Invention Grant
- Patent Title: Large-grain crystallized metal chalcogenide film, colloidal solution of amorphous particles, and preparation methods
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Application No.: US14413316Application Date: 2013-07-04
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Publication No.: US09731262B2Publication Date: 2017-08-15
- Inventor: Stephane Bourdais , Christophe Chone , Yan Cuccaro
- Applicant: IMRA EUROPE SAS
- Applicant Address: FR Valbonne
- Assignee: IMRA EUROPE SAS
- Current Assignee: IMRA EUROPE SAS
- Current Assignee Address: FR Valbonne
- Agency: Ladas & Parry LLP
- Priority: FR1257242 20120726
- International Application: PCT/FR2013/051597 WO 20130704
- International Announcement: WO2014/016489 WO 20140130
- Main IPC: B01F3/00
- IPC: B01F3/00 ; B01F17/00 ; B01J13/00 ; C09K3/00 ; B01F3/12 ; B82Y30/00 ; B82Y40/00 ; H01L31/0224 ; H01L31/0296 ; H01L31/032 ; H01L31/0368 ; H01L31/18
Abstract:
The present invention relates to a method for preparing an aqueous or hydro-alcoholic colloidal solution of metal chalcogenide amorphous nanoparticles notably of the Cu2ZnSnS4 (CZTS) type and to the obtained colloidal solution.The present invention also relates to a method for manufacturing a film of large-grain crystallized semi-conducting metal chalcogenide film notably of CZTS obtained from an aqueous or hydro-alcoholic colloidal solution according to the invention, said film being useful as an absorption layer deposited on a substrate applied in a solid photovoltaic device.
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