摘要:
[Problem] To provide a polymerization inhibitor for silane that, when added at the time of heating distillation, enables purification of silane to a high degree because a polymer is not formed even if heating by distillation is performed and cyclic silane can be present as a monomer. To provide a composition containing polysilane obtained by using a polymerization inhibitor to obtain high-purity cyclic silane, in particular high-purity cyclopentasilane and polymerizing the cyclic silane is applied onto a substrate as a coating-type polysilane composition and fired, and this produces a good silicon thin film with high conductivity. [Solution] A polymerization inhibitor for silane, the polymerization inhibitor including secondary or tertiary aromatic amines. The silane is cyclic silane. The silane is cyclopentasilane. The aromatic amines are secondary aromatic amines. The aromatic group is a phenyl group or a naphthyl group. The polymerization inhibitor is contained at a proportion of 0.01 to 10 mol% per mole of the silane. In the polymerization inhibitor, a boiling point of the aromatic amines is 196°C or higher.
摘要:
There is provided a highly conductive and good silicon thin film which is obtained by applying a coating-type polysilane composition prepared by use of a polysilane having a large weight average molecular weight to a substrate, followed by baking. A polysilane having a weight average molecular weight of 5,000 to 8,000. The polysilane may be a polymer of cyclopentasilane. A silicon film obtained by applying a polysilane composition in which the polysilane is dissolved in a solvent to a substrate, and baking the substrate at 100°C to 425°C. The cyclopentasilane may be polymerized in the presence of a palladium catalyst supported on a polymer. The palladium catalyst supported on a polymer may be a catalyst in which palladium as a catalyst component is immobilized on a functional polystyrene. The palladium may be a palladium compound or a palladium complex. The palladium-immobilized catalyst may be formed by microencapsulating a zero-valent palladium complex or a divalent palladium compound with a functional polystyrene. The zero-valent palladium complex may be a tetrakis(triphenylphosphine)palladium (0) complex.
摘要:
[Problem] To provide a method of producing a silicon hydride oxide-containing organic solvent (coating solution) with which a silicon hydride oxide coating film can be formed on a substrate. Using the silicon hydride oxide-containing organic solvent makes it unnecessary to place a coating solution in non-oxidizing atmosphere at the time of coating of the substrate or to perform heat treatment on the substrate after the coating because a silicon hydride oxide is formed in the coating solution before the coating. [Solution] A method of producing a silicon hydride oxide-containing organic solvent including: blowing an oxygen-containing gas on an organic solvent containing a silicon hydride or a polymer thereof. The silicon hydride is cyclic silane. The silicon hydride is cyclopentasilane. An oxide of the silicon hydride or the polymer thereof is contained at a proportion of (residual Si-H groups)/(Si-H groups before oxidation) = 1 to 40 mol%. The cyclic silane can be obtained by causing the cyclic silane to react with a hydrogen halide in cyclohexane in the presence of an aluminum halide, dissolving the obtained cyclic silane in an organic solvent and reducing it.