3 results about "Diphenyl sulfide" patented technology

This invention discloses a method for preparing diphenyl sulfide compounds from arylsulfonyl chlorides, comprising the following steps: using a sulfonyl chloride compound as shown in formula (I) as a raw material, adding a catalyst, ligand, additive, base, and solvent to a reactor, and reacting under a nitrogen atmosphere to obtain a diphenyl sulfide compound as shown in formula (II). The reaction equation is as follows: wherein the H on the benzene ring is substituted or not substituted by a substituent R, and when substituted, R is fluorine, chlorine, bromine, methyl, tert-butyl, or trifluoromethyl. This invention provides mild reaction conditions, uses inexpensive and readily available raw materials, and efficiently promotes the preparation of sulfide compounds.

The present application relates to the technical field of perovskite solar cells, and particularly relates to a diphenyl sulfide derivative, a preparation method thereof and a perovskite solar cell. The compound has dual functions of defect passivation and carrier transport through unique molecular structure design, and can effectively regulate the crystallization behavior of a perovskite thin film. When the compound is added to a perovskite precursor solution, the coordination of sulfur atoms and lead ions in the perovskite and the interaction of halogen atoms and lattice defects can significantly reduce the defect state density of the perovskite thin film, inhibit non-radiative recombination and ion migration, and optimize the charge transport path, thereby improving the open-circuit voltage, fill factor and power conversion efficiency of the perovskite device. In addition, the synthesis path and application method of the diphenyl sulfide derivative provided by the present application have the advantages of simple operation, controllable cost and great industrialization potential, and provide a new scheme for the preparation of high-efficiency and stable perovskite solar cells.

This invention discloses a method for preparing asymmetric diphenyl sulfide compounds. Disubstituted phenyl disulfide and lithium chloride-containing substituted phenyl magnesium halide (Knochel-type Grignard reagent) are dissolved in an organic solvent, and the reaction is stirred at room temperature while the reaction progress is monitored using gas chromatography. After approximately 2 hours, the reaction proceeds completely. The reaction solution is extracted with ethyl acetate, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to obtain a crude product. Subsequently, the crude product is purified by column chromatography to obtain the desired asymmetric diphenyl sulfide compounds. This method uses disubstituted phenyl disulfide and lithium chloride-containing substituted phenyl magnesium halide (Knochel-type Grignard reagent) as starting materials to synthesize asymmetric diphenyl sulfide compounds. The synthetic route is simple, requires no external transition metal catalyst, exhibits good functional group tolerance, can be scaled up, and is easy for industrial production.