Laser ablation apparatus and method of ablating a layered material

By combining a laser ablation device with multi-field coupling, efficient and high-quality ablation of layered materials has been achieved, solving the problem of difficult ablation of multi-layered materials in existing technologies and promoting its application in industrial and aerospace fields.

CN116871690BActive Publication Date: 2026-06-26BEIJING INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF TECH
Filing Date
2023-06-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies are unable to efficiently and effectively exfoliate multilayer materials such as layered bimetallic hydroxides (LDH), transition metal sulfides (TMD), and black phosphorus, which limits their application in industries, electrocatalysis, and aerospace.

Method used

A laser ablation device is used, which combines the multi-field coupling effect of light field, microwave field, magnetic field and vibration field. Through the synergistic effect of the first and second laser beams, supplemented by microwave, magnetic field and ultrasonic vibration, the efficient ablation of multi-layer materials is achieved. A detection device is used for real-time monitoring and feedback to optimize the ablation effect.

Benefits of technology

This technology enables efficient and high-quality exfoliation of multilayer materials, forming nanosheets with uniform and controllable thickness. It improves the material's performance and yield, solves the problem of exfoliating multilayer materials, and promotes its application in industries such as industry and aerospace.

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Abstract

The application discloses a laser stripping device and a method for stripping layered materials, and belongs to the technical field of laser processing. The application comprises a laser stripping system, a container, a displacement device, a microwave device, a magnetic field device, a sample, an ultrasonic vibration device and a control system. The application reduces the interlayer force through the mutual coupling effect of two lasers and the heating effect; the stripping effect of the multi-layer material is improved through the secondary stripping and the auxiliary effect of generating more plasma. In the process of stripping the multi-layer material, the microwave is introduced to weaken the interlayer force, so that the single layer is better separated, and the nanosheet with uniform thickness and controllable thickness is formed. The plasma is controlled by introducing the magnetic field, the secondary stripping and large-size growth of the multi-layer material are realized, the interlayer micro-vibration and the movement of the bubbles are generated by introducing the vibration field to assist the material stripping, the stripping process of the multi-layer material is monitored in real time by the detection device and is fed back to the device for adjustment, and the efficient and high-quality stripping of the multi-layer material is realized.
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