Wrinkling of two-dimensional materials: methods, properties and applications

Chen, Wenjun; Gui, Xuchun; Yang, Leilei; Zhu, Hancheng; Tang, Zikang

doi:10.1039/c8nh00112j

Cited by 147 publications

(106 citation statements)

References 293 publications

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“…Scrolled structures could be observed at the edges of the ultrathin films. The nanosheets formed unavoidable wrinkles as a self-folding phenomenon to balance adhesion energy and bending strain energy, which can cause the intrinsic lattice structures to distort (Chen et al, 2019).…”

Section: Physical Characterization Of Nbs 2 Nanosheetsmentioning

confidence: 99%

Colloidal Synthesis of NbS2 Nanosheets: From Large-Area Ultrathin Nanosheets to Hierarchical Structures

Wei

Dong

et al. 2020

Front. Chem.

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Layered NbS 2 , a member of group-V transition metal dichalcogenides, was synthesized via a colloidal synthesis method and employed as a negative material for a supercapacitor. The morphologies of NbS 2 can be tuned from ultrathin nanosheets to hierarchical structures through dynamics controls based on growth mechanisms. Electrochemical energy storage measurements present that the ultrathin NbS 2 electrode exhibits the highest rate capability due to having the largest electrochemical surface area and its efficient ion diffusion. Meanwhile, the hierarchical NbS 2 shows the highest specific capacitance at low current densities for small charge transfer resistance, displays 221.4 F g −1 at 1 A g −1 and 117.1 F g −1 at 10 A g −1 , and cycling stability with 78.9% of the initial specific capacitance after 10,000 cycles. The aggregate or stacking of nanosheets can be suppressed effectively by constructing hierarchical structure NbS 2 nanosheets.

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Section: Physical Characterization Of Nbs 2 Nanosheetsmentioning

confidence: 99%

Colloidal Synthesis of NbS2 Nanosheets: From Large-Area Ultrathin Nanosheets to Hierarchical Structures

Wei

Dong

et al. 2020

Front. Chem.

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“…Revealing the mechanical properties of 2D materials is the first prerequisite for their applications in flexible and stretchable electronics. [13][14][15] Indeed, the mechanical characteristics of monolayer and few-layer 2D materials, such as metallic graphene [16][17][18][19] and transition metal carbides or/and nitrides (MXenes), [20] insulating hexagonal boron nitride, [18] and semiconducting transition metal dichalcogenides (TMDCs) [21][22][23][24] and black phosphorus (BP), [25] have been intensively studied and documented by atomic force microscopy (AFM) nanoindentation. The above-mentioned 2D materials are bonded by interlayered van der Waals force, while the relatively strong electrostatic force dominates the interaction between [Bi 2 O 2 ] 2n+ and [Se] 2n− layers in Bi 2 O 2 Se, [4,5] making the intrinsic mechanical properties of Bi 2 O 2 Se intriguing, yet unknown experimentally.…”

mentioning

confidence: 99%

High‐Fidelity Transfer of 2D Bi₂O₂Se and Its Mechanical Properties

Feng

Ding

et al. 2020

Adv Funct Materials

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2D bismuth oxyselenide (Bi 2 O 2 Se) with high electron mobility is advantageous in future high-performance and flexible electronic and optoelectronic devices. However, transfer of thin Bi 2 O 2 Se flakes is rather challenging, restricting measurements of its mechanical properties and application exploration in flexible devices. Here, a reliable and effective polydimethylsiloxane (PDMS)-mediated method that allows transferring thin Bi 2 O 2 Se flakes from grown substrates onto target substrates like microelectromechanical system substrates is developed. The high fidelity of the transferred thin flakes stems from the high adhesive energy and flexibility of PDMS film. For the first time, the mechanical properties of 2D Bi 2 O 2 Se are experimentally acquired with a nanoindentation method. It is found that few-layer Bi 2 O 2 Se exhibits a large intrinsic stiffness of 18-23 GPa among 2D semiconductors, and a Young's modulus of 88.7 ± 14.4 GPa, which is consistent with the theoretical values. Furthermore, few-layer Bi 2 O 2 Se can withstand a high radial strain of more than 3%, demonstrating excellent flexibility. The development of the reliable transfer method and documentation of mechanical properties of 2D Bi 2 O 2 Se jointly fill the gap between theoretical prediction and experimental verification of mechanical properties of this emerging material, and will promote flexible electronics and optoelectronics based on 2D Bi 2 O 2 Se.

