METHOD FOR PRODUCING LUMINESCENT NANOSCALE OPTICALLY TRANSPARENT MgALOCERAMICS Russian patent published in 2022 - IPC C04B35/443 C04B35/645 B82Y30/00 C09K11/64 

FIELD: nanotechnology.

SUBSTANCE: invention relates to the field of optical oxide nanoceramics technology based on alumomagnesium spinel (MgAl₂O₄) obtained under thermobaric quenching conditions, and can be used as a functional material of optoelectronics and photonics devices, such as a spectrally tunable phosphor, a working substance for pc-WLEDs (phosphor-converted white light-emitting diodes), the production of optical sensors of sensors sensitive to the UV spectral range. The initial nanopowder of alumomagnesium spinel, obtained as a result of co-deposition from solutions of magnesium and aluminum nitrates, is degassed and mixed with graphene in a ratio of 1000:1. The resulting mixture is encapsulated in platinum foil and subjected to a comprehensive thermobaric effect at temperatures from 550 to 600°C in the pressure range from 2 to 8 GPa for 10 minutes.

EFFECT: selection of optimal initial components and modes of the thermobaric exposure method for obtaining luminescent transparent MgAl₂O₄ nanoceramics.

1 cl, 1 tbl, 1 ex, 5 dwg