By a News Reporter-Staff News Editor at Journal of Technology -- Fresh data on Thin Solid Films are presented in a new report. According to news reporting originating from Linz, Austria, by VerticalNews correspondents, research stated, "Thermoelectrics are presently used in a number of applications for both turning heat into electricity and also for using electricity to produce cooling. Mature Si/SiGe and Ge/SiGe heteroepitaxial growth technology would allow highly efficient thermoelectric materials to be engineered, which would be compatible and integrable with complementary metal oxide silicon micropower circuits used in autonomous systems."
Our news editors obtained a quote from the research from the University of Linz, "A high thermoelectric figure of merit requires that electrical conductivity be maintained while thermal conductivity is reduced; thermoelectric figures of merit can be improved with respect to bulk thermoelectric materials by fabricating low-dimensional structures which enhance the density of states near the Fermi level and through phonon scattering at heterointerfaces. We have grown and characterized Ge-rich Ge/SiGe/Si superlattices for nanofabricated thermoelectric generators. Low-energy plasma-enhanced chemical vapor deposition has been used to obtain nanoscale-heterostructured material which is several microns thick. Crystal quality and strain control have been investigated by means of high resolution X-ray diffraction. High-resolution transmission electron microscopy images confirm the material and interface quality."
According to the news editors, the research concluded: "Electrical conductivity has been characterized by the mobility spectrum technique."
For more information on this research see: Ge/SiGe superlattices for nanostructured thermoelectric modules. Thin Solid Films, 2013;543():153-156. Thin Solid Films can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Thin Solid Films - www.elsevier.com/wps/product/cws_home/504106)
The news editors report that additional information may be obtained by contacting D. Chrastina, Univ Linz, Inst Halbleiter & Festkorperphys, A-4040 Linz, Austria. Additional authors for this research include S. Cecchi, J.P. Hague, J. Frigerio, A. Samarelli, L. Ferre-Llin, D.J. Paul, E. Muller, T. Etzelstorfer, J. Stangl and G. Isella.
Keywords for this news article include: Linz, Europe, Austria, Thin Solid Films
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