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Thin Photoresponding Elements with Frequency and Amplitude Modulations
Klusoň, Petr ; Morozová, Magdalena ; Dzik, P. ; Veselý, M.
Nanoscale templated metal oxide thin films undoubtedly appertain to the most extensively studied materials due to their optical and electrochemical properties. Their photo-induced properties arise from the semiconductor nature, especially from the ability of the light quantum absorption followed by the charge carrier generation. In order to produce metal oxide thin layer layers, the liquid sol containing also the templating bodies, and confining nanoparticles, must be coated onto a substrate. Various coating techniques have been used for this purpose, such as dip-, spin- or spraycoating. Recently a new promising deposition technique has appeared. The novel approach is usually termed piezoelectric jet material deposition or shortly material printing. In this case the ink is the specially formulated liquid purposed for transporting functional components onto the substrate surface. This technique brings the possibility of direct patterning, i.e. the fabrication of 2D patterns on the substrate without the need of any mechanical or optical masking. Material printing has been already employed for the deposition of variety functional materials.
Plný tet: SKMBT_C22013102415160 - PDF Plný text: content.csg - PDF
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Thin Functional Films of TiO2 Nanoparticles
Morozová, Magdalena ; Klusoň, Petr ; Hejda, S. ; Kment, Štěpán ; Šolcová, Olga
Magnetron Sputtering and the Modulated Hollow Cathode Plasma Jet Sputtering. As chemical method the sol-gel process carried out in the templating environment as dip-coating and piezo-jet printing was employed. The produced films differed in many structural characteristics and also in their photoelectrochemical behaviour, as the primary sought function. The produced layers were described by means of atomic force microscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy, Raman spectroscopy, ellipsometry and profilometry. Then the films were used as electrodes in photoelectrochemical experiments.
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