Single-layer CrI3 sheet prepared based on chemical vapor transport and method

A chemical vapor phase, single-layer technology, applied in chromium halide and other directions, can solve the problems of high preparation environment requirements, high experimental cost, small size, etc., and achieve the effects of easy control of reaction conditions, simple operation, and few materials.
CN114735751APending Publication Date: 2022-07-12NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2022-07-12

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Abstract

The invention discloses a single-layer CrI3 sheet prepared on the basis of chemical vapor transport and a method, belongs to the technical field of two-dimensional ferromagnetic materials, and solves the technical problems of high preparation environment requirements, high experiment cost, low efficiency, small size and the like during preparation of single-layer CrI3 at present. According to the method for preparing the single-layer CrI3 sheet based on chemical vapor transport, the Cr raw material, the crystallized iodine powder and the transport agent powder are used for preparing the single-layer CrI3 sheet with the large area through the program control temperature condition, and the method has the advantages of being few in related materials, easy to operate, high in efficiency, low in cost and capable of achieving large-scale production in the preparation process. The single-layer CrI3 sheet prepared by the method is large in area, high in purity and wide in application range.
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Description

technical field

[0001] The invention belongs to the technical field of two-dimensional ferromagnetic materials, in particular to a single-layer CrI prepared based on chemical vapor transport 3 Sheets and methods. Background technique

[0002] Ferromagnetism is a fundamental quantum property of matter, which specifically refers to the phenomenon that due to the interaction of electrons in matter, the arrangement of magnetic moments tends to be consistent, thus showing magnetization on a macroscopic level. Humans have been discovering and utilizing magnetic phenomena for thousands of years. In modern times, with the development of quantum mechanics and solid state theory, the origin of magnetism has been studied more and more deeply, such as the relationship between magnetism and dimensions. In the past, scientists theoretically predicted that two-dimensional isotropic ferromagnetism does not exist. However, in 2017, scientists in two-dimensional chromium triiodide (CrI 3 ) ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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