An object of the present invention is to provide a curable composition comprising a fluorescent particle containing a perovskite compound, wherein a decrease in the quantum yield of a film formed by curing the curable composition due to heat can be suppressed; a film formed by curing the curable composition; and a laminated body and a display apparatus comprising the film. Provided are a curable composition comprising a fluorescent particle (A) containing a perovskite compound, a photopolymerizable compound (B), a photopolymerization initiator (C), and an antioxidant (D); a film formed by curing the curable composition; and a laminated body and a display apparatus comprising the film.

Provided is a method for synthesizing a perovskite quantum dot film, including: preparing a cellulose nanocrystal (CNC) solution, wherein the CNC solution includes a plurality of CNCs with sulfate groups; preparing a precursor solution; mixing the CNC solution and the precursor solution to form a mixed solution; and filtering and drying the mixed solution to form a perovskite quantum dot film.

Provided are a perovskite optoelectronic device containing an exciton buffer layer, and a method for manufacturing the same. The optoelectronic device of the present invention comprises: an exciton buffer layer in which a first electrode, a conductive layer disposed on the first electrode and comprising a conductive material, and a surface buffer layer containing fluorine-based material having lower surface energy than the conductive material are sequentially deposited; a photoactive layer disposed on the exciton buffer layer and containing a perovskite photoactive layer; and a second electrode disposed on the photoactive layer. Accordingly, a perovskite is formed with a combined FCC and BSS crystal structure in a nanoparticle photoactive layer. The present invention can also form a lamellar or layered structure in which an organic plane and an inorganic plane are alternatively deposited; and an exciton can be bound by the inorganic plane, thereby being capable of expressing high color purity.

Provided are metal halide perovskite light emitting device and method of manufacturing the same. The metal halide perovskite light emitting device uses perovskite film having a multi-dimensional crystal structure derived from a proton transfer reaction as light emitting layer. Due to self-assembled shell of the perovskite film, ion movement is suppressed and surface defects are removed. Thereby, photoluminescence intensity, luminescence efficiency and lifetime are improved. By injecting a fluorine-based material and a basic material into the PEDOT:PSS conductive polymer used as the conventional hole injection layer, the acidity is controlled and the work function of the interface is improved. Furthermore, chemically stable graphene barrier layer protects the electrode vulnerable to acid, so that a high-efficiency light emitting device can be manufactured.

A nanoparticle-in-perovskite (NIP) scintillator includes a host matrix and one or more nanoparticles embedded in the host matrix. The one or more nanoparticles are embedded in the host matrix at a loading volume of 20% or less. The host matrix has a thickness of 1 mm or greater. The host matrix is a polycrystalline perovskite material. In addition, the NIP scintillator is configured to exhibit a luminescent response to ionizing radiation having a photon energy of 1 keV or greater.

The invention provides a process for producing a passivated semiconductor, which process comprises treating a semiconductor with a passivating agent, wherein: the semiconductor comprises a crystalline compound comprising: (i) one or more first cations (A); (ii) one or more metal cations (M); and (iii) one or more anions (X); and the passivating agent comprises a compound comprising an oxygen-oxygen single bond. A composition and the use of a passivating agent are also provided.

The present disclosure relates to a laminated structure comprising a film comprising a light-emitting perovskite compound, a first substrate, and a second substrate, in which the film is positioned between the first substrate and the second substrate.

An is disclosed. The apparatus comprises a two-dimensional perovskite having a polaronic emission Stokes' shifted by at least 50 nm to minimise loss due to re-absorption.

Disclosed are processes for preparing hybrid perovskite quantum dots and the resulting hybrid perovskite quantum dots and uses thereof. Such quantum dots are useful as semiconductors in devices such as solar cells and light-emitting diodes.

A thin film includes a luminescent compound represented by Formula 1 and a random copolymer, wherein the random copolymer includes a first repeating unit including at least one aromatic ring, and a second repeating unit including a heteroatom including at least one lone pair of electrons,
[A].sub.n[Q].sub.m[X].sub.l  Formula 1
wherein, in Formula 1, A is a monovalent organic cation, a monovalent inorganic cation, or a combination thereof, Q is a divalent metal cation, a divalent metalloid cation, or a combination thereof, X is at least one monovalent halogen ion, n is an integer from 1 to 3, m is an integer from 1 to 2, and l is an integer from 1 to 5.