Deposition of special thin layers with high and low resistance in space charge region of surface barrier photoconverters based on the p-Cu1. 8S/n-CdS structure leads to a sufficient increase in photosensitivity and decrease in dark tunneling-recombination current. Highly efficient and stable polycrystalline photoconverters of ultraviolet radiation based on polycrystalline CdS have bee... https://cosmeticssquadets.shop/product-category/home-test-kits/