US 12,265,299 B1
Method for preparing nanosized mixed crystal of cyanuric acid coated halide perovskite and use thereof
Qi Pan, Suzhou (CN); Muhan Cao, Suzhou (CN); Jie Fu, Suzhou (CN); and Jingjing Hu, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Appl. No. 17/912,746
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
PCT Filed Dec. 30, 2021, PCT No. PCT/CN2021/143116
§ 371(c)(1), (2) Date Sep. 19, 2022,
PCT Pub. No. WO2023/065535, PCT Pub. Date Apr. 27, 2023.
Claims priority of application No. 202111217328.5 (CN), filed on Oct. 19, 2021.
Int. Cl. G02F 1/13357 (2006.01); C09K 11/02 (2006.01); C09K 11/66 (2006.01); C09K 11/88 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01)
CPC G02F 1/133606 (2013.01) [C09K 11/025 (2013.01); C09K 11/665 (2013.01); C09K 11/883 (2013.01); G02F 1/133603 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for preparing a nanosized mixed crystal of cyanuric acid coated halide perovskite, comprising steps of:
(1) dispersing cesium halide, a lead salt, and urea in water, and stirring uniformly to obtain a mixed solution, wherein the lead salt is selected from the group consisting of lead bromide, lead nitrate, lead acetate, and a hydrate thereof and any combination thereof; and
(2) adding phosphoric acid to the mixed solution, and subjecting to microwave heating, to obtain a solid after water is evaporated off, which is allowed to stand to obtain the cyanuric acid coated halide perovskite nanosized mixed crystal.