Totally-inorganic halide perovskite material CsPbI3 nanotube, and preparation method and application thereof

A halide perovskite and nanotube technology, applied in the direction of inorganic chemistry, chemical instruments and methods, lead compounds, etc., can solve the problems that have not been reported, and achieve the effect of uniform shape, wide source of raw materials, and rapid heating
CN107500344AActive Publication Date: 2017-12-22JIANGSU UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV OF SCI & TECH
Publication Date
2017-12-22

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Abstract

The invention discloses a totally-inorganic halide perovskite material CsPbI3 nanotube, and a preparation method and application thereof. The CsPbI3 nanotube is obtained by a CsPbI3 nanocrystal solution through a microwave reaction; and the molar ratio of Cs to Pb to I in the CsPbI3 nanotube is 1:(1-1.1):(3-3.3). According to the invention, the CsPbI3 nanotube prepared by a microwave method is a brand-new material, and through the method, the nanotube is prepared from perovskite for the first time. The totally-inorganic halide perovskite material CsPbI3 nanotube prepared by the method has fluorescent and photoelectric response, a high synthetic yield, uniform morphology, and high stability; the preparation method is simple and convenient, raw material sources are wide, the costs are low, heating is rapid by adopting the microwave method, and heating is uniform; and the CsPbI3 nanotube has a unique form, structure and electronic property, thus the CsPbI3 nanotube has huge application potentiality in fields such as photoelectrons.
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Description

technical field

[0001] The invention relates to an all-inorganic halide perovskite material, in particular to a microwave radiation method for preparing an all-inorganic halide perovskite material CsPbI 3 Nanotubes and methods of preparation and applications thereof. Background technique

[0002] In recent years, the all-inorganic halide perovskite material CsPbX 3 (X=Cl,Br,I) has been found to have excellent optical and electronic properties, and has been proven to be applicable in the field of optoelectronics, including solar cells, light-emitting diodes (LEDs), nonlinear optical properties, lasers, and photodetectors. In the field of all-inorganic halide perovskite materials, Kovalenko et al. first successfully prepared CsPbX using the "hot injection-rapid cooling method". 3 nanocrystals. These unoptimized cubic nanocrystals are reported to have ultrahigh quantum fluorescence yield (PLQY) and narrow fluorescence spectrum, and the spectral wavelength can be changed by t...

Claims

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