However, the use of such one-dimensional nanostructures as functional building blocks within electronic and optoelectronic devices requires specially tailored nanoarchitectures with well-defined patterns, positions and pitches.Consequently, here several cost-effective pathways of preparing large dense arrays of nanowires or nanotubes, with easily tunable geometrical dimensions and spatial arrangement are discussed. The fabrication methodologies rely on template-assisted electrochemical synthesis, eventually coupled with advanced patterning techniques, such as optical, electron-beam or nano-imprint lithography. These approaches are extremely versatile, allowing the design of a wide range of localized elongated nanostructures, including metallic, polymeric and hybrid metal/oxide core/shell nanowires or nanotubes, with great applicability in various fields, such as sensing and biosensing, energy storage and harvesting, spintronics and magnetic recording, only to mention some [1-7].Few selected applications are subsequently discussed in the context of an increasing demand for electronic and optoelectronic devices with reduced dimensions, improved performances and ultimately novel functionalities.

References:

[1] V. A. Antohe, E. Nysten, J. M. Martínez-Huerta, P. M. Pereira de Sá, et al., RSC Advances 7:18609 (2017);

[2] R. Cai, V. A. Antohe, Z. Hu, B. Nysten, L. Piraux, et al., Advanced Materials 29(6):1604604 (2017);

[3] A. Vlad, V. A. Antohe, J. M. Martinez-Huerta, E. Ferain, et al., J. Mater. Chem. A 4:1603 (2016);

[4] L. Piraux, V. A. Antohe, E. Ferain, D. Lahem, RSC Advances 6:21808 (2016);

[5] V. A. Antohe, A. Radu, M. Mátéfi-Tempfli, A. Attout, S. Yunus, et al., Appl. Phys. Lett. 94:073118 (2009);

[6] A. Vlad, M. Mátéfi-Tempfli, V. A. Antohe, S. Faniel, N. Reckinger, et al., Small 4(5):557 (2008);

[7] L. Piraux, K. Renards, R. Guillemet, S. Mátéfi-Tempfli, V. A. Antohe, et al., Nano Letters 7(9):2563 (2007).

Acknowledgement:

University of Bucharest, Faculty of Physics; Université Catholique de Louvain (UCL/ICMN/BSMA); Government of the Walloon Region (NANOTIC-FEELING Research Program, ARC 13/18-052, Supracryst); Fonds de la Recherche Scientifique (FNRS), Belgium; European Sixth Framework Programme (FP6, NMP-CT-2004-505955).