No abstract

In this work, the influence of technological parameters on the current-voltage characteristics of solar cells with porous silicon is investigated. It is shown that for photosensitive structures with a porous layer, the optimal mode is pore formation by electrochemical etching followed by diffusion. The effect of etching modes affects the character of the photosensitivity curve.

Materials based on porous silicon are extremely attractive for biomedical applications due to their simple and flexible production, biocompatibility, biodegradability, controlled morphology, and multiple ways of introducing the drug into the body. This paper presents the results of studies of porous structures with a broad spectrum antibiotic ceftriaxone. It has been shown that the characteristics of the porous structure change upon saturation of the pores with the drug. It was shown that solutions of porous silicon + ceftriaxone have a characteristic peak at a wavelength of 1070 nm with increasing sonication time

No abstract

In this paper, we propose a method for reducing the energy loss of photosensitive structures based on nanocrystalline silicon using passivating coatings of dysprosium fluoride. Since this material has good optical and photoelectric properties, when preparing Si/DyF3 structures, the dielectric film makes it possible to reduce the number of recombination centers and increase light absorption. Methods for creating and studying photosensitive structures with coatings are shown. A technique for determining the thickness of a dysprosium fluoride coating due to light interference is described. The results of studying the photosensitivity spectra and the reflectance of the obtained photosensitive structures are presented. The positive effect of silicon nanostructures, as well as dysprosium fluoride films on the photosensitivity spectra of the structures, is shown. With the help of the data obtained, it is planned to improve the existing technology for creating photosensitive structures based on porous silicon in order to increase their output characteristics.