Auflistung Raksti konferenču krājumā un tēzes (CFI) / Conference Papers and Abstracts nach Erscheinungsdatum
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Determination of Kerr and two-photon absorption coefficients of indandione derivatives
(SPIE, 2017)We studied nonlinear optical properties of two different aminobenziliden-1,3-indandione derivatives - DDMABI and DMABI-OH by employing the Z-scan method. Through this we described how different donor and acceptor groups ... -
Synthesis of Eu2+ and Dy3+ doped strontium aluminates and their properties
(Trans Tech Publications Ltd., 2017)Strontium aluminate phosphors were synthesized by the solution combustion method using citric acid, urea or glycine as reducing agent and europium and dysprosium as dopants. The content of both dopants was in the range of ... -
Characterization of crystalline structure and morphology of Ga2O3 thin film grown by MOCVD technique
(Trans Tech Publications Ltd., 2017)Growth of gallium oxide thin film was realized with MOCVD on (0001) sapphire substrate. Structural and compositional properties of thin film were studied employing trimethylgallium and water as precursors, carrier gases ... -
Investigation of photoluminescence and amplified spontaneous emission properties of cyanoacetic acid derivative (KTB) in PVK amorphous thin films
(SPIE, 2018)In this work photoluminescence and amplified spontaneous emission properties of new original 2-cyanoacetic acid derivative in different concentration mixed in polyvinyl carbazole (PVK) matrix were investigated. Ethyl ... -
Determination of Kerr and two-photon absorption coefficients of ABI thin films
(SPIE, 2018)In this paper we report the results of studied nonlinear optical properties of DMABI-Ph6 in form of solutions with chloroform as solvent and guest-host thin films with poly(methyl methacrylate) as host material. We implemented ... -
Luminescence of F2 and F3 + centres in LiF crystals irradiated with 12 MeV 12C ions
(Institute of Physics Publishing, 2018)Dependences of the nanohardness and photoluminescence of F 2 and F 3 + centers on the depth in LiF crystals irradiated with 12 MeV 12 C ions to fluences 10 10 -10 15 ions/cm 2 were studied using laser scanning confocal ... -
Photovoltaic effect in bulk heterojunction system with glass forming indandione derivative DMABI-6Ph
(Elsevier Ltd, 2018)The aim of the work is to evaluate possible use of 2-[[4-(bis(2-trityloxyethyl)amino)phenyl]methylene]indane-1,3-dione (DMABI-6Ph) as light absorbing material for solar cells. DMABI-6Ph is a perspective material due to its ... -
Thermally induced fading of Mn-doped YAP nanoceramic
(Institute of Physics Publishing, 2018) -
Transition levels of acceptor impurities in ZnO crystals by DFT-LCAO calculations
(Institute of Physics Publishing, 2018)Large scale ab-initio calculations are carried out to study the charge state transition levels of nitrogen and phosphorus impurity defects in zinc oxide crystals using the DFT-LCAO approximation as implemented into the ... -
Theoretical investigations of nitrogen doping on Co 3 O 4 for water dissociation catalytically activity
(Institute of Physics Publishing, 2018)We report the results of theoretical investigations of nitrogen doping on Co 3 O 4 (100) bulk by means of the plane-wave periodic density functional theory (DFT) calculations combined with the Hubbard-U approach and ... -
Energy level determination of purine containing blue light emitting organic compounds
(SPIE - International Society for Optics and Photonics, 2018)Organic light emitting diodes (OLED) have found their applications in the mobile and TV screens. Till now the commercially available diodes are made by expensive thermal evaporation in a vacuum. The costs of OLED fabrication ... -
Luminescence characteristics of magnesium aluminate spinel crystals of different stoichiometry
(Institute of Physics Publishing, 2019)Magnesium aluminate spinel single crystals with different stoichiometry, MgAl2O4 (1:1 spinel) and MgO 2.5Al2O3 (1:2.5) were investigated using different optical methods (cathode-, photo- and thermally stimulated luminescence ... -
Mass recovery of carbonated fabrics of glass fibres after isothermal heating
(Institute of Physics Publishing, 2019)Leaching of Na+ ions in sodium oxide (Na2O) and silica (SiO2) containing glass is well investigated mainly due to its weak weathering. The object of this study was naturally (at room conditions) leached, steady state product ... -
Electronic processes in doped ZnO nanopowders
(Institute of Physics Publishing, 2019)ZnO nanocrystals, undoped and doped with Iridium or Indium were prepared by solar irradiation in Heliotron reactor in PROMES CNRS facilities, France. The comparative analysis of the excitonic spectra of ZnO single crystal ... -
Electro-catalytic and photo-catalytic reformation of CO2–reactions and efficiencies processes (Review)
(Institute of Physics Publishing, 2019)Energy harvesting with lowest environmental impact is one of key elements for cleaner future. Photocatalytic as well as electrocatalytic CO2 reformation processes are considered as prominent methods. Thus, extensive research ... -
First principles evaluation on photocatalytic suitability of 2H structured and [0001] oriented WS2 nanosheets and nanotubes
(Institute of Physics Publishing, 2019)Pristine WS2 multilayer nanosheets (NSs), which thickness h NS varies from 1 to 12 monolayers (MLs), as well as single- and multi-walled nanotubes (SW and MW NTs) of different chirality, which diameter d NT exceeds 1.9 nm, ... -
Different approaches in sulfonated poly (ether ether ketone) conductivity measurements
(Institute of Physics Publishing, 2019)Ion conductivity of sulfonated poly (ether ether ketone) (SPEEK) membranes with various degree of sulfonation (DS) was investigated using impedance analysis with different measuring cell configuration and ion conductivity ... -
PVA Hydrogel Electrolyte and Porous Polyisoprene Carbon Nanostructure Composite Based Pressure Sensitive Supercapacitor
(Institute of Physics Publishing, 2019)Narrow operational voltage window can be considered as one of the greatest limitations for aqueous polymer electrolytes. Using freeze-thaw hydrogel preparation method we have synthesized wider potential window electrolytic ... -
Structural investigation of crystallized Ge-Ga-Se chalcogenide glasses
(Institute of Physics Publishing, 2019)Crystallization transformation in the 80GeSe2-20Ga2Se3 chalcogenide glasses caused by annealing at 380 °C during different duration (25, 50, 80 and 100 hours) are studied using X-ray diffraction and atomic force microscopy ... -
Optical properties of zinc-iridium oxide thin films
(Institute of Physics Publishing, 2019)We present the results of an investigation of ultraviolet, visible, near-infrared (UV-Vis-NIR) and X-ray absorption spectroscopy absorption spectra for zinc-iridium oxide (Zn-Ir- O) thin films with various iridium ...