Florida State University Research Foundation, Inc.

Biwu Ma

Zhao Yuan

Yu Tian

Chenkun Zhou

Hanwei Gao

Yichuan Ling

Qingquan He

Haoran Lin

Xi Wang

Liang-Jin Xu

Bulk assemblies are provided, which may have desirable photoluminescence quantum efficiencies. The bulk assemblies may include two or more metal halides, and a wide band gap organic network. The wide band gap organic network may include organic cations. The metal halides may be disposed in the wide band gap organic network. Light emitting composite materials also are provided.

Organic-inorganic hybrid bulk assemblies and methods

Methods of scintillation, scintillation devices, and metal halide hybrids that may be used as X-ray scintillators. The metal halide hybrids may include organic metal halide hybrids, inorganic metal halide hybrids, or organic-inorganic metal halide hybrids. The metal halide hybrids may have a 0D structure. The metal halide hybrids may be in the form of one or more discrete crystals.

X-ray scintillators, metal halide hybrids, devices, and methods

Metal halide perovskite crystals, composite materials that include metal halide perovskite crystals and a polymeric matrix material, devices that include metal halide perovskite crystals, and methods of forming metal halide perovskite crystals, composite materials, and devices. The devices may include optoelectronic devices, such as light-emitting diodes. The light-emitting diodes may emit red light.

Metal halide perovskites, light-emitting diodes, and methods

Methods of passivating surfaces, composite materials, and electronic devices including the composite materials. The composite materials can include a passivated film, such as a metal halide perovskite passivated with an organic dye. The electronic devices may include solar cells.

Coatings for electronic devices, solar cells, composite materials, and methods

Provided herein are organic-inorganic hybrid-perovskites, including metal halide perovskites having a 1D crystal structure. The metal halide perovskites may be luminescent. The metal halide perovskites may include a dopant, including an emitter dopant. Methods of forming metal halide perovskites, and devices including the metal halide perovskites also are provided.

Organic-inorganic hybrid perovskites, devices, and methods

Methods of passivating a surface. The methods may include providing a mixture including a liquid and a derivative of quinacridone, applying the mixture to a first surface of a film that includes a metal halide perovskite, and annealing the film for a time and a temperature effective to convert the derivative of quinacridone to quinacridone. Composite materials and electronic devices also are provided.

Organic pigment coating for electronic devices, perovskite solar cells, and methods

A new type of charge transport layer based on organometal halide perovskite for highly efficient organic light emitting diodes (OLEDs) is demonstrated. By solution processing of halide perovskite precursors, smooth essentially pure perovskite thin films may be prepared with high transparency and conductivity. Solution processed multilayer OLED with this perovskite-based hole transport layer outperforms a device with a PEDOT:PSS layer.

Perovskite based charge transport layers for thin film optoelectronic devices and methods of making

Nanoscale metal halide perovskites are provided. The nanoscale metal halide perovskites may have a 2D structure, a quasi-2D structure, or a 3D structure. Methods also are provided for making the nanoscale metal halide perovskites. The color emitted by the nanoscale metal halide perovskites may be tuned.

Luminescent metal halide perovskites and methods

Methods of making metal halide perovskites, including methods of making micro crystals of metal halide perovskites. The metal halide perovskites, including the micro crystals, may have a 0D structure. The metal halide perovskites may be a light emitting material.

Methods of making metal halide perovskites

Bandgap-tunable perovskite compositions are provided having the formula CsPb(AB), wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula CsPb(AB), wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided.

Methods of making bandgap-tunable perovskite materials

Bandgap-tunable perovskite compositions are provided having the formula CsPb(A)B), wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula CsPb(A)B), wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided.

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Tallahassee, FL, United States of America

Biwu Ma