2 results about "Sulfaguanidine" patented technology

The application provides a preparation method of a hybrid perovskite solar cell passivated by sulfaguanidine and 1,3-propanediamine hydroiodide, and relates to the technical field of perovskite solar cells. The material is used for passivating the PIN type structure hybrid perovskite solar cell passivation layer. After the preparation of the hybrid perovskite thin film is completed, a certain concentration of mixed passivation molecule solution is dynamically spin-coated on the surface. The passivation molecule is sulfaguanidine and 1,3-propanediamine hydroiodide. By mixing sulfaguanidine and 1,3-propanediamine hydroiodide in a certain proportion, the solution spin-coating method is used to spin-coat on the surface of the perovskite light-absorbing layer. Based on the characteristics of chemical passivation and field effect passivation, the method can reduce the surface defects of the hybrid perovskite thin film, promote the extraction of carriers, inhibit non-radiative recombination, and improve the photoelectric conversion efficiency of the hybrid perovskite solar cell.

This invention belongs to the field of organic synthesis technology, specifically disclosing a bromoisoxazole compound and its synthesis and application. Compared with existing technologies that require the use of precious metal catalysts, additional oxidants, and high temperatures of 100°C, this process is the first to use trifluoroacetic acid (TFA) as a promoter, achieving efficient conversion in a mild air atmosphere of 28-60°C. This not only avoids the use of expensive metals and the risk of environmental pollution, but also has the advantages of inexpensive and readily available raw materials, short reaction time of only 4-12 hours, and a yield of up to 94%, showing significant industrialization advantages. Experimental data confirm that this series of compounds exhibits excellent biological activity, and its inhibitory effect on Staphylococcus aureus and Vibrio parahaemolyticus is significantly better than that of commercially available drugs sulfadiazine and sulfaguanidine. It has outstanding technological progress and broad market application prospects in the fields of developing new antibacterial drugs and food preservation.