Material dissipation of graphene resonators

Ben-Shimon, Yahav; Pradhan, A.; Ya’akobovitz, Assaf

doi:10.1016/j.carbon.2023.118185

Cited by 10 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These defects (which, to some extent, were studied for other materials [20][21][22] ) have a considerable impact on the mechanics of 2D materials, especially in the case of fracture. 23,24 Also, interlayer interactions and stacking flaws dominate the mechanics of multilayered structures 25 and have not been investigated. Therefore, this work aims to experimentally uncover the mechanical properties of thin ReS 2 and ReSe 2 via indentation tests, as these examinations have successfully revealed important elastic properties of a wide range of 2D materials, including graphene, [26][27][28] TMDs, [29][30][31] black phosphorous, 32,33 and more.…”

Section: Introductionmentioning

confidence: 99%

Exceptionally large fracture strength and stretchability of 2D ReS₂ and ReSe₂

Alboteanu,

Ya'akobovitz

2024

Nanoscale

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Exceptionally large fracture strength and stretchability of 2D ReS₂ and ReSe₂

Alboteanu,

Ya'akobovitz

2024

Nanoscale

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, currently, the quality factor of graphene resonators at room temperature is generally low [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Therefore, enhancing the quality factor of graphene resonators has become an urgent research issue.…”

Section: Introductionmentioning

confidence: 99%

Research on Fabrication of Phononic Crystal Soft-Supported Graphene Resonator

Zheng,

Liu,

Zhen

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

In aviation, aerospace, and other fields, nanomechanical resonators could offer excellent sensing performance. Among these, graphene resonators, as a new sensitive unit, are expected to offer very high mass and force sensitivity due to their extremely thin thickness. However, at present, the quality factor of graphene resonators at room temperature is generally low, which limits the performance improvement and further application of graphene resonators. Enhancing the quality factor of graphene resonators has emerged as a pressing research concern. In a previous study, we have proposed a new mechanism to reduce the energy dissipation of graphene resonators by utilizing phononic crystal soft-supported structures. We verified its feasibility through theoretical analysis and simulations. This article focuses on the fabrication of a phononic crystal soft-supported graphene resonator. In order to address the issues of easy fracture, deformation, and low success rate in the fabrication of phononic crystal soft-supported graphene resonators, we have studied key processes for graphene suspension release and focused ion beam etching. Through parameter optimization, finally, we have obtained phononic crystal soft-supported graphene resonators with varying cycles and pore sizes. Finally, we designed an optical excitation and detection platform based on Fabry–Pérot interference principle and explored the impact of laser power and spot size on phononic crystal soft-supported graphene resonators.

show abstract

“…34,55 Previous studies showed that the principal deformation mechanism in densely packed layered nanostructures is related to the relative slipping of the layers. 56,57 Therefore, the elastic properties of multilayered nanostructures are strongly influenced by interlayer interactions; namely, materials with strong interlayer forces will present higher stiffness than those with weak interlayer forces since the former materials are able to efficiently transfer shear stress between the layers. Indeed, previous studies have shown that the strength of complex 3D structures is dominated mostly by interlayer interactions, while the elasticity of each layer has a smaller impact on the mechanics of the structure.…”

Section: ■ Introductionmentioning

confidence: 99%

Multiscale Elasticity of 3D Boron Carbonitride Foam for Tunable Mechanical Resisting Devices

Jahn,

Levavi,

Pradhan

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

Boron carbonitride (BCN) foam is a three-dimensional material with a hierarchical structure, which has promising potential due to its semiconducting properties and high surface area. However, the lack of understanding of its elastic properties impedes its large-scale integration into advanced applications. We grew BCN foam samples with different atomic compositions and studied their microscopic- and macroscopic-scale mechanics, which revealed that samples with high concentrations of carbon have lower elastic resistance across different scales (i.e., lower Young’s moduli). While the microscopic elasticity is dominated by interlayer interactions, the macroscopic elasticity is also strongly influenced by the buckling and fracturing of the three-dimensional structure of the BCN foam, and thus, the macroscopic Young’s moduli are lower than the microscopic ones. Our findings shed light on the mechanism that underlies the multiscale mechanics of BCN foam and pave the path toward its integration into tunable mechanical resisting devices such as flexible electronic devices and resonators.

show abstract

Material dissipation of graphene resonators

Cited by 10 publications

References 31 publications

Exceptionally large fracture strength and stretchability of 2D ReS₂ and ReSe₂

Exceptionally large fracture strength and stretchability of 2D ReS₂ and ReSe₂

Research on Fabrication of Phononic Crystal Soft-Supported Graphene Resonator

Multiscale Elasticity of 3D Boron Carbonitride Foam for Tunable Mechanical Resisting Devices

Contact Info

Product

Resources

About

Material dissipation of graphene resonators

Cited by 10 publications

References 31 publications

Exceptionally large fracture strength and stretchability of 2D ReS2 and ReSe2

Exceptionally large fracture strength and stretchability of 2D ReS2 and ReSe2

Research on Fabrication of Phononic Crystal Soft-Supported Graphene Resonator

Multiscale Elasticity of 3D Boron Carbonitride Foam for Tunable Mechanical Resisting Devices

Contact Info

Product

Resources

About

Exceptionally large fracture strength and stretchability of 2D ReS₂ and ReSe₂

Exceptionally large fracture strength and stretchability of 2D ReS₂ and ReSe₂