Infrared Reflection Spectra of (FeIn2S4)x∙(In2S3)1–x Solid Solutions

Journal of Applied Spectroscopy - IR reflectance spectroscopy at 50–450 cm–1 was used to study homogeneous monocrystals of (FeIn2S3)x?(In2S3)1–x grown by the method of...     

Effect of the multistage chemical treatment of carbon nanotubes on their purity and quality of walls

The effect of chemical methods that include the gas-phase and liquid-phase selective oxidation methods, of hydrochloric acid when used in different sequences, and of concentrated nitric acid on the purification efficiency of carbon nanotubes after their synthesis is studied. Changes in the quality of walls of this material at different stages of purification are studied physicochemically.     

Vibrational spectra of In2S3, CuIn5S8 and AgIn5S8 compounds with a spinel structure

The IR reflection spectra of In₂S₃, CuIn₅S₈, AgIn₅S₈ compounds with a spinel structure are investigated. Using the DA-K-K method, we determined the frequencies of longitudinal and transverse phonons, attenuation coefficients of phonons, and IR intensities, as well as the dielectric constants ε₀ and ε_∞. Belarusian State University of Information Science and Radioelectronics, 6, P. Brovka St., Minsk 220600, Belarus. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 64, No. 2, pp. 263–265, March–April, 1997.     

Vibrational spectra of the ternary compounds CuAlSe2 and CuGaSe2 and the solid solutions CuAl1−xGaxSe2

Translated from Zhurnal Prikladnol Spektroskopii, Vol. 52, No. 1, pp. 64–68, January, 1990.     

Effect of the initial state of carbon nanotubes on their ability to be dispersed in polar solvents upon liquid-phase oxidative treatments

Effect of the structural defectiveness of carbon nanotubes on the influence exerted on these nanotubes by their liquid-phase treatments with oxidizing agents (hydrogen peroxide, concentrated nitric acid, and its mixture with sulfuric acid) was studied. It was found that this factor affects changes in the structure of oxidized carbon nanotubes, their hydrophilicity, high-quality arrays of these tubes, and their ability to form stable dispersions in water, ethanol, isopropanol, and acetone.     

Optical and Electrophysical Properties of Thin Zinc Oxide Films Doped with Manganese Oxide and Obtained by Laser Deposition

Journal of Applied Spectroscopy - Nanostructured thin films on a silicon substrate were obtained on a ceramic of zinc oxide doped with manganese oxide by high-frequency periodic pulsed laser action...