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Wallpapering-inspired spreading and wrinkling of atomically-thin materials

Title
Wallpapering-inspired spreading and wrinkling of atomically-thin materials
Author
장재일
Keywords
Graphene; Graphene wrinkle; Wrinkled graphene; Wrinkled membrane; Wrinkle-free graphene; Surface corrugation
Issue Date
2020-03
Publisher
ELSEVIER
Citation
APPLIED SURFACE SCIENCE, v. 507, article no. 145184
Abstract
We propose a novel wallpapering-inspired strategy to create wrinkles in a desired location and direction of single-layer graphene (Gr). The key to controlling the wrinkles is to regulate the permeation and release of solution through a regular array of holes between the substrate surface and Gr-based thin membrane (Gr/Cu in the first stage and Gr in the second stage). Microscopic analysis showed that neighboring holes were interconnected by straightened wrinkles with a width of 300-500 nm and height of 10-20 nm, while surface corrugations (e.g., ripples and wrinkles) were suppressed on the planar regions surrounded by wrinkles. Wrinkling mechanism was further verified by in-situ optical microscopy and comparative analysis of Gr/Cu ripples and Gr wrinkles. Our approach is simple yet universally applicable to diverse types of thin membranes, thereby offering a robust and versatile route to engineering properties of atomically thin materials.
URI
https://www.sciencedirect.com/science/article/pii/S0169433219340012?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/162007
ISSN
0169-4332; 1873-5584
DOI
10.1016/j.apsusc.2019.145184
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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