88results about "Lead organic compounds" patented technology

The invention refers in a first aspect to self-supporting film comprising green luminescent crystals (1), red luminescent crystals (2), and a polymer (3). The green luminescent crystals (1) are perovskite crystals. The red luminescent crystals (2) are zincblende or wurzite, preferably zincblende, crystals. A second aspect of the invention refers to a solid polymer composition (100). A third aspect of the invention refers to a light emitting device comprising either the solid polymer composition (100) or the self-supporting film.

The present disclosure relates to a perovskite system comprising a perovskite film including perovskites having a three-dimensional heterostructure of formula ABX3 characterized by a tetragonal perovskite surface. A comprises at least one of methylammonium, formamidinium, cesium, or guanidinium. B is Pb or Sn. X comprises at least one of I, Br, or Cl. The perovskite system further comprises an interfacial capping layer including anilinium-based surface-capping ligands, the ligands being distributed at the tetragonal perovskite surface of the perovskite film and non-reactive with the perovskites, as determined by time-of-flight secondary ion mass spectrometry. Also described are methods of preparing the perovskite system, and solar cells or modules comprising the perovskite system.

The invention provides a room-temperature high-chemical-yield ultrasonic enhanced droplet microfluidic synthesis method of perovskite quantum dots. The method comprises the following steps: manufacturing a droplet microfluidic reaction chip with a two-section series double-T-shaped structure, and coupling the droplet microfluidic reaction chip with an ultrasonic vibrator to form a reaction system; the precursor solution, the ligand solution and the acetonitrile solution are injected into a droplet microfluidic reaction chip in proportion, and an ultrasonic vibrator is started to carry out ultrasonic enhancement on the reaction solution. And centrifugally drying the product to obtain the perovskite quantum dots. Compared with the prior art, the method has the following beneficial effects: 1, mass transfer between two phases is accelerated through ultrasonic treatment, the reaction process is enhanced, and the chemical yield and efficiency of the quantum dots are improved; 2, the size of the quantum dots can be regulated and controlled by adjusting the flow rate ratio and the ultrasonic power; 3, the specific surface area of reactants can be increased by utilizing the constructed reaction system, and the reaction conditions can be accurately controlled; and 4, the reaction system is high in automation compatibility degree and suitable for distributed continuous production.

The present application provides a large-area perovskite layer and a preparation method thereof. The preparation method includes: dissolving raw materials of a perovskite in an ionic liquid or in a mixture of the ionic liquid and an organic solvent, thereby forming a perovskite precursor, and coating the perovskite precursor onto a surface of a crystalline silicon bottom cell, thereby forming the perovskite layer. In the present application, the raw materials of the perovskite are dissolved in the ionic liquid or in the mixture of the ionic liquid and the organic solvent to form the perovskite precursor, reducing an influence of ambient moisture and oxygen on the perovskite precursor, allowing for the preparation of the perovskite layer in an air atmosphere, and further in combination with the coating method, allowing for the preparation of the large-area perovskite layer, which is suitable for an industrial production.

Disclosed herein are compounds that target carbonic anhydrase 9 (CA IX) (such as compounds of structural formula (I) or (II) wherein values for variables are as described herein) and methods for the prevention and / or treatment of certain cancers, including solid tumors, using such compounds. Also disclosed herein are pharmaceutically acceptable salts of such compounds and pharmaceutical compositions comprising such compounds or salts for use in such methods of preventing or treating cancers.

A solar cell 10 according to the present disclosure comprises a first electrode 2, a photoelectric conversion layer 4, a hole transport layer 5, and a second electrode 6. The photoelectric conversion layer 4 contains a perovskite compound. The hole transport layer 5 includes a supporting salt material and a supporting salt dispersion material. In the solar cell 10, a value obtained by dividing a substance amount of the supporting salt dispersion material by a substance amount of the supporting salt material is greater than 0 and equal to or less than 0.4.

The present invention relates to the field of radioactive drugs, specifically to radionuclide-labeled boron-containing drugs and their preparation methods. The boron-containing drugs are obtained by labeling them with at least one radionuclide, and the boron-containing drugs are obtained by polymerization of dopamine and its derivatives with boron-containing compounds. The radionuclide-labeled boron-containing drugs of the present invention have tumor-targeting properties. A method for labeling a radionuclide to a boron-containing drug via complexation or covalent bonding is also provided.

The invention discloses a quantum dot precursor, a preparation method thereof and a quantum dot, and relates to the field of quantum dots. The structural formula of the quantum dot precursor is as shown in a formula (I): # imgabs0 #. The quantum dot precursor provided by the invention is high in stability.

The present invention provides a thin film comprising a perovskite halide represented by chemical formula 1.AB(BrxCly)3   [Chemical formula 1]wherein, A is a monovalent cation consisting of a combination of NH2CHNH2+ (formamidinium, FA), CH3NH3+ (methyl ammonium, MA) and Cs+, wherein FA is included in an amount of 0.2-0.8 moles with respect to 1 mole of the monovalent cation, B is at least one divalent cation selected from Pb2+, Sn2+, Ge2+, Ti2+, Zr2+, Mn2+, Ni2+, Fe2+, Zn2+and Cu2+, and x and y satisfy 0.5≤x≤0.8, 0.2≤y≤0.5, and x+y=1.

