Nano Science and Technology Institute
Nanotech 2007 Vol. 4
Nanotech 2007 Vol. 4
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 4
Chapter 3: Nanofabrication

Fabrication of Nanoparticulate Inks for Applications in Printable Electronics

Authors:A. Reindl, S. Aldabergenova, E. Altin, G. Frank and W. Peukert
Affilation:Friedrich-Alexander University, DE
Pages:506 - 509
Keywords:semiconducting nanoparticle, stirred media mill, Raman, XRD, TEM
Abstract:The main impetus of this work is the fabrication of stable suspensions (in regard to aggregation) suitable for a printing process. Therefore semiconducting nanoparticles were dispersed systematically in organic solvents using a variety of methods (e.g. ultrasound, ultraturrax, and stirred media mill). Via dispersing with a stirred media mill intrinsically stable suspensions of Si nanoparticles were produced after 6 hours of dispersing. The evolution of morphology, particle size and structure was investigated by dynamic light scattering, X-ray diffraction, Raman spectroscopy and high resolution transmission electron microscopy as a function of dispersing time. The microstructural development with varying crystallite size and crystalline volume fraction was analyzed by Raman spectroscopy and directly confirmed by transmission electron microscopy measurements. Careful analysis of the development of particle structure and oxide formation as a function of dispersing time enables the optimization of the fabrication of conductive nanoparticulate inks in regard to the desired properties in printable electronics.
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