FIELD: physics.
SUBSTANCE: material comprises a suspension of lead sulfide nanoparticles in the aqueous-alcoholic solution, metal nitrate and polyvinylpyrrolidone. Also the method is disclosed for treating a material, which comprises material irradiation by the electromagnetic radiation with the wavelengths of 455-635 nm and subsequent exposure at the room temperature without irradiation during 0.1-24 hours.
EFFECT: developing a composite material having high nonlinear optical and spectral fluorescent characteristics in the visible and near infrared spectral range, developing a high-performance method of processing the material, which does not require special manufacturing equipment.
2 cl, 9 dwg, 2 tbl, 5 ex
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