Organic Single‐Crystalline Ribbons of a Rigid “H”‐type Anthracene Derivative and High‐Performance, Short‐Channel Field‐Effect Transistors of Individual Micro/Nanometer‐Sized Ribbons Fabricated by an “Organic Ribbon Mask” Technique

Jiang, Lang; Gao, Jianhua; Wang, Erjing; Li, Hongxiang; Wang, Zhaohui; Hu, Wenping; Jiang, Lei

doi:10.1002/adma.200800341

Cited by 163 publications

(164 citation statements)

References 33 publications

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“…More than 90% of the devices showed linear and reproducible I-V curves, demonstrating the ohmic contact obtained between HGFs and Au electrodes using our device fabrication method (21,26). Fig.…”

Section: Resultsmentioning

confidence: 59%

“…The electrical properties of HGFs were measured after they were transferred onto 300 nm SiO 2 ∕Si substrates. FET devices based on HGFs were fabricated using our previous method (21,26). Briefly, 2-5-μm wide nanowires (a rigid H type anthracene derivative) (26) were deposited on individual HGFs, and then a 30 nm gold film was evaporated on the sample.…”

Section: Methodsmentioning

confidence: 99%

“…FET devices based on HGFs were fabricated using our previous method (21,26). Briefly, 2-5-μm wide nanowires (a rigid H type anthracene derivative) (26) were deposited on individual HGFs, and then a 30 nm gold film was evaporated on the sample. Finally, the nanowires were removed by a micromanipulator, and the desired electrodes were fabricated by mechanically scratching the gold film to make isolated FET devices.…”

Section: Methodsmentioning

confidence: 99%

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Uniform hexagonal graphene flakes and films grown on liquid copper surface

Geng

Guo

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

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428

413

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Unresolved problems associated with the production of graphene materials include the need for greater control over layer number, crystallinity, size, edge structure and spatial orientation, and a better understanding of the underlying mechanisms. Here we report a chemical vapor deposition approach that allows the direct synthesis of uniform single-layered, large-size (up to 10,000 μm 2 ), spatially self-aligned, and single-crystalline hexagonal graphene flakes (HGFs) and their continuous films on liquid Cu surfaces. Employing a liquid Cu surface completely eliminates the grain boundaries in solid polycrystalline Cu, resulting in a uniform nucleation distribution and low graphene nucleation density, but also enables self-assembly of HGFs into compact and ordered structures. These HGFs show an average two-dimensional resistivity of 609 AE 200 Ω and saturation current density of 0.96 AE 0.15 mA∕μm, demonstrating their good conductivity and capability for carrying high current density.atomic crystal | electronic materials G raphene has attracted considerable attention because of its extraordinary physical properties and potential electronic and spintronic applications (1-3). It is critical to find ways of precisely controlling the graphene layer number (4-6), crystallinity, size, edge structure, and even spatial orientation. The chemical vapor deposition (CVD) approach is a powerful and cost-effective technique for the production of high-quality and large-scale graphene films. In spite of the complexity of CVD procedures involving different catalysts, carbon sources, and other variables, the physical principles underlying this method are relatively simple. It is widely accepted that CVD mainly involves either surface catalytic reaction (7,8) or bulk carbon precipitation onto the surface during cooling (9, 10) for catalysts with low-carbon and high-carbon solubility, respectively. In both cases, graphene nucleation on a catalyst surface is one of the critical steps in the growth process. Various factors affect the initiation of the graphene nucleation process, including the type (11, 12) or surface microstructure of the catalyst, carbon source (13), carbon segregation from metal-carbon melts (14), processing history, and parameters in CVD growth (15)(16)(17). In general, nucleation densities on substrates such as Cu or Ni are nonuniform. This nonuniformity causes a large dispersion of both nucleus density and size distribution of graphene, representing a general problem in graphene CVD growth systems.It has been found that low-pressure CVD synthesis of graphene on Cu foil provides a good way of fabricating uniform single-layer graphene films (7). Studies have shown that the continuous films were formed by connecting randomly oriented, irregular-shaped, and micrometer-sized graphene flakes, resulting in the presence of a large amount of both low-and high-angle grain boundaries composed of pentagons and heptagons, which leads to a dramatic degradation in electronic properties compared with those of pristine graphene (7...

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Section: Resultsmentioning

confidence: 59%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Uniform hexagonal graphene flakes and films grown on liquid copper surface

Geng

Guo

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

428

413

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“…[131] In addition to CNTs, other organic or inorganic nanowires (e.g., V 2 O 5 nanowires) [132,133] can also be utilized as shadow masks. Our group developed an 'organic ribbon mask' method [134] by which single-crystalline nanometer-sized ribbons were utilized as the template to determine the channel length of OFETs. This method offered a cheap, facile, and controllable way to fabricate single-crystal devices with short conducting channels.…”

Section: Molecular Ruler and Nanostructure Template For Nanogap Electmentioning

confidence: 99%

Nanogap Electrodes

2009

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Nanogap electrodes (namely, a pair of electrodes with a nanometer gap) are fundamental building blocks for the fabrication of nanometer‐sized devices and circuits. They are also important tools for the examination of material properties at the nanometer scale, even at the molecular scale. In this review, the techniques for the fabrication of nanogap electrodes, the preparation of assembled devices based on the nanogap electrodes, and the potential application of these nanodevices for analysis of material properties are introduced. The history, the research status, and the prospects of nanogap electrodes are also discussed.

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Section: Controllable Nanoassembly Of π-Conjugated Systemsmentioning

confidence: 99%

Assembly of π‐Conjugated Nanosystems for Electronic Sensing Devices

Zhang

Wang

Cheng

et al. 2017

Adv Elect Materials

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Sensors have attracted particular attention as analytical devices because of their importance in health and security. The ability to obtain unique functions using molecular design have rapidly advanced the use of organic optoelectronic materials of π‐conjugated compounds in electronic sensing devices. A brief introduction to sensors, focusing on organic micro‐ or nanoassemblies created using state‐of‐the‐art protocols for assembly and their recent development for high‐performance electronic sensing devices, is presented.

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Organic Single‐Crystalline Ribbons of a Rigid “H”‐type Anthracene Derivative and High‐Performance, Short‐Channel Field‐Effect Transistors of Individual Micro/Nanometer‐Sized Ribbons Fabricated by an “Organic Ribbon Mask” Technique

Cited by 163 publications

References 33 publications

Uniform hexagonal graphene flakes and films grown on liquid copper surface

Uniform hexagonal graphene flakes and films grown on liquid copper surface

Nanogap Electrodes

Assembly of π‐Conjugated Nanosystems for Electronic Sensing Devices

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