Zobrazeno 1 - 10
of 22
pro vyhledávání: '"E. G. Gule"'
ZnO nanoparticles embedded in polyvinylpyrrolidone matrix were fabricated in situ by colloidal method with environmentally friendly reaction conditions. The colloid was used to form solid nanocomposite polyvinylpyrrolidone/ZnO, and optical properties
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25a62b59fb67d0259a15dfe57cccc99c
http://essuir.sumdu.edu.ua/handle/123456789/68422
http://essuir.sumdu.edu.ua/handle/123456789/68422
Publikováno v:
Materials Chemistry and Physics. 148:77-81
Electrical d.c. conductivity of nano-CdS/polyvinyl alcohol composites with different nanoparticle concentrations and its temperature dependence were studied. The composites demonstrate increasing resistivity with CdS nanoparticles content. The curren
Autor:
A. I. Savchuk, K.S. Volkov, G. Yu. Rudko, Igor Davydenko, O. I. Olar, E. G. Gule, V. I. Fediv
Publikováno v:
Semiconductor Physics Quantum Electronics and Optoelectronics. 17:46-51
Publikováno v:
Nanoscale Research Letters
The conditions for growing CdS nanoparticles suitable for the visualization of biological tissues were theoretically studied and experimentally checked. The optimal ranges for pH values and precursors' concentrations were determined. The applicabilit
Autor:
L. I. Veligura, Viktor Strelchuk, N. V. Sopinskii, N. A. Vlasenko, P. F. Oleksenko, E. G. Gule, M. A. Mukhlyo, Andrii Nikolenko
Publikováno v:
Semiconductors. 46:323-329
The photoluminescence of SiO x films deposited on c-Si wafers by the thermal evaporation of SiO in a vacuum and, for the first time, doped with ErF3 by coevaporation is studied. It is shown that, like undoped SiO x films, the unannealed SiO x :ErF3 f
Autor:
P. F. Oleksenko, E. G. Manoilov, E. G. Gule, M. A. Mukhlyo, L. I. Veligura, N. V. Sopinskii, N. A. Vlasenko
Publikováno v:
Semiconductors. 45:1414-1419
A band with a peak at 890 nm is detected in the photoluminescence spectra of SiO x (x ≈ 1.3) films deposited by thermal evaporation of SiO and annealed in air at 650–1150°C. The 890-nm band appears after low-temperature (∼650°C) annealing and
Autor:
Z. L. Denisova, O. S. Litvin, N. V. Sopinskii, N. A. Vlasenko, M. A. Mukhlyo, L. I. Veligura, E. G. Gule, P. F. Oleksenko
Publikováno v:
Semiconductors. 45:587-592
The spectrum of the photoconductivity induced by the polarization field of charges at surface states and traps in the film bulk has been analyzed to determine the energy band diagram at the c-Si-SiOx interface and the changes in the electronic states
Publikováno v:
physica status solidi (b). 245:2756-2760
The effect of enhanced hydrostatic pressure (HP, (10–12) × 108 Pa) on thermally stimulated phase decomposition of silicon suboxide layers processed at 450–1000 °C was investigated by infrared spectroscopy and photoluminescence measurements. HP
Autor:
I. Z. Indutniĭ, P. E. Shepelyavyĭ, M. V. Muravskaya, V. V. Voitovich, I. Lisovskyy, E. G. Gule
Publikováno v:
Semiconductors. 42:576-579
The spectra of infrared transmittance and photoluminescence of thin-film nc-Si/SiO2 structures containing nanocrystalline silicon (nc-Si) and subjected to ionizing radiation (60Co) in the dose range D= 104−107 rad are studied. It is shown for the f
Publikováno v:
Semiconductors. 37:681-685
Dependences of spectra, intensity, and relaxation time of superradiance in GaAs/InxGa1−xAs/GaAs quantum heterostructures on the excitation power density in the range of 1×10−3–1×106 W/cm2 are investigated. It is shown for the first time that