Ir Sensory Properties of Multilayer Nanocomposite CuO/CNPs Films Produced by Electroporetic Synthesis

Purpose. Formation and studying the sensory properties of multilayer nanocomposite electrophoretic CuO/CNPs films in the infrared range.
Methods. Study of the morphology and size composition of CuO/CNPs nanocomposite films using atomic force microscopy and scanning electron microscopy; determination of the chemical composition using X-ray diffractometry, the study of sensory sensitivity under infrared irradiation with a fiber-optic laser source with a wavelength of λ = 1064 nm; study of the temporal characteristics of the induced photoelectromotive force using optoelectric measurements (ADC L-CARD E2010D) interfaced with a personal computer.
Results. Nanocomposite CuO/CNPs films 0.1 to 1 µm thick were obtained by electrophoretic synthesis on a glass substrate. It has been established that CuO/CNPs nanocomposite films are formed due to the ordered structuring of carbon nanoparticles along the direction of the electric field under the action of electrophoretic forces. At the same time, due to the electrolytic process, a layer of copper oxide from metal electrodes is formed on the surface of the carbon particles. The limiting size of carbon particles was 50-70 nm, depending on the parameters of film production. A technique has been developed for producing multilayer CuO/CNPs composite films with a thickness of one to ten layers. It has been established that when the synthesized ten-layer nanofilms are irradiated with infrared radiation with an intensity of 75 mW/cm-2, the value of the photogenerated EMF reaches 122.5 mV.
Conclusion. Multilayer nanocomposite CuO/CNPs films with infrared sensor properties were obtained. It has been established that with an increase in the thickness of the synthesized films from one to ten layers, the photo-EMF under IR irradiation with an intensity of 75 mW/cm-2 increases from 17 to 122.5 mV.

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