2017, №3

сс. 20-31

Luminescent Composites Based on Tetrafluoroethylene Copolymer Porous Films Produced by Introduction of Semiconductor Nanoparticles in Supercritical Medium

2017, №3

сс. 20-31

Цитировать

A.O. Rybaltovskii, V.M. Buznik, Yu.S. Zavorotny, P.S. Timashev, S.N. Churbanov, V.N. Bagratashvili

Key words: film composite, cadmium selenide, nanocrystalline silicon, diffusion implantation, luminescent properties, fiber matrix

A method to produce film composites based on the tetrafluoroethylene-vinylidene
fluoride fiber copolymer using diffusion implantation of nanoparticles dispersed in a
supercritical (SC) carbon dioxide CO2 medium has been developed. At the final stage
of the formation of such materials, a cold or hot pressing of impregnated porous films
is applied. The effect of treatment in SC-CO2 on the surface structure of pressed films
is discussed. The materials containing nanoparticles of semiconductors (cadmium
selenide and nanocrystalline silicon) whose radiation covers a range of 500—1000 nm
are obtained. Their luminescent characteristics under the laser excitation (irradiation
wavelength 405 nm) are presented.

doi:10.1134/S1990793118070102