DataVXAdvanced Materials InterfacesPaper
journal article·2022-07

Elasto‐Capillary Manipulation of Freestanding Inorganic Nanosheets: An Implication for Nano‐Manufacturing of Low‐Dimensional Structures

Minhyuk Park, Dapeng Li, Tianyu Wang, Binbin Zhou, Yang Yang Li, Deng Zou, Paddy K. L. Chan, Yong Yang

Advanced Materials Interfaces· Volume 9· Issue 20
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Source abstract

Abstract

Abstract Ultrathin inorganic nanosheets (e.g., 2D nanomaterials, thin films, etc.) have attracted tremendous research interest because of their unique properties and promising applications. However, because of their ultrathin thickness (<100 nm) and low flexural rigidity, it is difficult to manufacture low‐dimensional structures using these nanosheets. In this work, the observation of an intriguing elasto‐capillary unfolding phenomenon is first reported which occurs on a variety of freestanding inorganic nanosheets floating on a liquid surface. Through theoretical modeling and experiments, it is demonstrated that one can easily unfold, re‐roll, and transport different kinds of nanosheets by tuning the interfacial properties of the liquid. As a result, one can assemble nanosheets on the liquid surface into small structures (e.g., heterogeneous scrolls, optical resonators) and/or transfer them out of the liquid surface onto other surfaces for the manufacturing of flexible devices. The outcome of this research paves the way for nano‐manufacturing of low‐dimensional structures with ultrathin inorganic nanosheets.
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Research context

Nanomaterials

OpenAlex topics: Surface Modification and Superhydrophobicity · Advanced Sensor and Energy Harvesting Materials · Advanced Materials and Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Mechanical Engineering College of Engineering City University of Hong Kong Kowloon Tong Kowloon Hong Kong SAR China

Hong Kong Branch of National Precious Metals Material Engineering Research Centre City University of Hong Kong Kowloon Tong Kowloon Hong Kong SAR China

Center of Super‐Diamond and Advanced Films (COSDAF) City University of Hong Kong Kowloon Tong Kowloon Hong Kong SAR China

Department of Materials Science and Engineering College of Engineering City University of Hong Kong Kowloon Tong Kowloon Hong Kong SAR China

Centre for Advanced Structural Materials Greater Bay Joint Division Shenyang National Laboratory for Materials Science City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 China

Department of Mechanical Engineering Faculty of Engineering The University of Hong Kong Pokfulam Road Hong Kong SAR China

Department of Advanced Design and Systems Engineering College of Engineering City University of Hong Kong Kowloon Tong Kowloon Hong Kong SAR China

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