A method for producing a polysilane includes a step of reacting (i) at least two silane monomers and (ii) at least one alkali metal. The silane monomers contain the following structural units: at least one aryl group, at least one alkyl group, at least one alkenyl group, and at least three halogen atoms. At least three of the halogen atoms are bonded to a silicon atom of one of the silane monomers.
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