Photoactive materials comprising organic-inorganic hybrid halide perovskite compounds are provided. Photovoltaic cells and light-emitting devices incorporating the photoactive materials into their light-absorbing and light-emitting layers, respectively, are also provided. The halide perovskites have an amAMX3 perovskite crystal structure, wherein am is an alkyl diamine cation, an aromatic diamine cation, an aromatic azole cation, a cyclic alkyl diamine cation or a hydrazinediium cation; A is a monovalent alkylammonium cation or an alkali metal cation; X is a halide ion or a combination of halide ions; and M is an octahedrally coordinated bivalent metal atom.

The present disclosure relates to a low-dimensional perovskite single crystal, a low-dimensional / three-dimensional perovskite film, a perovskite solar cell and a preparation method, the low-dimensional perovskite single crystal is synthesized by using an organic spacer molecule benzimidazole or a derivative thereof, thereby widening the variety range of low-dimensional perovskite; meanwhile, the low-dimensional perovskite single crystal is applied to three-dimensional perovskite material, the three-dimensional perovskite material is modified, a low-dimensional / three-dimensional perovskite film with higher crystallinity and stronger hydrophobicity is prepared, the low-dimensional / three-dimensional perovskite film is used as a light-absorbing layer of a perovskite solar cell, and finally the purpose of improving the energy conversion efficiency of the perovskite solar cell is achieved.

The invention provides a quasi-two-dimensional perovskite material, a perovskite solar cell and a preparation process. The structural general formula of the quasi-two-dimensional perovskite material is L2BX4, the L2BX4 is obtained through reaction of LX and BX2, X-site ions in the LX and the BX2 are halide ions, and B-site ions in the BX2 are divalent cations; the structural general formula of the LX is the general formulas I-IV provided by the invention; the quasi-two-dimensional perovskite material provided by the invention has relatively high stability and excellent photoelectric property, so that the perovskite solar cell prepared from the quasi-two-dimensional perovskite material shows relatively high stability and excellent photoelectric property.

The present invention relates to compounds of general formula (I) for use as complexing agents. The invention further relates to the coordination compounds thereof, peptide conjugates, method of their preparation and use thereof.

A light-emitting layer for a halide perovskite light-emitting device, a method for manufacturing the same and a perovskite light-emitting device using the same are disclosed. The light-emitting layer can be manufactured by forming a first nanoparticle thin film by coating, on a member, a solution comprising halide perovskite nanoparticles having a halide perovskite nanocrystalline structure. Thereby, a nanoparticle light emitter has therein a halide perovskite having a crystal structure in which FCC and BCC are combined; and can show high color purity. In addition, it is possible to improve the luminescence efficiency and luminance of a device by making perovskite as nanoparticles and then introducing the same into a light-emitting layer.

Disclosed herein are compounds that target carbonic anhydrase 9 (CA IX) (such as compounds of structural formula (I) or (II) wherein values for variables are as described herein) and methods for the prevention and / or treatment of certain cancers, including solid tumors, using such compounds. Also disclosed herein are pharmaceutically acceptable salts of such compounds and pharmaceutical compositions comprising such compounds or salts for use in such methods of preventing or treating cancers.

The invention discloses a D-J type two-dimensional perovskite LPbI4 single crystal based on organic ligands with different chain lengths as well as a preparation method and a luminescence regulation and control method of the D-J type two-dimensional perovskite LPbI4 single crystal, and belongs to the technical field of lead halogen perovskite materials. According to the preparation method, solid PbI2 and an organic ligand are subjected to a chemical reaction in an HI solution, the growth process of the two-dimensional perovskite LPbI4 single crystal is controlled by adjusting the raw material ratio, the reaction heating temperature and the annealing temperature and time, and the two-dimensional D-J type perovskite LPbI4 single crystal with n being equal to 1 is finally prepared. According to the invention, double-color emission can be generated without doping, meanwhile, pulse exciting light with different power densities or pulse frequencies can be utilized to excite, regulate and control the light-emitting color, the light-emitting color continuously changes from blue to red along with the increase of the exciting light pulse power or frequency, and the light-emitting color is reversible. The synthesis process has the characteristics of simplicity, environmental protection, small pollution and the like, the crystal quality is high, the single crystal shape is more regular, and the luminescence color regulation and control method is simple and convenient.

The present invention provides quantum dot (QD)-in-matrix materials for use in blue light emitting diodes, wherein the QD-in-matrix material comprises a plurality of quantum dots embedded in a doped lead perovskite matrix.

The invention provides a lead halide perovskite seed crystal and a preparation method thereof, and a lead halide perovskite microcrystal and a preparation method thereof. The preparation method of the lead halide perovskite seed crystal comprises the following steps: mixing a pseudo-halogen additive, first AX, first BX2 and a first solvent to form first sol, and heating the first sol to separate out crystals to obtain the lead halide perovskite seed crystal. The microcrystal is prepared by using the seed crystal as a raw material through slow heating crystallization. According to the method provided by the invention, the crystallization quality can be improved while the crystallization speed is increased.

