Shenzhen Advanced Institute successfully prepared perovskite/black phosphorus low-dimensional composite nanomaterials

Shenzhen Advanced Institute successfully prepared perovskite/black phosphorus low-dimensional composite nanomaterials

In-situ growth of perovskite nanocrystalline particles on a two-dimensional black phosphorus surface

Recently, researcher Yu Xuefeng of the Institute of Advanced Technology of the Chinese Academy of Sciences in Shenzhen and collaborator Li Jia have made new advances in the research field of perovskite/black phosphorus composite nanomaterials and successfully grown in situ on black phosphor nanosheets through a simple liquid phase preparation process. All-inorganic perovskite nanocrystalline particles have been prepared into a low-dimensional heterojunction structure with zero-dimensional perovskite/two-dimensional black phosphorus, exhibiting excellent photoelectric application potential. Related results In situ growth of all-inorganic perovskite nanocrystals on black phosphorus nanosheets was published in the international journal Chemical Communications (Chemical Communications). The paper's first author is Huang Hao, an assistant researcher.

Zero-dimensional (0D) nanocrystals or quantum dots are distributed on the surface of two-dimensional (2D) materials. The composition of low-dimensional composite systems has attracted widespread attention in recent years. This structure can provide more degrees of freedom to design various quantum systems. By combining the unique advantages of zero-dimensional and two-dimensional materials, they can exert synergistic effects and provide new opportunities for the realization of high-performance optoelectronic applications. 2D black phosphorus and 0D perovskite have outstanding photoelectric characteristics, and the combination of the two will certainly provide great support for the exploration of basic principles of optoelectronics and application of high-performance optoelectronic devices, but relevant research has not yet been reported.

In this work, researchers designed and built a new 0D-2D low-dimensional composite material system. Using a simple liquid-phase preparation process, it successfully achieved the original inorganic perovskite nanocrystals directly on the black phosphor nanosheets. The growth of the material yields a high-quality, low-dimensional composite material with uniform structure, controllable morphology and excellent photoelectricity. This composite material combines the excellent electrical properties of black phosphorus with the unique optical properties of perovskite nanocrystals or quantum dot materials, providing a new material system for the realization of high performance optoelectronic devices.

The study was funded by the National Natural Science Foundation, the Guangdong Science and Technology Plan Project, and the Shenzhen Science and Technology Plan Project.

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