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Updated: May 1, 2026
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
Published on: July 5, 2019
Quick, large-area assembly of a single-crystal monolayer of spherical particles by unidirectional rubbing
ChooJin Park1, Taeil Lee, Younan Xia
1Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Republic of Korea.
Abstract:
Rubbing a dry powder of particles in one direction between two rubbery substrates is found to be a quick and highly reproducible, yet inexpensive fabrication technique for assembling particle monolayers with perfect spatial registry on flat or curved surfaces. The optimum rubbing conditions - pressure and speed - for a single-crystal monolayer are shown to depend on particle size. Potential applications are in biosensors, photovoltaics, and light manipulators.
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