Size-dependent shape characteristics of 2D crystal blisters

Rao, Yifan; Kim, Eunbin; Dai, Zhaohe; He, Jinlong; Liu, Ying; Lu, Nanshu

doi:10.1016/j.jmps.2023.105286

Cited by 8 publications

(3 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, in earlier stages of relevant strain engineering studies, PMFs from graphene bubbles were formed spontaneously via directly transferring the 2D material sheet onto a target substrate [ 4 , 39 ]. During the transfer process, gas, liquid, or foreign contaminants (such as residues of organic matter used for transfer) could become trapped on the surface of either the 2D material or the substrate [ 41 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ]. After contact, these substances could become squeezed and aggregated at the interface due to the attractive van der Waals (vdW) interaction at the 2D material/substrate interface.…”

Section: A Brief Overview Of Bubbling Methodsmentioning

confidence: 99%

“…The particular advantage of such a bubbling method lies in the relatively large strain magnitude (up to 5%) that it can achieve and the well-defined strain fields [ 35 , 39 , 40 , 41 ]. Recently, significant advancements have yielded a range of techniques for generating bubbles spontaneously or under external pressure [ 4 , 39 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and Modeling of Graphene Bubbles to Obtain Strain-Induced Pseudomagnetic Fields

Yu,

Cao,

Zhu

et al. 2024

Materials

Self Cite

View full text Add to dashboard Cite

It has been both theoretically predicted and experimentally demonstrated that strain can effectively modulate the electronic states of graphene sheets through the creation of a pseudomagnetic field (PMF). Pressurizing graphene sheets into bubble-like structures has been considered a viable approach for the strain engineering of PMFs. However, the bubbling technique currently faces limitations such as long manufacturing time, low durability, and challenges in precise control over the size and shape of the pressurized bubble. Here, we propose a rapid bubbling method based on an oxygen plasma chemical reaction to achieve rapid induction of out-of-plane deflections and in-plane strains in graphene sheets. We introduce a numerical scheme capable of accurately resolving the strain field and resulting PMFs within the pressurized graphene bubbles, even in cases where the bubble shape deviates from perfect spherical symmetry. The results provide not only insights into the strain engineering of PMFs in graphene but also a platform that may facilitate the exploration of the strain-mediated electronic behaviors of a variety of other 2D materials.

show abstract

Section: A Brief Overview Of Bubbling Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Modeling of Graphene Bubbles to Obtain Strain-Induced Pseudomagnetic Fields

Yu,

Cao,

Zhu

et al. 2024

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…To introduce strain into 2DMs, numerous methods have been investigated, including transferring 2DMs onto a prefabricated nanostructured substrate, − creating strain during 2DM deposition, , trapping liquid molecules, − and bending or stretching a polymer substrate that supports 2DMs. ,− However, these existing methods induce global strain over a large region of 2DMs and lack precise spatial control, which may not meet the requirements of device system integration. Therefore, a method that enables precise control of the strain localization and magnitude in 2DMs is urgently needed.…”

mentioning

confidence: 99%

Local Nanostrain Engineering of Monolayer MoS₂ Using Atomic Force Microscopy-Based Thermomechanical Nanoindentation

Chang,

Yan,

Geng

2023

Nano Lett.

View full text Add to dashboard Cite

Strain engineering in two-dimensional materials (2DMs) has important application potential for electronic and optoelectronic devices. However, achieving precise spatial control, adjustable sizing, and permanent strain with nanoscale resolution remains challenging. Herein, a thermomechanical nanoindentation method is introduced, inspired by skin edema caused by mosquito bites, which can induce localized nanostrain and bandgap modulation in monolayer molybdenum disulfide (MoS2) transferred onto a poly(methyl methacrylate) film utilizing a heated atomic force microscopy nanotip. Via adjustment of the machining parameters, the strains of MoS2 are manipulated, achieving an average strain of ≤2.6% on the ring-shaped expansion structure. The local bandgap of MoS2 is spatially modulated using three types of nanostructures. Among them, the nanopit has the largest range of bandgap regulation, with a substantial change of 56 meV. These findings demonstrate the capability of the proposed method to create controllable and reproducible nanostrains in 2DMs.

show abstract

Toward Clean 2D Materials and Devices: Recent Progress in Transfer and Cleaning Methods

Dong,

Dai,

Liu

et al. 2023

Advanced Materials

Self Cite

View full text Add to dashboard Cite

Two‐dimensional (2D) materials have tremendous potential to revolutionize the field of electronics and photonics. Unlocking such potential, however, is hampered by the presence of contaminants that usually impede the performance of 2D materials in devices. This perspective provides an overview of recent efforts to develop clean 2D materials and devices. It begins by discussing conventional and recently developed wet and dry transfer techniques and their effectiveness in maintaining material “cleanliness”. Multi‐scale methodologies for assessing the cleanliness of 2D material surfaces and interfaces are then reviewed. Finally, recent advances in passive and active cleaning strategies are presented, including the unique self‐cleaning mechanism, thermal annealing, and mechanical treatment that rely on self‐cleaning in essence. The crucial role of interface wetting in these methods is emphasized, and it is hoped that this understanding can inspire further extension and innovation of efficient transfer and cleaning of 2D materials for practical applications.

show abstract

Size-dependent shape characteristics of 2D crystal blisters

Cited by 8 publications

References 53 publications

Preparation and Modeling of Graphene Bubbles to Obtain Strain-Induced Pseudomagnetic Fields

Preparation and Modeling of Graphene Bubbles to Obtain Strain-Induced Pseudomagnetic Fields

Local Nanostrain Engineering of Monolayer MoS₂ Using Atomic Force Microscopy-Based Thermomechanical Nanoindentation

Toward Clean 2D Materials and Devices: Recent Progress in Transfer and Cleaning Methods

Contact Info

Product

Resources

About

Size-dependent shape characteristics of 2D crystal blisters

Cited by 8 publications

References 53 publications

Preparation and Modeling of Graphene Bubbles to Obtain Strain-Induced Pseudomagnetic Fields

Preparation and Modeling of Graphene Bubbles to Obtain Strain-Induced Pseudomagnetic Fields

Local Nanostrain Engineering of Monolayer MoS2 Using Atomic Force Microscopy-Based Thermomechanical Nanoindentation

Toward Clean 2D Materials and Devices: Recent Progress in Transfer and Cleaning Methods

Contact Info

Product

Resources

About

Local Nanostrain Engineering of Monolayer MoS₂ Using Atomic Force Microscopy-Based Thermomechanical Nanoindentation