Journal
Scientific and Technical Journal of Information Technologies, Mechanics and Optics
UDK535.343.2, 539.213.27
Issue:1 (107)
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FORMATION OF NANOSTRUCTURED CuO FILM ON FLUOROPHOSPHATE GLASS SURFACE
Annotation
The paper deals with СuОfilms on the fluorophosphate glass surface composed of 25Na2O-50P2O5-10Ga2O3-10AlF3-5ZnO doped with 2, 4, 5 mol. %. CuCl over 100%. The films are obtained by the out-diffusion mechanism within the heat retreatment of the samples. We have studied the influence of copper concentration, redox conditions of the synthesis and the temperature - time parameters of heat treatment. X-ray phase analysis has shown that in the heat treatment temperature range of T = 380 – 420°C in the air the CuO film is formed by nanocrystals with an average size of 16 – 18 nm, and the increasing of heat treatment temperature and time leads only to the film thickness growth. It is shown that the film surface consists of crystallites with irregular shape; the lateral size is in the range of 100–350 nm, and the visible part level is equal to 15–25 nm. The average surface roughness measured on a scan area of 1×1 µm is equal to 3.1 nm. It is found out that Cu2O or metallic copper nanocrystals are formed in reducing conditionsdepending on the duration of the heat treatment process.
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