C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 38/02 (2006.01) C09K 11/06 (2006.01)
Patent
CA 2398371
It is an object of this invention to increase the stability of the quantum well structure of laminar perovskite compounds having excellent optical characteristics and possible applications in light emitting elements. In this invention, it was discovered that amines having an unsaturated bond can be introduced into the organic layer of organic-inorganic laminar perovskite compounds comprising a metal halide and an organic amine, and the organic layer can be polymerized by applying external energy such as by irradiating with UV light or radiation. In this way, the quantum well structure is stabilized. This invention is an organic-inorganic laminar perovskite polymer compound produced by cross-linking unsaturated bonds of an organic-inorganic laminar perovskite compound represented by the general formula (RNH3)2MX4 (in the formula, R is a hydrocarbon group having an unsaturated bond, X is a halogen or mixture of same, M is Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd). R is represented by CH3(CH2)n C.ident.C-C.ident.CCH2 (n = 2-14). It is preferred that M is Pb, and X is a bromine atom.
L'invention concerne un composé lamellaire organique/inorganique du type pérovskite qui comprend un halogénure métallisé et une amine organique. Cette dernière, qui constitue la couche organique, est une amine comprenant des liaisons non saturées. On a découvert que la couche organique dudit composé subit une polymérisation et que la structure de puits quantique dudit composé se stabilise lorsqu'une énergie extérieure est appliquée sur ledit composé, par exemple, par rayonnement ultraviolet ou par un autre rayonnement. Le polymère lamellaire organique/inorganique du type pérovskite selon l'invention est formé par réticulation, au niveau des liaisons non saturées, d'un composé lamellaire organique/inorganique du type pérovskite représenté par la formule générale (RNH3)2MX4, dans laquelle R représente un groupe hydrocarbure non saturé ; X représente des atomes d'un ou de plusieurs halogènes ; et M représente un métal du groupe IVa, europium, cadmium, cuivre, fer, manganèse ou palladium.
Asai Keisuke
Takeoka Yuko
Japan Science And Technology Agency
Japan Science And Technology Corporation
Marks & Clerk
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