Journal
Scientific and Technical Journal of Information Technologies, Mechanics and Optics
UDK
Issue:3 (155)
Download PDF0 Kbyte
Polymer-salt synthesis and study on structure of vanadium-doped yttrium-aluminum garnet
Annotation
Nanoscaled YAG:V powders were synthesized using low-temperature polymer-salt method. A comparison of their structure with monocrystals structure was performed. Structure, morphology and chemical composition of materials were studied using XRD, SEM and energy-dispersive X-ray spectroscopy. Estimation of average sizes of nanocrystals and crystal cell parameters was performed based on XRD data. The results were compared with the results obtained earlier for YAG:V monocrystals. Nanopowders synthesized at 1000 °C consist from microscopic aggregates of YAG:V nanocrystals with average size of 43 nm and crystal structure characteristic for YAG monocrystals. It was found that V3+ incorporation and their substitution of aluminum ions leads to distortion of crystal cell. It was shown that this phenomenon is observed both in YAG:V monocrystals and nanopowders synthesized using low-temperature polymer-salt method. The infrared spectroscopy data shows the similarity of the monocrystal and nanopowders structure. Obtained powders can be applied for fabrication of light-absorbing optical ceramics and organo-inorganic composites.
Keywords
Постоянный URL
Articles in current issue
- Optical properties of the interface between indium tin oxides thin films and laser-deposited single-walled carbon nanotubes
- The xanthene fluorescent dyes usage for the microplastics in soil detection and for phytotests
- Investigation of the effect of the applied voltage to the control electrodes of a lithium niobate phase modulator on the intensity distribution at the ends of channel waveguides and on parasitic amplitude modulation
- Assessment of the quantitative composition of hydrate formation inhibitors by their infrared spectra
- Magneto optical properties of atmospheric air molecules
- Femtosecond laser modification of the ZnO:Ag sol-gel films within dichroism emergence
- Insights from Keldysh theory to plasma electron density in liquid water under excitation wavelength scaling
- Luminescent and colorimetric properties of silica-coated spherical cadmium telluride nanocrystals in an external electric field
- The sliding-mode observer for PMSM field-oriented sensorless control with adaptive filter and PLL
- Improving the algorithm for processing data from multisensor system in tasks of determining quality parameters in vegetable oils
- Lithium tetraborate co-doping with transition and alkali metals
- Analysis of chemical interactions during filling a cesium vapor cell for a quantum magnetometer
- Polymer-salt synthesis and study on structure of vanadium-doped yttrium-aluminum garnet
- Enhancing healthcare data security in cloud environments with dual authentication and optimal key-tuned encryption
- Elimination of distortions of weak images of astronomical objects on the example of Saturn, Jupiter and their satellites
- Method for generating information sequence segments using the quality functional of processing models
- Smartphone video motion deblur order model
- An approach to detecting L0-optimized attacks on image processing neural networks via means of mathematical statistics
- On the influence of a concentrated inclusion on the spectrum of natural vibrations of a string and Bernoulli-Euler beam
- Restoration of unsteady heat flow from a thermal energy accumulator by solving the inverse heat conduction problem
- Management of space surveillance radar temporal resource on fuzzy set theory
- Quantification and modeling of ankle biomechanical characteristics