Reversed Liquid Metal Phase Transition-Induced Transfer and Wrinkle Formation in Two-Dimensional Materials
Two-dimensional (2D) materials have attracted significant interest for their unique structures and properties. While introducing wrinkles effectively modulates these properties, fabricating high-density wrinkles on a large scale remains challenging. Here, we develop a strategy utilizing reversed phase transitions in liquid metals to achieve a high-fidelity transfer and efficient wrinkling of 2D materials. During Ga solidification, the large-area transfer of 2D layers is accomplished via substrate adhesion. Subsequent Ga melting induces synergistic substrate shrinkage and strain redistribution in MoS2, generating wrinkles with large coverage (>22,000 μm2) and high density (∼6.3 μm–1). As an application example, wrinkled MoS2 produced via this approach serves as a surface-enhanced Raman scattering substrate, which detects Rhodamine 6G, with the limit of detection being 3 orders of magnitude lower than that of flat MoS2. This work develops a platform for designing 2D material wrinkle structures, opening avenues to tailor their functional properties.
Authors
- Yunhao Zhang (ORCID: https://orcid.org/0009-0009-3182-9296)
- Bilu Liu (ORCID: https://orcid.org/0000-0002-7274-5752)
- Liqiong He
- Jingwei Wang (ORCID: https://orcid.org/0009-0008-9175-6255)
- Shengnan Li (ORCID: https://orcid.org/0000-0003-0888-4798)
- Jiahui Zhang (ORCID: https://orcid.org/0000-0002-1495-6930)
- Huiyu Li
- Lei Yu (ORCID: https://orcid.org/0000-0002-4161-5568)
- Mingchuang Zhao
- Hong‐Zhang Wang (ORCID: https://orcid.org/0009-0000-3830-5203)
Institutions
- Shenzhen Institutes of Advanced Technology (CN)
- Double Helix (United States) (US)
- Tsinghua University (CN)
Publication Details
- Journal
- Chemistry of Materials
- Published
- 2025-08-25
- DOI
- https://doi.org/10.1021/acs.chemmater.5c01288
- Primary Topic
- Advanced Materials and Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Science and Technology Foundation of Shenzhen City
- National Natural Science Foundation of China
- Natural Science Foundation of Guangdong Province
- Department of Education of Guangdong Province
- Shenzhen Fundamental Research Program
- National Key Research and Development Program of China
- National Science Fund for Distinguished Young Scholars
- Basic and Applied Basic Research Foundation of Guangdong Province
- Tsinghua Shenzhen International Graduate School