Disclosed herein is a polymeric film, the film comprising a polymeric matrix material, a plurality of perovskite nanocrystals and/or aggregates of perovskite nanocrystals dispersed throughout the polymeric matrix material. There is also disclosed a perovskite polymer resin composition, a perovskite-polymer resin composition, a perovskite ink and a method of forming a luminescent film using any one of the compositions or ink. Preferably, the perovskite material is a lead halide perovskite containing a cation selected from Cs, an alkylammonium ion, or a formamidinium ion. The polymeric matrix is preferably formed from monomers comprising a vinyl or an acrylate group.

The present invention relates to an ink composition including a semiconductor nanoparticle (1) which contains a perovskite compound, and a curable resin composition (2), in which the ink composition may further include a solvent (3), a value of Z in Formula (a) of Z=(O2+O3+N2+N3)/(C2+C3) is 0.37 or less, O2, N2, and C2 represent the number of O atoms, the number of N atoms, and the number of C atoms, respectively, in the curable resin composition (2), and O3, N3, and C3 represent the number of O atoms, the number of N atoms, and the number of C atoms, respectively in the solvent (3).

The present invention relates to the field of luminescent crystals (LCs), and more specifically to Quantum Dots (QDs) of formula A.sup.1.sub.aM.sup.2.sub.bX.sub.c, wherein the substituents are as defined in the specification. The invention provides methods of manufacturing such luminescent crystals, particularly by dispersing suitable starting materials in the presence of a liquid and by the aid of milling balls; to compositions comprising luminescent crystals and to electronic devices, decorative coatings; and to components comprising luminescent crystals.

The present invention relates to the field of luminescent crystals (LCs), and more specifically to Quantum Dots (QDs) of formula A.sup.1.sub.aM.sup.2.sub.bX.sub.c, wherein the substituents are as defined in the specification. The invention provides methods of manufacturing such luminescent crystals, particularly by dispersing suitable starting materials in the presence of a liquid and by the aid of milling balls; to compositions comprising luminescent crystals and to electronic devices, decorative coatings; and to components comprising luminescent crystals.

Methods are described that include contacting an alkyl ammonium metal halide film with an alkyl ammonium halide, where the alkyl ammonium metal halide film includes a first halogen and a metal, the alkyl ammonium halide includes a second halogen, such that the contacting forms an alkyl ammonium metal mixed-halide film that interfaces with the alkyl ammonium metal halide film, where the alkyl ammonium metal mixed-halide film includes the first halogen, the second halogen, and the metal.

Methods are described that include contacting an alkyl ammonium metal halide film with an alkyl ammonium halide, where the alkyl ammonium metal halide film includes a first halogen and a metal, the alkyl ammonium halide includes a second halogen, such that the contacting forms an alkyl ammonium metal mixed-halide film that interfaces with the alkyl ammonium metal halide film, where the alkyl ammonium metal mixed-halide film includes the first halogen, the second halogen, and the metal.

Organic-inorganic light-absorbing materials with perovskite structure, being used in perovskite solar cells production. The objective of the invention is to provide the possibility of obtaining perovskite using precursors that are in a liquid state without the use of additional substances and reagents. The concept of the invention is based on the fact that a light-absorbing material with perovskite structure with general formula ADB.sub.3, where A stands for methylammonium MA.sup.+ (CH.sub.3NH.sub.3.sup.+), formamidinium, FA.sup.+ ((NH.sub.2).sub.2CH.sup.+), guanidinium Gua (C(NH2)3+), cesium Cs.sup.+ or a mixture thereof, B stands for Cl.sup.−, Br.sup.−, I.sup.− or a mixture thereof, while the component D represents Sn, Pb, Bi or a mixture thereof, is obtained by mixing composition AB-nB.sub.2 and a component containing D, where the component containing D is chosen from elemental Sn, Pb, Bi and/or their salts, mixtures, alloys, whereas the composition AB-nB.sub.2 is deposited onto the component D followed by subsequent removal of the excessive components, n is greater than or equal to one, the component B.sub.2 represents Cl.sub.2, Br.sub.2, I.sub.2 or a mixture thereof.

Organic-inorganic light-absorbing materials with perovskite structure, being used in perovskite solar cells production. The objective of the invention is to provide the possibility of obtaining perovskite using precursors that are in a liquid state without the use of additional substances and reagents. The concept of the invention is based on the fact that a light-absorbing material with perovskite structure with general formula ADB.sub.3, where A stands for methylammonium MA.sup.+ (CH.sub.3NH.sub.3.sup.+), formamidinium, FA.sup.+ ((NH.sub.2).sub.2CH.sup.+), guanidinium Gua (C(NH2)3+), cesium Cs.sup.+ or a mixture thereof, B stands for Cl.sup.−, Br.sup.−, I.sup.− or a mixture thereof, while the component D represents Sn, Pb, Bi or a mixture thereof, is obtained by mixing composition AB-nB.sub.2 and a component containing D, where the component containing D is chosen from elemental Sn, Pb, Bi and/or their salts, mixtures, alloys, whereas the composition AB-nB.sub.2 is deposited onto the component D followed by subsequent removal of the excessive components, n is greater than or equal to one, the component B.sub.2 represents Cl.sub.2, Br.sub.2, I.sub.2 or a mixture thereof.

Prostate-specific membrane antigen targeted high-affinity agents for endoradiotherapy of prostate cancer are disclosed.

Prostate-specific membrane antigen targeted high-affinity agents for endoradiotherapy of prostate cancer are disclosed.