Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 14, Issue 3, Pages 4783-4790Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c23349
Keywords
nanodroplet; wettability; adhesion; transfer printing; molecular dynamics
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This paper presents a reversible transfer printing technique that tailors adhesion by selectively stretching surfaces. Through molecular dynamics simulations, the researchers demonstrate the transfer of nanoscale substances between two graphene surfaces with strains switched on and off, and reveal the mechanisms behind the dynamic behaviors during the transfer process.
Transfer printing has been playing a crucial role in the fabrication of various functional devices. In spite of the extensive progress in technology, challenges are remaining, in the aspects of accuracy, efficiency, and adaptivity. Here, we propose a reversible transfer printing technique of tailoring adhesion by selectively stretching the surfaces. Through molecular dynamics simulations, we demonstrate the transfer of nanoscale substances such as water droplets, colloids, and nanoparticles between two graphene surfaces with strains switched on and off. We reveal the mechanism of the dynamic behaviors by analyzing the energies and driving forces of the substances during the process of transfer. The work not only advances the fundamental understanding of adhesion but also can inspire applications in the design of next-generation electronic and biomedical devices.
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