US 12,247,112 B2
Perovskite-polymer composite materials, devices, and methods
Zhibin Yu, Tallahassee, FL (US); Haoran Li, Tallahassee, FL (US); and Xin Shan, Tallahassee, FL (US)
Assigned to The Florida State University Research Foundation, Inc., Tallahassee, FL (US)
Appl. No. 16/978,231
Filed by The Florida State University Research Foundation, Inc., Tallahassee, FL (US)
PCT Filed Apr. 4, 2019, PCT No. PCT/US2019/025731
§ 371(c)(1), (2) Date Sep. 4, 2020,
PCT Pub. No. WO2019/195517, PCT Pub. Date Oct. 10, 2019.
Claims priority of provisional application 62/653,038, filed on Apr. 5, 2018.
Prior Publication US 2021/0002505 A1, Jan. 7, 2021
Int. Cl. C08K 3/16 (2006.01); H10K 30/60 (2023.01); H10K 39/36 (2023.01); H10K 71/13 (2023.01); G01T 1/24 (2006.01); H10K 85/50 (2023.01); H10K 102/00 (2023.01)
CPC C08K 3/16 (2013.01) [H10K 30/60 (2023.02); H10K 39/36 (2023.02); H10K 71/13 (2023.02); G01T 1/24 (2013.01); H10K 85/50 (2023.02); H10K 2102/351 (2023.02)] 8 Claims
OG exemplary drawing
 
1. A composite material comprising:
a polymer matrix comprising a polymer, wherein the polymer comprises poly(2-hydroxyethyl methacrylate) or polyvinyl alcohol (PVA); and
a metal halide perovskite dispersed in the polymer matrix;
wherein the metal halide perovskite is a lead-free metal halide double perovskite of the following formula—
Cs2BB′X6  (formula (I)),
wherein B is Sb or Bi,
B′ is Cu, Ag, or Au, and
X is Cl, Br, or I; and
wherein (i) B is Bi, B′ is Ag, X is Br, and the lead-free metal halide double perovskite has the formula Cs2BiAgBr6, (ii) B is Bi, B′ is Au, X is Br, and the lead-free metal halide double perovskite has the formula Cs2BiAuBr6, (iii) B is Sb, B′ is Ag, X is Br, and the lead-free metal halide double perovskite has the formula Cs2SbAgBr6, or (iv) B is Sb, B′ is Au, X is Br, and the lead-free metal halide double perovskite has the formula Cs2SbAuBr6.