	US 11,888,098 B2
	Composition, film, laminated structure, light-emitting device, and display
Shota Naito, Tsukuba (JP); and Kentaro Mase, Osaka (JP)
Assigned to SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo (JP)
Appl. No. 16/632,942
Filed by Sumitomo Chemical Company, Limited, Tokyo (JP)
PCT Filed Jul. 26, 2018, PCT No. PCT/JP2018/028064 § 371(c)(1), (2) Date Jan. 22, 2020, PCT Pub. No. WO2019/022194, PCT Pub. Date Jan. 31, 2019.
Claims priority of application No. 2017-146318 (JP), filed on Jul. 28, 2017.
Prior Publication US 2020/0243732 A1, Jul. 30, 2020
Int. Cl. C09K 11/02 (2006.01); C09K 3/14 (2006.01); C09K 11/66 (2006.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01); G02F 1/13357 (2006.01); H01L 25/075 (2006.01); H01L 33/28 (2010.01)

CPC H01L 33/56 (2013.01) [C09K 11/02 (2013.01); C09K 11/66 (2013.01); C09K 11/665 (2013.01); G02F 1/133603 (2013.01); H01L 25/0753 (2013.01); H01L 33/28 (2013.01)]

20 Claims

1. A composition having a light-emitting property comprising:

a perovskite compound including

a metal ion,

a monovalent cation positioned at each vertex of a hexahedron having the metal ion at the center in a perovskite type crystal structure,

at least one anion selected from the group consisting of a halide ion and a thiocyanate ion, the anion being positioned at each vertex of an octahedron having the metal ion at the center in the perovskite type crystal structure; and

inorganic fine particles having a specific surface area of 0.01 m²/g to 150 m²/g, and

wherein an average particle diameter of the inorganic fine particles is in a range of 3.4 μm to 100 μm.