Invention Grant
- Patent Title: Copper-containing nanocrystals and methods of preparation therefor
- Patent Title (中): 含铜纳米晶体及其制备方法
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Application No.: US14367775Application Date: 2012-12-24
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Publication No.: US09346686B2Publication Date: 2016-05-24
- Inventor: Zhifeng Ding , Falong Jia , Dave Love , Myong In Oh , Daniel Vaccarello , Amy Tapley
- Applicant: The University of Western Ontario
- Applicant Address: CA London, ON
- Assignee: The University of Western Ontario
- Current Assignee: The University of Western Ontario
- Current Assignee Address: CA London, ON
- Agency: Fiala & Weaver P.L.L.C.
- International Application: PCT/CA2012/050940 WO 20121224
- International Announcement: WO2013/091114 WO 20130627
- Main IPC: G01G15/00
- IPC: G01G15/00 ; C01G19/00 ; C01B17/00 ; H01L31/00 ; C01G15/00 ; C01B19/00 ; H01L31/032 ; H01L31/0352 ; B82Y30/00
Abstract:
A one-pot approach for preparing ArSH capped Cu2ZnSnS4, Cu2ZnSn(S(1-x)Sex)4, Cu2SnS3, CuInS2, and CuIn(S(1-x)Sex)2 nanocrystals is provided. Examples involving reacting copper (II) acetylacetonate and indium chloride with thiourea and 2-mercapto-5-n-propylpyrimidine in the presence of an organic solvent are described. Monodispersed CuInS2, nanocrystals having a size of about 100 nm were prepared. Examples involving reacting copper (II) acetylacetonate, zinc chloride, and tin chloride with thiourea and 2-mercapto-5-n-propylpyrimidine in the presence of an organic solvent are described. Monodispersed Cu2ZnSnS4 nanocrystals having a size of about 2 nm were prepared. Nanociystals obtained were found to have excellent crystallinity, stoichiometry, and high collective photovoltaic activity without the need for postprocessing such as high temperature annihilation in a sulfur atmosphere.
Public/Granted literature
- US20150360967A1 COPPER-CONTAINING NANOCRYSTALS AND METHODS OF PREPARATION THEREFOR Public/Granted day:2015-12-17
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