Solid material in the divided state, process for the production of such a material, and use of such a material in a photovoltaic cell

US8574538B2 · kind B2 · utility

Assignees

• UNIVERSITE PAUL SABATIER—TOULOUSE III · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE TOULOUSE · FR
• ECOLE SUPERIEURE DES BEAUX-ARTS DE LA REUNION · FR

Inventors

• Jean-Yves Chane-Ching · Eaubonne, FR
• Arnaud Gillorin · Magnanville, FR
• Xavier Marie · Péchabou, FR
• Pascal Dufour · Toronto, CA
• Oana Zaberca · Toulouse, FR

Key dates

• Filing date: Sep 8, 2010
• Grant date: Nov 5, 2013
• Expiry date: Sep 8, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a solid material with the following formula (A): (Cu+1a-u; Ag+1u; Zn+2b-v-(y/2); Cd+2v; Sn+4c-w-(y/2); 1X+4w; 2X+3y; S−2x)(A), in which the solid material: is in divided state in the form of particles having a mean equivalent diameter of 15 nm to 400 nm; has, according to X-ray diffraction analysis of the solid material, a unique crystalline structure; is suitable for forming a stable dispersion of at least one solid material with formula (A) in a liquid, referred to as dispersion liquid, made up of at least one compound with a value of δp higher than 8 and a value of δH higher than 5.