Abstract: A method for chemically passivating a surface of a product made of a III-V semiconductor material in which a) a P(N) polymer film is formed by deposition in a solvent comprising liquid ammonia. The film is formed by deposition, without electrochemical assistance, in the solvent, in the presence of an oxidizing chemical additive comprising phosphorous and generating electrical charge carriers in said surface.

Abstract: The subject of the invention is a method of synthesizing a compound MxPy where M is an element belonging to one of columns II to XV of the Periodic Table of the Elements or to the family of lanthanides or to the family of actinides, characterized in that it includes the reaction of x moles of compound comprising the element M in its oxidation state 0 with y/4n moles of compound (P4)n. The method of the invention may be carried out at a temperature much lower than those necessary in the methods of the prior art. It also allows low-temperature formation of nanoparticles and stoichiometric reaction control. The applications of this method are numerous: magnetic ferro-magnets for MnP and FeP; hydrodesulfurization catalysts for Ni2P; luminescent nanoparticles for biological applications; microelectronics and optoelectronics for InP; and electronics for GaP. The latter two phosphides are also used in the photovoltaic energy field.

Abstract: The invention relates to a compound comprising at least one polymeric chain incorporating phosphorus atoms and consisting, in all or in part, of identical or different repeated units, each of said units being represented by the following formula: wherein X3 represents —[Si(O2)]—; or —O—[Si(R1R2)O]— with R1 and R2 being, independently of each other, a C1-C30 alkyl or alkoxy group, a C5-C30 aryl group; or a mono- or polyorganosilicate derived radical; or —N(R3)— with R3 being —H, a C1-C30 alkyl group or a C5-C30 aryl group, optionally substituted with —OH or —NH2, or at least one unit of general formula (I), and ?X4 represents an electron pair, ?O, ?S, ?NR4 with R4 representing a C1-C30 alkyl group or a C5-C30 aryl group, ?Se or ?Te, and its use for complexing metal atoms.

Abstract: The subject of the invention is a method of synthesizing a compound MxPy where M is an element belonging to one of columns II to XV of the Periodic Table of the Elements or to the family of lanthanides or to the family of actinides, characterized in that it includes the reaction of x moles of compound comprising the element M in its oxidation state 0 with y/4n moles of compound (P4)n. The method of the invention may be carried out at a temperature much lower than those necessary in the methods of the prior art. It also allows low-temperature formation of nanoparticles and stoichiometric reaction control. The applications of this method are numerous: magnetic ferro-magnets magnets for MnP and FeP; hydrodesulfurization catalysts for Ni2P; luminescent nanoparticles for biological applications; microelectronics and optoelectronics for InP; and electronics for GaP. The latter two phosphides are also used in the photovoltaic energy field.

Abstract: The invention relates to a compound comprising at least one polymeric chain incorporating phosphorus atoms and consisting, in all or in part, of identical or different repeated units, each of said units being represented by the following formula: wherein X3 represents —[Si(O2)]—; or —O—[Si(R1R2)O]— with R1 and R2 being, independently of each other, a C1-C30 alkyl or alkoxy group, a C5-C30 aryl group; or a mono- or polyorganosilicate derived radical; or —N(R3)— with R3 being —H, a C1-C30 alkyl group or a C5-C30 aryl group, optionally substituted with —OH or —NH2, or at least one unit of general formula (I), and ?X4 represents an electron pair, ?O, ?S, ?NR4 with R4 representing a C1-C30 alkyl group or a C5-C30 aryl group, ?Se or ?Te, and its use for complexing metal atoms.