Fast fabrication technique for high-quality van der Waals heterostructures using inert shielding gas environment

Kim, Minwook; Nguyen, Cao Thang; Suleman, Muhammad; Nguyen, Dinh Cong; Nasir, Naila; Park, Hyun Min; Lee, Sohee; Kim, Sung Youb; Kumar, Sunil; Seo, Yongho

doi:10.1016/j.apsusc.2023.158186

Cited by 1 publication

(4 citation statements)

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“…Nguyen et al have reported a novel dry transfer under an Ar shielding gas environment to prevent contamination of the device from bubble impurities to obtain atomically clean interfaces. 66 They demonstrated that utilizing the argon inert gas combined with appropriate temperatures, contact, and peeling speed during heterostructure assembly can readily obtain the bubble-free clean interface of the graphene/h-BN vdW heterojunction with high room temperature graphene mobility of up to 600 000 cm 2 V −1 s −1 (Figure 5b).…”

Section: Removing Residual Polymersmentioning

confidence: 99%

“…Over and above, when flakes are exposed to air during the transfer procedures, contaminants may be adsorbed at the interface, inducing the wrinkle of flakes and forming localized bubbles, so that improving the atmosphere during vdW assembly can significantly reduce the generation of air bubbles. Nguyen et al have reported a novel dry transfer under an Ar shielding gas environment to prevent contamination of the device from bubble impurities to obtain atomically clean interfaces . They demonstrated that utilizing the argon inert gas combined with appropriate temperatures, contact, and peeling speed during heterostructure assembly can readily obtain the bubble-free clean interface of the graphene/h-BN vdW heterojunction with high room temperature graphene mobility of up to 600 000 cm 2 V –1 s –1 (Figure b).…”

Section: Lbl Van Der Waals Assemblymentioning

confidence: 99%

“…(ii) Optical images of large area bubble-free graphene/graphene. (iii) Mobility of field-effect carriers for 29 graphene-encapsulated samples at room temperature . Reproduced with permission from ref .…”

Section: Lbl Van Der Waals Assemblymentioning

confidence: 99%

Section: Lbl Van Der Waals Assemblymentioning

confidence: 99%

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Layer-by-Layer Self-Assembly Strategies of Atomically Thin Two-Dimensional Nanomaterials: Principles, Methods, and Functional Applications

Cai,

Yang,

et al. 2024

ACS Appl. Nano Mater.

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Two-dimensional (2D) layered materials are an indispensable cornerstone of modern industry, which harnesses their strengths and creativity for energy, catalysis, sensors, and many other fields. Nowadays, materials science has transitioned from single-component substances to multicomponent composites, and how to efficiently construct multifunctional layered composites with controllable and stable structures has become a research hotspot. Among many available preparation techniques, the layer-by-layer (LbL) self-assembly technology is one of the most efficient strategies, which utilizes the noncovalent weak intermolecular forces to achieve stable binding of different components and thus exhibits extensive suitability compared with traditional methods. Precise molecular-level control of the structure and properties of LbL-assembled composites can be achieved through the selection of assembly units and the design of the assembly sequence. Benefiting from these merits, LbL-assembled laminated composites have been widely used in energy conversion and storage, optoelectronic and magnetic devices, drug delivery, sensors, separation membranes, and so on. In this review, we summarize the recent advances in the current mainstreams of LbL assembly technology, including the van der Waals (vdW) assembly, electrostatic assembly, Langmuir–Blodgett (LB) assembly, and hydrogen-bonded assembly. Moreover, a systematic review and perspective are provided not only on the applications of water electrolysis, lithium-ion batteries, optoelectronics, and magnetic devices but also on the existing challenges and future directions for LbL assembly.

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Section: Removing Residual Polymersmentioning

confidence: 99%

Section: Lbl Van Der Waals Assemblymentioning

confidence: 99%

Section: Lbl Van Der Waals Assemblymentioning

confidence: 99%

Section: Lbl Van Der Waals Assemblymentioning

confidence: 99%

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