Zobrazeno 1 - 10
of 18
pro vyhledávání: '"I. V. Postnova"'
Autor:
Yuriy N. Kulchin, K. A. Sergeeva, S. S. Voznesenskiy, Alexander A. Sergeev, I. V. Postnova, A. A. Leonov
Publikováno v:
Defect and Diffusion Forum. 386:229-235
A simple aqueous based synthesis technique at room temperature was performed for preparation manganese-doped zinc sulfide quantum dots. Under 4 eV excitation quantum dots show photoluminescence bands at 2.11 and 3.1 eV corresponded to Mn2+and intrins
Publikováno v:
Semiconductors. 52:2143-2145
A simple aqueous based synthesis technique at room temperature was performed for preparation of pure and manganese (Mn2+) doped ZnS quantum dots in the presence of glutathione as the capping agent. Under UV-excitation quantum dots show photoluminesce
Publikováno v:
Semiconductors. 52:1846-1848
Manganese-doped zinc sulfide quantum dots were synthesized by chemical precipitation in an aqueous solution in the presence of glutathione as the capping agent. Obtained samples show dual emission band with maximums at 2.11 eV (Mn2+) and about 3.1 eV
Publikováno v:
Physics Procedia. 86:15-18
The effect of electrostatic field on optical properties of silicate nanocomposite with cadmium sulfide quantum dots was investigated. It was found that the electrostatic field causes quantum dot orientation along the field force lines leading to chan
Autor:
Sergey Golik, A. Yu. Mayor, D. Yu. Proschenko, I. V. Postnova, Yu.A. Shchipunov, A.A. Podlesnyh
Publikováno v:
Physics Procedia. 86:19-23
Experimentally studied linear and nonlinear characteristics of colloid on the basis of a new class of carbon nanoparticles (CN) synthesized by hydrothermal synthesis. The spectral characteristics of supercontinuum of the colloids with CN in the range
Publikováno v:
Physics Procedia. 86:11-14
Temperature influence on optical and structural properties of nanocomposite structures based on cadmium sulfide quantum dots in silicate matrix was investigated. The mechanism of occurrence of reversible laser-induced absorption is proposed. It was f
Publikováno v:
RSC Advances. 6:33501-33509
Biopolymers are biocompatible and nontoxic but their other properties rank much below synthetic polymers. Their mechanical performance is improved significantly in bionanocomposites with a layered brick-and-mortar structure biomimicking the nacre of
Publikováno v:
Solid State Phenomena. 245:19-22
We study stable stable transparent monolithic nanocomposites based on the silica matrix doped with CdS nanoparticles (NPs) of different nature. The first kind of nanocomposite was obtained by nucleation and growth of nanoparticles in glass matrix dur
Autor:
A. A. Rempel, Yury Shchipunov, A. N. Galkina, I. V. Postnova, S. S. Voznesenskiy, Alexander A. Sergeev, Ivan D. Popov, Yu.V. Kuznetsova
Publikováno v:
Solid State Phenomena. 245:67-71
Here we report about study the novel class of nanocomposite for optical control devices. It was observed that nanocomposite based on cadmium sulfide quantum dots in silica matrix can change its optical properties under irradiation of UV-light. These
Autor:
A. Yu. Mayor, D. Yu. Proschenko, Sergey Golik, A. A. Podlesnyih, I. V. Postnova, Yu. A. Shchipunov
Publikováno v:
22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics.
Investigation of nonlinear optical properties of solutions of carbon quantum dots synthesized by hydrothermal synthesis of chitin before and after coating with titanium dioxide. It is shown that the titanium dioxide has an activating effect, allows v