Hybrid organic-inorganic chiral perovskite single crystal and synthesis method thereof

A perovskite and chiral technology, applied in the field of hybrid organic-inorganic chiral perovskite single crystal and its synthesis, can solve problems such as few researches, achieve pure target product, high stability, and less environmental pollution Effect
CN110863246AInactive Publication Date: 2020-03-06NANKAI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NANKAI UNIV
Publication Date
2020-03-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a hybrid organic-inorganic chiral perovskite single crystal and a synthesis method thereof. According to the invention, a chiral organic amine ligand is used as a raw materialto prepare a novel non-centrosymmetric hybrid organic-inorganic chiral perovskite single crystal. The preparation method comprises the following steps: dissolving a mixture of PbBr2 and chiral aminein a molar ratio of 2: 1 in HBr and N, N-dimethylformamide, stirring for 20 minutes at room temperature, gradually clarifying the solution, standing in a toluene atmosphere for several days to obtaincolorless bulk monocrystals, and drying in a drying oven to obtain the hybrid organic-inorganic chiral perovskite monocrystals. The hybrid organic-inorganic chiral perovskite single crystal synthesized by the method disclosed by the invention has relatively strong second-order nonlinear optical properties. The preparation method provided by the invention is simple and efficient, the product stability is high, the environmental pollution is small, and a foundation is laid for the development and application of the novel hybrid organic-inorganic perovskite material in the photoelectric field.
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Description

technical field

[0001] The invention belongs to the technical field of functional hybrid materials, and relates to a hybrid organic-inorganic chiral perovskite single crystal and a synthesis method thereof. Background technique

[0002] Chirality is one of the basic characteristics of nature, which refers to the phenomenon that a real object cannot overlap its mirror image. Chiral materials are widely used in the fields of chemistry, materials science, physics and life sciences. The most important of these are used to generate circular dichroism and circularly polarized light. Circularly polarized light is the core of many electronic technologies, and the circularly polarized light generated by optical excitation has potential applications in 3D display, optical information storage and solar cells. However, until now, the content of chiral materials in nature is very limited, even extremely rare. Therefore, the design and synthesis of chiral materials are of great signifi...

Claims

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