Nanoblisters have received substantial attention owing to their ability to controllably modulate physical properties of two-dimensional (2D) layered materials. Herein, we demonstrated that nanoblisters formed by molybdenum disulfide (MoS2) can produce in-plane strains via out-of-plane deformation. The in-plane strains can effectively modulate frictional behaviors of MoS2. Friction force microscopy results showed that the friction was significantly increased at the edge of MoS2 nanoblisters due to the “step edge effect.” In addition, the friction measured in the central area of the MoS2 nanoblisters was found increased as the height to radius aspect ratios of MoS2 nanoblisters increased. Our atomically resolved friction images revealed that the dynamic friction tuned via nanoblisters was originated from the changes in the movement state of the tip caused by the in-plane strains. This study clarified the feasibility of nanoblisters as a simple strain engineering strategy to modulate the friction properties of 2D materials.
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11 April 2022
Research Article|
April 11 2022
Nanoscale friction of strained molybdenum disulfide induced by nanoblisters
Mingyuan Xu;
Mingyuan Xu
1
Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
, Jinan 250100, China
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Deliang Zhang;
Deliang Zhang
1
Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
, Jinan 250100, China
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Yin Wang;
Yin Wang
2
Interdisciplinary Nanoscience Center (iNANO), Aarhus University
, Aarhus C DK-8000, Denmark
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Yuge Zhang
;
Yuge Zhang
1
Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
, Jinan 250100, China
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Qiang Li
;
Qiang Li
a)
1
Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
, Jinan 250100, China
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Mingdong Dong
Mingdong Dong
a)
2
Interdisciplinary Nanoscience Center (iNANO), Aarhus University
, Aarhus C DK-8000, Denmark
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Appl. Phys. Lett. 120, 151601 (2022)
Article history
Received:
February 09 2022
Accepted:
April 01 2022
Citation
Mingyuan Xu, Deliang Zhang, Yin Wang, Yuge Zhang, Qiang Li, Mingdong Dong; Nanoscale friction of strained molybdenum disulfide induced by nanoblisters. Appl. Phys. Lett. 11 April 2022; 120 (15): 151601. https://doi.org/10.1063/5.0087756
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