The invention discloses a lead complex, a precursor solution for preparing perovskite, a perovskite layer, a perovskite solar cell, and a preparation method and application of the perovskite solar cell. The structural general formula of the lead complex is PbI2.0. 5La, La is a ligand, the structure of the ligand La is as follows: # imgabs0 #, R is selected from-(CH2) n-, and n is 1-8. The invention provides a novel lead complex (1D PbI2.0. 5La) aiming at the factors of more microscopic holes, uneven film, poor stability and the like of CsPbI3 perovskite, and the CsPbI3 film is prepared by introducing the 1D PbI2.0. 5La into a precursor solution for preparing the perovskite. Due to the introduction of the 1D structure, the photoelectric property of the device is improved, the surface defects are passivated, the recombination of current carriers is reduced, the stability of the device is improved, and a guiding effect on the industrialization of the CsPbI3-based perovskite solar cell is achieved.

The present application relates to a metal organic framework (MOF) glass composite comprising metal halide perovskite, and a method for its preparation.

A method of preparing a reprocessed perovskite compound, a reprocessed perovskite compound prepared thereby, and a perovskite device and a solar cell including the same. The preparation method can reduce the manufacturing cost of products in which a perovskite device is used by restoring a degraded perovskite compound, and can minimize environmental pollution associated with disposal of perovskite compounds containing heavy metals. Furthermore, high-quality perovskite devices and solar cells can be provided by using the reprocessed perovskite compound prepared by the preparation method.

The invention relates to a perovskite precursor solution, a perovskite thin film, a perovskite battery, and a power consumption device. The perovskite precursor solution contains a surfactant, the structure of which comprises a hydrophilic group, a hydrophobic group, and a first functional group, the first functional group being a Lewis base containing a lone pair of electrons, and the lone pair of electrons being located on at least one of the N atom and S atom.

Phosphor compositions and associated systems, devices, and methods are disclosed herein. Exemplary phosphor compositions can comprise a chemical formula of one of M:ABX3, M:AB2X5, M:A4BX6, M:C2DX5, or M:A2CDX6, M:A8CDX12, or M:A2C2D2X10, wherein A, B, C, D, and M are cations, and X is an anion. "A" comprises lithium (Li+), sodium (Na+), potassium (K+), rubidium (Rb+), caesium (Cs+), methylammonium, formamidinium, guanidinium, or mixtures thereof, and "M" comprises yttrium (Y3+), Lanthanum (La3+), cerium (Ce3+), praseodymium (Pr3+), neodymium (Nd3+), promethium (Pm3+), samarium (Sm3+), europium (Eu3+), gadolinium (Gd3+), terbium (Tb3+), dysprosium (Dy3+), holmium (Ho3+), erbium (Er3+), thulium (Tm3+), ytterbium (Yb3+), lutetium (Lu3+), scandium (Sc3+), iron (Fe3+), aluminum (Al3+), vanadium (V2+), chromium (Cr2+), manganese (Mn2+), bismuth (Bi3+) or mixtures thereof.

The present invention relates to a hybrid material comprising a perovskite and a singlet fission compound. The hybrid material comprises layers of the perovskite in which the singlet fission compound occupies an interlayer space of the perovskite structure. The hybrid material may be useful as a semiconductor, e.g., in a photovoltaic cell. Also disclosed are processes for preparing the hybrid material and components comprising the hybrid material, such as a photovoltaic cell.

Disclosed are compounds of the formula: wherein X, L1, R, R1, Z, R2a, R2b, L2, Y, R3a, R3b, and q are as described herein, pharmaceutically acceptable salts thereof, and methods of using these compounds and pharmaceutically acceptable salts thereof for treating patients for cancer.

The present invention provides a thin film comprising a perovskite halide represented by chemical formula 1.         [Chemical formula 1]     AB(BrxCly)3 wherein, A is a monovalent cation consisting of a combination of NH2CHNH2+ (formamidinium, FA), CH3NH3+ (methyl ammonium, MA) and Cs+, wherein FA is included in an amount of 0.2 - 0.8 moles with respect to 1 mole of the monovalent cation, B is at least one divalent cation selected from Pb2+, Sn2+, Ge2+, Ti2+, Zr2+, Mn2+, Ni2+, Fe2+, Zn2+ and Cu2+, and x and y satisfy 0.5≤x≤0.8, 0.2≤y≤0.5, and x+y=1.

The present invention provides cyclic tetrapeptides consisting of alternating α- and β-amino acids and metal complexes thereof. The cyclic tetrapeptides are particularly useful for coordinating metals selected from Pb, Cd, Hg and As. The present invention further encompasses the use of the cyclic tetrapeptides in treating diseases, particularly metal poisoning, and in the remediation of contaminated water and soil. Methods for detecting the above metals in various substrates are also provided.