An Observation Method for One-dimensional Nanomaterials

A technology of nanomaterials and carbon nanotubes, which is used in the field of observing one-dimensional nanomaterials with optical microscopes, which can solve the problems of inability to image, degraded image quality, and limitations of the morphological structure and arrangement direction of the measured nanomaterials.
CN109425591BActive Publication Date: 2021-06-25TSINGHUA UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2021-06-25

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Abstract

The invention relates to a method for observing carbon nanotubes, comprising: providing a one-dimensional nanomaterial to be measured; immersing the one-dimensional nanomaterial to be measured in a coupling liquid; providing a first incident light and a second incident light at the same time Irradiating the one-dimensional nanomaterial to be tested, the one-dimensional nanomaterial to be tested undergoes resonant Rayleigh scattering under the irradiation of the first incident light and the second incident light, and the first incident light and the second incident light The second incident light has a continuous spectrum and the incident directions are not parallel to each other; and the one-dimensional nanometer material to be measured with resonant Rayleigh scattering is observed by an optical microscope. The observation method provided by the invention can observe one-dimensional nanomaterials with any shape structure and arrangement direction, and obtain the position, shape and chirality information of the one-dimensional nanomaterials.
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Description

technical field

[0001] The invention relates to a method for observing one-dimensional nanomaterials, in particular to a method for observing one-dimensional nanomaterials with an optical microscope. Background technique

[0002] One-dimensional nanomaterials prepared by existing methods, such as carbon nanotubes, are usually mixed together with different chiralities, different diameters, and different lengths. Intermixed carbon nanotubes can be quantitatively distinguished by their own chirality. Carbon nanotubes with different chiralities exhibit different colors when resonant Rayleigh scattering occurs. Wu Wenyun et al. provided a method and device for observing the chirality of nanomaterials, using the resonant Rayleigh scattering image of carbon nanotubes to judge whether the chirality of multiple carbon nanotubes is consistent, and can further calculate the chirality of each carbon nanotube. sex index. However, the method and device have certain limitations on the m...

Claims

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