Semiconducting thin films of titanium oxide (TiO2) transparent in the UV-visible region were prepared on mica surface by the liquid-phase deposition method. Their irradiation by laser at 405 nm induced photoluminescence at 1700 nm. It was shown that film refractive index (n) depended on the wavelength.
Investigation of nonlinear optical properties of solutions of carbon quantum dots synthesized by hydrothermal synthesis of chitin before and after coating with titanium dioxide. It is shown that the titanium dioxide has an activating effect, allows varying the carbon quantum dots non-linear characteristics.
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