Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Potential for nanotechnology approaches in the production of crystalline and thin film silicon solar cells
Poruba, Aleš ; Vaněček, Milan ; Bařinka, R. ; Čech, P. ; Wostrý, P.
Increasing the solar cell conversion efficiency together with reducing their production cost are the trends of the last years which are necessary for the near future grid parity of "the energy from the sun". This paper deals mainly with the first part of trends, i.e., with enhanced cell efficiency while keeping the production cost nearly the same or even lower taking into account the potential for the implementation of nanotechnologies in both monocrystalline and thin film silicon devices.
Foreign substrates pre-treatment using polymer composites in plasma-enhanced CVD growth of diamond fibers and layers
Potocký, Štěpán ; Babchenko, Oleg ; Ižák, Tibor ; Varga, Marián ; Kromka, Alexander ; Rezek, Bohuslav ; Tesárek, P.
Nanocrystalline diamond wires and layers were grown by microwave plasma CVD technique on Si substrates. The substrates were pretreated by non-woven composite nanofiber textile composed by poly(vinyl alcohol) matrix and ultra-dispersed diamond (UDD) nanoparticles prepared by needleless electrospinning method. High concentration of UDD in the PVA fibers lead to formation of diamond wires due to a combined effect of UDD particles used as seeding and high pressure difference across the fibers interface. A preferable growth of diamond layers was observed on areas with a low porosity volume of nanofiber textile. The influence of spundond structure on the growth of diamond decreased with lowering of UDD concentra-tion in the primary polymer matrix.

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