Nanometer groove array and manufacturing method and application thereof

The fabrication of 8 nm periodic and 4 nm wide nanogroove arrays using ssDNA self-assembly technology solves the problem of instability in nanoscale fabrication in existing technologies, and realizes efficient and environmentally friendly nanogroove array manufacturing, which is applicable to semiconductor devices, nanophotonic devices, optoelectronics and nanoquantum electrodynamics.

CN121376903AActive Publication Date: 2026-01-23SHANGHAI JIAOTONG UNIV
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Patent Information

Application Number
CN202511490235.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-01-23
Estimated Expiration
2045-10-17

AI Technical Summary

Technical Problem

Existing technologies struggle to fabricate nanogroove arrays with regular morphology and consistent periods at the nanoscale, especially nanogroove arrays below 10 nm. Furthermore, existing methods suffer from high equipment costs and unstable fabrication processes.

Method used

Using single-stranded DNA (ssDNA) self-assembly technology, ssDNA bricks with specific base sequences are designed and self-assembled in solution using the complementary pairing principle to form a nanogroove array. The groove spacing is controlled to be less than 10 nm, and gradient annealing and centrifugation purification steps are used to ensure the stability and consistency of the array.

Benefits of technology

The method achieves efficient fabrication of nanogroove arrays with 8 nm period and 4 nm width, reduces assembly defects, improves array fabrication yield and structural consistency, is suitable for applications with stringent precision requirements, and is simple, environmentally friendly and efficient.

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Abstract

The invention relates to a nano groove array and a manufacturing method and application thereof, and the manufacturing method of the nano groove array comprises the following steps: taking single-stranded DNA (ssDNA) as a DNA brick, and carrying out self-assembly by adopting a complementary pairing principle of the ssDNA to obtain the nano groove array with a base and a side wall; wherein the width and the height of the nano groove array are fixed, the number of grooves is determined, and the nano groove array extends along a single direction; in the nano groove array, the width of the side wall and the width of the groove are equivalent to the diameter of two double-helix DNA (dsDNA). Compared with the prior art, the number of the grooves of the nano groove array is controllable, the width of the grooves is 4 nm, the period of the groove array is 8 nm, and the self-assembly defect can be greatly reduced.
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