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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12302681 B1

PDFFull Text
Date of Patent:
May. 13, 2025

Filed:

Sep. 18, 2023

Method of formulating perovskite solar cell materials

Applicant:

Cubicpv Inc., Dallas, TX (US);

Inventors:

Michael D. Irwin, Heath, TX (US);

Jerred A. Chute, Dallas, TX (US);

Vivek V. Dhas, Dallas, TX (US);

Assignee:

CubicPV Inc., Bedford, MA (US);

Attorney:

Baker Botts L.L.P.

Primary Examiner:

Shamim Ahmed

Assistant Examiner:

Bradford M Gates

Int. Cl.
CPC ...
B05D 1/38 (2006.01); B05D 3/10 (2006.01); H01G 9/20 (2006.01); H01L 31/0304 (2006.01); H03K 5/19 (2006.01); H03K 5/24 (2006.01); H03K 17/22 (2006.01); H10K 30/00 (2023.01); H10K 30/15 (2023.01); H10K 71/12 (2023.01); H10K 71/40 (2023.01); H10K 85/30 (2023.01); H01L 31/0256 (2006.01);
U.S. Cl.
CPC ...
H10K 30/451 (2023.02); B05D 1/38 (2013.01); B05D 3/107 (2013.01); H01G 9/2045 (2013.01); H01L 31/0304 (2013.01); H03K 5/19 (2013.01); H03K 5/2472 (2013.01); H03K 17/223 (2013.01); H10K 30/15 (2023.02); H10K 30/151 (2023.02); H10K 71/12 (2023.02); H10K 71/40 (2023.02); H10K 85/30 (2023.02); H01L 2031/0344 (2013.01); Y02E 10/542 (2013.01); Y02E 10/549 (2013.01);
Abstract

A method for preparing photoactive perovskite materials. The method comprises the steps of preparing a lead and tin halide precursor ink. Preparing a lead and tin halide precursor ink comprises the steps of introducing a lead halide and a tin halide into a vessel; introducing a first solvent to the vessel; and contacting the lead halide and the halide with the first solvent to dissolve the lead halide and the tin halide to form the lead and tin halide precursor ink; depositing the lead and tin halide precursor ink onto a substrate; drying the lead and tin halide precursor ink to form a thin film; annealing the thin film; and rinsing the thin film with a solvent comprising: a second solvent; a first salt selected from the group consisting of methylammonium halide, formamidinimum halide, guanidinium halide, 1,2,2-triaminovinylammonium halide, and 5-aminovaleric acid hydrohalide; and a second salt selected from the group consisting of methylammonium halide, formamidinimum halide, guanidinium halide, 1,2,2-triaminovinylammonium halide, and 5-aminovaleric acid hydrohalide.

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