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The nonlinear optical properties of conjugated rhenium containing azo-based iminopyridine complexes were studied by means of Maker fringe technique using 30 ps laser pulses at 1064 nm. The influence of UV irradiation of guest-host films on nonlinear optical response was investigated. The values of second and third order susceptibility before and after UV irradiation were extracted and analyzed. The...
This work presents the nonlinear optical investigations of the neodymium (III) oxide thin films. Studied inorganic films were produced by physical vapor deposition (PVD) technique on glass substrate in high vacuum. The nonlinear optical properties were measured by using Nd:YAG laser at 1064 nm wavelength. Using the Maker fringe technique the third harmonic generation process was investigated. The...
This work contains description of the Physical Vapor Deposition technique and its application to selected organometallic thin films deposition process. We investigation results of the structural and optical properties of the thin films containing metal (M = Zn, Cu and Al) and bis- or tris(8-hydroxyquinoline). The films were successfully grown by physical vapor deposition (PVD) technique in high vacuum...
This work contains investigation results of the structural and optical properties for solutions as well as thin films containing single-walled carbon nanotubes. To investigate the optical properties 0.25, 0.5 and 1 mg of Single-Walled Carbon Nanotubes were dispersed in low concentration aqueous SDS solution. The same solutions were used to fabricate thin films. The films were successfully grown by...
This work contains investigation results of the structural and optical properties of the thin films containing metal (M = Zn, Cu and Al) and bis- or tris(8-hydroxyquinoline). The films were successfully grown by physical vapor deposition (PVD) technique in high vacuum on transparent (quartz) and semiconductor (n-type silicon) substrates kept at room temperature during the deposition process. Selected...
We present structural and optical properties of ZnO thin films deposited by using Pulsed Laser Deposition (PVD) technique on quartz substrates. The deposition process was carried out at various temperatures of the substrates from room temperature (RT) to 825K in order to investigate these properties of the films and their mutual influence. The structural and morphological properties of the films were...
We present optical properties of aluminum oxide (Al2O3) thin films. A high quality Al2O3 films fabricated by sol-gel (dip-coating) method were grown on quartz substrates at temperature equal to 25 °C (RT) for 30 min inside the chamber. Next, a part of prepared samples was annealed for 12 h at fixed temperature equal to 500 °C. The rest of samples were left in the normal condition. This procedure can...
This work contains investigation results of the structural and nonlinear optical properties of self-assembled organometallic thin films. The films were successfully grown by Physical Vapor Deposition technique in high vacuum on transparent (quartz, glass) and semiconductor (n-type silicon) substrates kept at room temperature during the deposition process. Selected films were undergone an annealing...
This work contains investigation results of the structural and optical properties of aluminum (III) tris(8-hydroxyquinoline) - Alq3 thin films. The films were successfully grown by physical vapor deposition (PVD) technique in high vacuum on transparent (quartz) and semiconductor (n-type silica) substrates kept at room temperature during the deposition process. Selected films were annealed after fabrication...
In this work we present the results of investigations relating to certain optical properties of thin films of Al2O3 (aluminium oxide) deposited on substrates made of quartz glass, using the sol-gel method. In our opinion, promising results came out photoluminescence and transmission of these layers, whereas the study conducted for the use of these materials in optoelectronic applications. Photoluminescence...
This work contains investigation results of the linear and nonlinear optical properties of metallophthalocyanines (Cu, Co, Zn, and Mg) and metallophthalocyanine chlorides (Al, Ga) thin films which were grown by physical vapor deposition (PVD) technique in high vacuum on transparent (quartz) and semiconductor (silica) substrates. Spectral properties of these films were examined using transmission,...
Here we present the results of the measurements of photoluminescence properties of thin films of MgO (magnesium oxide) on Si substrate (mono-crystalline (111) silicon). The samples were prepared by the sol-gel method that is very simple method for fabrication metal oxide layers on different kind of substrates. We carried out the photoluminescence experiments at a wide range of temperatures from 10...
Pulsed laser deposition (PLD) technique (called also laser ablation) has been employed to grow magnesium oxide thin films on quartz wafers. The optical properties of MgO thin films were studied using temperature dependent photoluminescence measurements. The structural properties of the MgO thin films were carried out using X-ray method. A strong dependence of the films structure, the crystalline quality...
In this paper photoluminescence (PL) properties of ZnO (zinc oxide) thin films on Si substrates are presented. Samples were prepared by sol-gel method. Photoluminescence experiments where carried out at different temperatures (10 K- 300 K). Registered spectra exhibit multiband structure witch depends on the temperature and preparation conditions.
Thin layers of copper phthalocyanine (CuPc) and tris(8-hydroxyquinoline) aluminium (Alq3) deposited on glass with aluminium contacts were investigated by admittance spectroscopy. Samples were prepared using the conventional thermal evaporation in high vacuum. The conductance and capacitance spectra in the frequency range from 1Hz to 250kHz of such structures have been registered. The electrical properties...
Thin films of hafnium oxide (HfO2) have been grown by PLD method on transparent quartz substrates. The HfO2 target used in our experiment was made by pressing HfO2 powder. A XeCl excimer laser (EXC 150, ESTLA, 308 nm in wavelength, 20 ns in pulse width) running at 10 Hz with an average pulse energy of about 200 mJ was used. The films were characterized using X-ray diffraction. The films were amorphous,...
The optical properties of ZnO thin films grown by sol-gel method on quartz wafers were studied using photoluminescence measurements for optical properties. The structural properties of the ZnO thin films were carried out using X-ray method. The effects of the thickness variation and annealing temperature on the crystallinity parameters were observed. A strong dependence of the films structure, the...
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