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“…By contrast, a recent innovation for ultrathin film assembly from 2D materials exploits interfacial self-assembly based on fluid mass transfer via liquid convection and interfacial tension gradients at a liquid interface (i.e., Marangoni effect). [25] Interestingly, the surface Marangoni effect realizes a surprising defect-healing film formation behavior, in which, once surface film assembly reveals a noticeable void or defect in the assembled morphology, constituent particles spontaneously disassemble and reassemble to generate a denser and less defective film morphology. This result also manifests that transformation of planar 2D materials into mechanically tunable ultrathin planar structures is possible simply based on physical binding (Figure 3a).…”

Section: Films (2d)mentioning

confidence: 99%

“…In an ideal case, for example, 2D materials in their pristine form can be assembled on a liquid surface by heterogeneous interfacial tension (Marangoni effect). [25] However, chemical modification of 2D materials is commonly required to mediate the driving force for assembly, as in the example of 1D fiber spinning from graphene oxide liquid crystal (GOLC). [26] Herein, judicious consideration of chemical modification is critical for the realization of optimal physicochemical characteristics for target energy or environmental issue.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Assembly of 2D Materials for Energy and Environmental Applications

et al. 2020

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Rational design of 2D materials is crucial for the realization of their profound implications in energy and environmental fields. The past decade has witnessed significant developments in 2D material research, yet a number of critical challenges remain for real‐world applications. Nanoscale assembly, precise control over the orientational and positional ordering, and complex interfaces among 2D layers are essential for the continued progress of 2D materials, especially for energy storage and conversion and environmental remediation. Herein, recent progress, the status, future prospects, and challenges associated with nanoscopic assembly of 2D materials are highlighted, specifically targeting energy and environmental applications. Geometric dimensional diversity of 2D material assembly is focused on, based on novel assembly mechanisms, including 1D fibers from the colloidal liquid crystalline phase, 2D films by interfacial tension (Marangoni effect), and 3D nanoarchitecture assembly by electrochemical processes. Relevant critical advantages of 2D material assembly are highlighted for application fields, including secondary batteries, supercapacitors, catalysts, gas sensors, desalination, and water decontamination.

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Wrinkling of two-dimensional materials: methods, properties and applications

Abstract: This review addresses the formation, fabrication methods, properties and applications of wrinkled patterns in 2D materials.

Cited by 147 publications

References 293 publications

Colloidal Synthesis of NbS2 Nanosheets: From Large-Area Ultrathin Nanosheets to Hierarchical Structures

Colloidal Synthesis of NbS2 Nanosheets: From Large-Area Ultrathin Nanosheets to Hierarchical Structures

High‐Fidelity Transfer of 2D Bi₂O₂Se and Its Mechanical Properties

Nanoscale Assembly of 2D Materials for Energy and Environmental Applications

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Wrinkling of two-dimensional materials: methods, properties and applications

Abstract: This review addresses the formation, fabrication methods, properties and applications of wrinkled patterns in 2D materials.

Cited by 147 publications

References 293 publications

Colloidal Synthesis of NbS2 Nanosheets: From Large-Area Ultrathin Nanosheets to Hierarchical Structures

Colloidal Synthesis of NbS2 Nanosheets: From Large-Area Ultrathin Nanosheets to Hierarchical Structures

High‐Fidelity Transfer of 2D Bi2O2Se and Its Mechanical Properties

Nanoscale Assembly of 2D Materials for Energy and Environmental Applications

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Product

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High‐Fidelity Transfer of 2D Bi₂O₂Se and Its Mechanical Properties