New methods and assays for multiplexed detection of analytes using phosphors that are uniform in morphology, size, and composition based on their unique optical lifetime signatures are described herein. The described assays and methods can be used for imaging or detection of multiple unique chemical or biological markers simultaneously in a single assay readout.

An active laser medium for emitting a light beam by laser effect includes an X—F2-doped crystal, wherein X is a chemical element from the alkaline-earth family and F is fluorine. The crystal is doped with trivalent ions including: a first category of optically active dopant ions, in which each dopant ion is an ion of a first rare earth; and a second category of optically inactive dopant ions, referred to as buffer ions, in which each dopant ion is an ion of a rare earth different from the first rare earth. The second category of dopant ions has at least ions of a second rare earth and ions of a third rare earth, different from one another. The invention provides an active laser medium that can be used to obtain both a desired emission spectrum shape and a high thermal conductivity.

A method of forming lead halide perovskite crystals in a solvent. The perovskite is form by solution processing of an organic and inorganic precursor in a polar protic solvent.

A method of forming lead halide perovskite crystals in a solvent. The perovskite is form by solution processing of an organic and inorganic precursor in a polar protic solvent.

Systems and methods for performing a rapid hybrid chemical vapor deposition are described herein. In an embodiment, first type of precursor materials is deposited on a substrate. The substrate is placed in a receptacle of a heating device, the heating device configured to provide heat to at least a portion of the receptacle. A second type of precursor materials is placed in the receptacle of the heating device such that the organic compound is closer to a gas source of the heating device than the substrate. A gas flow is created through the receptacle of the heating device. The heating component is used to cause of a portion of the receptacle comprising the substrate and the second type of precursor materials. During the heating process, at least a portion of the second type of precursor materials is deposited on at least a portion of the first type of precursor materials on the substrate.

Methods and devices for detecting incident radiation are provided. The methods and devices use high quality single-crystals of photoactive semiconductor compounds in combination with metal anodes and metal cathodes that provide for enhanced photodetector performance.

Methods and devices for detecting incident radiation are provided. The methods and devices use high quality single-crystals of photoactive semiconductor compounds in combination with metal anodes and metal cathodes that provide for enhanced photodetector performance.

A solid-liquid-solid phase transformation (SLSPT) approach is used for fabrication of perovskite periodic nanostructures. The pattern on a mold is replicated by perovskite through phase change of perovskite from initially solid state, then to liquid state, and finally to solid state. The LED comprising perovskite periodic nanostructure shows better performance than that with flat perovskite. Further, the perovskite periodic nanostructure from SLSPT can be applied in many optoelectronic devices, such as solar cells, light emitting diodes (LED), laser diodes, transistors, and photodetectors.

A corrosion-resistant member including: a metal base material (10); and a corrosion-resistant coating (30) formed on the surface of the base material (10). The corrosion-resistant coating (30) is a stack of a magnesium fluoride layer (31) and an aluminum fluoride layer (32) in order from the base material (10) side. The aluminum fluoride layer (32) is a stack of a first crystalline layer (32A) containing crystalline aluminum fluoride, an amorphous layer (32B) containing amorphous aluminum fluoride, and a second crystalline layer (32C) containing crystalline aluminum fluoride in order from the magnesium fluoride layer (31) side. The first crystalline layer (32A) and the second crystalline layer (32C) are layers in which diffraction spots are observed in electron beam diffraction images obtained by electron beam irradiation and the amorphous layer (32B) is a layer in which a halo pattern is observed in an electron beam diffraction image obtained by electron beam irradiation.

Method for depositing an organic or hybrid organic/inorganic perovskite layer on a substrate comprising the following steps: a) providing a substrate and an organic or hybrid organic/inorganic target, b) positioning the substrate and the target, in a close space sublimation furnace, c) depositing an organic or hybrid organic/inorganic perovskite layer on the substrate by sublimation of the target, the temperature difference between the target and the substrate being, preferably, comprised between 50° C. and 350° C., even more preferentially between 50° C. and 200° C., the thickness of the deposited organic or hybrid organic/inorganic perovskite layer being, preferably, comprised between 50 nm and 5000 μm.