US 12,302,681 B2
Method of formulating perovskite solar cell materials
Michael D. Irwin, Heath, TX (US); Jerred A. Chute, Dallas, TX (US); and Vivek V. Dhas, Dallas, TX (US)
Assigned to CubicPV Inc., Bedford, MA (US)
Filed by CubicPV Inc., Dallas, TX (US)
Filed on Sep. 18, 2023, as Appl. No. 18/469,253.
Application 18/469,253 is a continuation of application No. 17/970,465, filed on Oct. 20, 2022, granted, now 11,800,726.
Application 17/970,465 is a continuation of application No. 16/939,907, filed on Jul. 27, 2020, granted, now 11,508,924, issued on Nov. 22, 2022.
Application 16/939,907 is a continuation of application No. 15/996,944, filed on Jun. 4, 2018, granted, now 10,741,779, issued on Aug. 11, 2020.
Application 15/996,944 is a continuation of application No. 15/068,187, filed on Mar. 11, 2016, granted, now 9,991,457, issued on Jun. 5, 2018.
Application 15/068,187 is a continuation of application No. 14/711,330, filed on May 13, 2015, granted, now 9,305,715, issued on Apr. 5, 2016.
Claims priority of provisional application 62/032,137, filed on Aug. 1, 2014.
Prior Publication US 2024/0008295 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. 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)
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)] 20 Claims
OG exemplary drawing
 
1. A method comprising the steps of:
preparing a precursor ink, wherein preparing the precursor ink comprises the steps of:
introducing lead halide and tin halide into a vessel, wherein the lead halide comprises a mixture of lead (II) chloride and lead (II) iodide;
introducing a first solvent to the vessel; and
contacting the lead halide and the tin halide with the first solvent to dissolve the lead halide and the tin halide to form the precursor ink;
depositing the precursor ink onto a substrate;
drying the precursor ink to form a thin film;
annealing the thin film; and
rinsing the thin film with a solution comprising:
a second solvent;
a first salt selected from the group consisting of methylammonium iodide, formamidinimum halide, guanidinium halide, 1,2,2-triaminovinylammonium halide, and 5-aminovaleric acid hydrohalide.
 
11. A perovskite material prepared by a process comprising the steps of:
preparing a precursor ink, wherein preparing the precursor ink comprises the steps of:
introducing a lead halide and tin halide into a vessel, wherein the lead halide comprises a mixture of lead (II) chloride and lead (II) iodide;
introducing a first solvent to the vessel; and
contacting the lead halide and the tin halide with the first solvent to dissolve the lead halide and the tin halide to form the precursor ink;
depositing the precursor ink onto a substrate;
drying the precursor ink to form a thin film;
annealing the thin film; and
rinsing the thin film, to form the perovskite material, with a solution comprising:
a second solvent; and
a first salt selected from the group consisting of methylammonium iodide, formamidinimum halide, guanidinium halide, 1,2,2-triaminovinylammonium halide, and 5-aminovaleric acid hydrohalide.