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Title:
COMPOSITION, FILM, LAYERED STRUCTURE, LIGHT-EMITTING DEVICE, AND DISPLAY
Document Type and Number:
WIPO Patent Application WO/2019/022194
Kind Code:
A1
Abstract:
The present invention relates to a composition having light-emitting properties and including component (1) and component (2) below. Component (1) is a perovskite compound having A, B, and X as constituent components thereof, and component (2) is inorganic fine particles having a specific surface area of 0.01 m2/g to 150 m2/g, A being a component positioned at each vertex of a hexahedron having B at the center thereof in a perovskite-type crystal structure, A also being a monovalent cation, X representing a component positioned at each vertex of an octahedron having B at the center thereof in the perovskite-type crystal structure, X also being at least one species of anion selected from the group consisting of halide ions and thiocyanate ions, and B being a component positioned at the center of the hexahedron in which A is disposed at the vertices thereof and a component positioned at the center of the octahedron in which X is disposed at the vertices thereof in the perovskite-type crystal structure, B also being a metal ion.

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Inventors:
NAITO SHOTA (JP)
MASE KENTARO (JP)
Application Number:
PCT/JP2018/028064
Publication Date:
January 31, 2019
Filing Date:
July 26, 2018
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/20; C09K11/66; H01L33/50
Domestic Patent References:
WO2010110204A12010-09-30
Foreign References:
JP2012078538A2012-04-19
JP2008134585A2008-06-12
EP3184602A12017-06-28
JP2017146318A2017-08-24
Other References:
PROTESESCU, L. ET AL.: "Nanocrystals of Cesium Lead Halide Perovski tes (CsPbX3, X=C1, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut", NANO LETTERS, vol. 15, no. 6, 2 February 2015 (2015-02-02), pages 3692 - 3696, XP055568534, Retrieved from the Internet
L. PROTESESCUS. YAKUNINM. I. BODNARCHUKF. KRIEGR. CAPUTOC. H. HENDONR. X. YANGA. WALSHM. V. KOVALENKO, NANO LETTERS, vol. 15, 2015, pages 3692 - 3696
P. P. BOIX ET AL., J. PHYS. CHEM. LETT., vol. 6, 2015, pages 898 - 907
NANO LETT., vol. 15, 2015, pages 3692 - 3696
ACSNANO, vol. 9, 2015, pages 4533 - 4542
See also references of EP 3660552A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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