Self-Assembly of Graphene Single Crystals with Uniform Size and Orientation: The First 2D Super-Ordered Structure

Zeng, Mengqi; Wang, Qianqian; Liu, Jinxin; Zhang, Tao; Xue, Haifeng; Xiao, Yao; Qin, Zhihui; Fu, Lei

doi:10.1021/jacs.6b03208

Cited by 92 publications

(120 citation statements)

References 19 publications

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“…The growth of large‐area high‐quality graphene films is fundamental for the upcoming graphene applications. Chemical vapour deposition (CVD) method offers good prospects to produce large‐size graphene films due to its simplicity, controllability and cost‐efficiency 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 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. Many researches have verified that graphene can be catalytically grown on metallic substrates, like ruthenium (Ru),13, 14 iridium (Ir),15, 16 platinum (Pt),17, 18, …”

Section: Introductionmentioning

confidence: 99%

The Way towards Ultrafast Growth of Single‐Crystal Graphene on Copper

Zhang

Qiu

et al. 2017

Advanced Science

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The exceptional properties of graphene make it a promising candidate in the development of next‐generation electronic, optoelectronic, photonic and photovoltaic devices. A holy grail in graphene research is the synthesis of large‐sized single‐crystal graphene, in which the absence of grain boundaries guarantees its excellent intrinsic properties and high performance in the devices. Nowadays, most attention has been drawn to the suppression of nucleation density by using low feeding gas during the growth process to allow only one nucleus to grow with enough space. However, because the nucleation is a random event and new nuclei are likely to form in the very long growth process, it is difficult to achieve industrial‐level wafer‐scale or beyond (e.g. 30 cm in diameter) single‐crystal graphene. Another possible way to obtain large single‐crystal graphene is to realize ultrafast growth, where once a nucleus forms, it grows up so quickly before new nuclei form. Therefore ultrafast growth provides a new direction for the synthesis of large single‐crystal graphene, and is also of great significance to realize large‐scale production of graphene films (fast growth is more time‐efficient and cost‐effective), which is likely to accelerate various graphene applications in industry.

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Section: Introductionmentioning

confidence: 99%

The Way towards Ultrafast Growth of Single‐Crystal Graphene on Copper

Zhang

Qiu

et al. 2017

Advanced Science

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“…First, organic molecules can prompt doping effects in 2D materials16171819, causing local modifications of their surface potential202122. Second, these molecules form ordered 2D crystalline structures when physisorbed on graphene and other 2D materials23242526272829303132333435. Given the immense opportunities offered by hybrid organic–inorganic vdW heterostructures in modifying the fundamental electronic properties of the pristine materials, the field is still widely unexplored3.…”

mentioning

confidence: 99%

Periodic potentials in hybrid van der Waals heterostructures formed by supramolecular lattices on graphene

et al. 2017

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The rise of 2D materials made it possible to form heterostructures held together by weak interplanar van der Waals interactions. Within such van der Waals heterostructures, the occurrence of 2D periodic potentials significantly modifies the electronic structure of single sheets within the stack, therefore modulating the material properties. However, these periodic potentials are determined by the mechanical alignment of adjacent 2D materials, which is cumbersome and time-consuming. Here we show that programmable 1D periodic potentials extending over areas exceeding 104 nm2 and stable at ambient conditions arise when graphene is covered by a self-assembled supramolecular lattice. The amplitude and sign of the potential can be modified without altering its periodicity by employing photoreactive molecules or their reaction products. In this regard, the supramolecular lattice/graphene bilayer represents the hybrid analogue of fully inorganic van der Waals heterostructures, highlighting the rich prospects that molecular design offers to create ad hoc materials.

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“…Such a simple yet efficient strategy inherits the merit of the conventional self‐assembly approach. A back‐gated FET array constructed using GSOS exhibited the device mobility of 3882 ± 896 cm 2 V −1 s −1 , which signifies high quality of the resulted GSOS 158. Halik and co‐workers assembled oxofunctionalized graphene/polymer hybrid films for memory devices, which can be operated at a low voltage of 3 V. It was found that the coating layer of ≈5 nm is mandatory to afford the relative low operation voltage of the device 159.…”

Section: Applications Of Self‐assembled Graphene‐based Architecturesmentioning

confidence: 99%

Self‐Assembled Graphene‐Based Architectures and Their Applications

Yuan

Xiao

et al. 2017

Advanced Science

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Due to unique planar structures and remarkable thermal, electronic, and mechanical properties, chemically modified graphenes (CMGs) such as graphene oxides, reduced graphene oxides, and the related derivatives are recognized as the attractive building blocks for “bottom‐up” nanotechnology, while self‐assembly of CMGs has emerged as one of the most promising approaches to construct advanced functional materials/systems based on graphene. By virtue of a variety of noncovalent forces like hydrogen bonding, van der Waals interaction, metal‐to‐ligand bonds, electrostatic attraction, hydrophobic–hydrophilic interactions, and π–π interactions, the CMGs bearing various functional groups are highly desirable for the assemblies with themselves and a variety of organic and/or inorganic species which can yield various hierarchical nanostructures and macroscopic composites endowed with unique structures, properties, and functions for widespread technological applications such as electronics, optoelectronics, electrocatalysis/photocatalysis, environment, and energy storage and conversion. In this review, significant recent advances concerning the self‐assembly of CMGs are summarized, and the broad applications of self‐assembled graphene‐based materials as well as some future opportunities and challenges in this vibrant area are elucidated.

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Self-Assembly of Graphene Single Crystals with Uniform Size and Orientation: The First 2D Super-Ordered Structure

Cited by 92 publications

References 19 publications

The Way towards Ultrafast Growth of Single‐Crystal Graphene on Copper

The Way towards Ultrafast Growth of Single‐Crystal Graphene on Copper

Periodic potentials in hybrid van der Waals heterostructures formed by supramolecular lattices on graphene

Self‐Assembled Graphene‐Based Architectures and Their Applications

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