IP Library › Granted Patent US 12,040,140
Granted Patent B2
US 12,040,140 · App. 17/684,991 · Granted Jul 16, 2024

Coatings for electronic devices, solar cells, composite materials, and methods

Inventors: Biwu Ma (Tallahassee, FL); Qingquan He (Tallahassee, FL)
Assignee: The Florida State University Research Foundation, Inc.
H01G9/2009H01G9/0036H10K30/88H10K85/30H10K85/655H10K85/657H10K85/6572
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Quick Facts
Patent No.
US 12,040,140
App. No.
17/684,991
Granted
Jul 16, 2024
Kind
B2
Abstract

Methods of passivating surfaces, composite materials, and electronic devices including the composite materials. The composite materials can include a passivated film, such as a metal halide perovskite passivated with an organic dye. The electronic devices may include solar cells.

Claims (46)

1. A method of passivating a surface, the method comprising:

providing a mixture comprising a liquid and an organic dye derivative, wherein the organic dye derivative is at least partially dissolved in the liquid;

applying the mixture to a first surface of a film, wherein the film comprises a metal halide perovskite; and

annealing the film for a time and a temperature effective to convert the organic dye derivative to an organic dye;

wherein—

(A) the organic dye is

wherein R is hydrogen; and

(B) the organic dye derivative, respectively, is—

wherein each R is independently selected from

 wherein each R 1 is independently selected from a C 1 -C 6 hydrocarbyl; or

wherein—

(1) the organic dye is—

 and

(2) the organic dye derivative, respectively, is—

2. The method of claim 1 , wherein—

(A) the organic dye is

wherein R is hydrogen; and

(B) the organic dye derivative, respectively, is—

wherein each R is independently selected from

 wherein each R 1 is independently selected from a C 1 -C 6 hydrocarbyl.

3. The method of claim 1 , wherein—

(A) the organic dye is—

(B) the organic dye derivative, respectively, is—

4. The method of claim 1 , wherein the applying of the mixture to the surface of the film comprises spin-coating the mixture to the surface of the film.

5. The method of claim 1 , wherein the metal halide perovskite comprises methylammonium lead iodide (MAPbI 3 ).

6. The method of claim 1 , wherein the liquid comprises isopropanol, chlorobenzene, or a combination thereof.

7. The method of claim 1 , wherein a concentration of the organic dye derivative in the mixture is about 1.5 mg/mL to about 2.5 mg/mL.

8. The method of claim 1 , wherein the annealing comprises laser annealing, thermal annealing, or a combination thereof.

9. The method of claim 1 , wherein—

(A) the organic dye is

wherein R is hydrogen; and

(B) the organic dye derivative is—

wherein each R is independently selected from

 wherein each R 1 is independently selected from a C 1 -C 6 hydrocarbyl.

10. The method of claim 1 , wherein—

(A) the organic dye is

wherein R is hydrogen; and

(B) the organic dye derivative is—

wherein each R is independently selected from

 wherein each R 1 is independently selected from a C 1 -C 6 hydrocarbyl.

11. The method of claim 1 , wherein—

(A) the organic dye is—

(B) the organic dye derivative is—

12. The method of claim 1 , wherein—

(A) the organic dye is—

(B) the organic dye derivative is—

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2022
From: MA, BIWU; HE, QINGQUAN
To: THE FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
Reel/Frame 061166/0362 →
Continuity (2)
Provisional Application 63155418 · Mar 2, 2021
Related Publication 20230027415A1 · Jan 26, 2023