Systems and methods for disassembling two-dimensional van der Waals crystals into macroscopic monolayers and reassembling into artificial lattices

US11866847B2 · kind B2 · utility

Assignee

• The Trustees of Columbia University in the City of New York · US

Inventors

• Fang Liu · Lo Wu, CN
• Xiaoyang Zhu · New York, US
• James Hone · New York, US
• Sang Hoon Chae · Suwon-si, KR

Key dates

• Filing date: Nov 25, 2020
• Grant date: Jan 9, 2024
• Expiry date: Sep 11, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/24
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Systems and methods for generating one or more single crystal monolayers from two-dimensional van der Waals crystals are disclosed herein. Example methods include providing a bulk material including a plurality of van der Waals crystal layers, and exfoliating one or more single crystal monolayers of van der Waals crystal from the bulk material by applying a flexible and flat metal tape to a surface of the bulk material. In certain embodiments, the one or more single crystal monolayers can be assembled into an artificial lattice. The present disclosure also provides techniques for manufacturing flexible and flat metal tape for generating one or more single crystal monolayers from two-dimensional van der Waals crystals. The present disclosure also provides compositions for creating a macroscopic artificial lattice. In certain embodiments, the composition can include two or more macroscopic single crystal monolayers adapted from a bulk van der Waals crystal, where the single crystal monolayers are configured for assembly into an artificial lattice based on one or more properties.