TY - JOUR
T1 - Observation of Interfacial Instability of an Ultrathin Water Film
AU - Tomo, Yoko
AU - Nag, Sarthak
AU - Takamatsu, Hiroshi
N1 - Funding Information:
The authors would like to thank Professor Koji Takahashi at Kyushu University for his support in the use of the TEM facility and for discussion of the results. The authors also thank Dr. Pablo Sols-Fernndez from Kyushu University for his assistance in improving the graphene transfer technique, and Dr. Masaki Kudo from Kyushu University for his assistance in the EELS analysis of water at the Ultramicroscopy Research Center at Kyushu University. We also thank Sofia Di Toro Wyetzner for editing the English text of a draft of this manuscript. This work was partially supported by the Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research (KAKENHI) (Grants No. JP19K23490, No. JP20K14668, and No. JP20J13061), and the Japan Science and Technology Core Research for Evolutional Science and Technology (CREST) (Grant No. JPMJCR18I1).
Publisher Copyright:
© 2022 authors. Published by the American Physical Society. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
PY - 2022/4/8
Y1 - 2022/4/8
N2 - We observed the instability of a few-nanometer-thick water film encapsulated inside a graphene nanoscroll using transmission electron microscopy. The film, that was left after recession of a meniscus, formed ripples along the length of the nanoscroll with a distance only 20%-44% of that predicted by the classical Plateau-Rayleigh instability theory. The results were explained by a theoretical analysis that incorporates the effect of the van der Waals interactions between the water film and the graphene layers. We derived important insights into the behavior of liquid under nanoscale confinement and in nanofluidic systems.
AB - We observed the instability of a few-nanometer-thick water film encapsulated inside a graphene nanoscroll using transmission electron microscopy. The film, that was left after recession of a meniscus, formed ripples along the length of the nanoscroll with a distance only 20%-44% of that predicted by the classical Plateau-Rayleigh instability theory. The results were explained by a theoretical analysis that incorporates the effect of the van der Waals interactions between the water film and the graphene layers. We derived important insights into the behavior of liquid under nanoscale confinement and in nanofluidic systems.
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U2 - 10.1103/PhysRevLett.128.144502
DO - 10.1103/PhysRevLett.128.144502
M3 - Article
C2 - 35476498
AN - SCOPUS:85128979568
VL - 128
SP - 144502
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 14
M1 - e144502
ER -