Buckyball sandwiches

Mirzayev, Rasim; Mustonen, Kimmo; Monazam, Mohammad Reza Ahmadpour; Mittelberger, Andreas; Pennycook, Timothy J.; Mangler, Clemens; Susi, Toma; Kotakoski, Jani; Meyer, Jannik C.

doi:10.1126/sciadv.1700176

Cited by 64 publications

(67 citation statements)

References 49 publications

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“…The image of C 60 grown on graphene at Δ n CT = 0 clearly showed an ordered hexagonal arrangement of C 60 molecules over a few tens of nanometers, which is the fashion of the (111) plane of a highly crystalline fcc structure ( Figure a, top). Moreover, the ordering in this HR‐TEM image matches that of ABA‐stacked C 60 layers 24. This stacking order was uniform over the analyzed areas; this consistent order implies that C 60 layers were preferentially stacked on each other in an ABA manner when the thin film was grown on graphene at Δ n CT = 0.…”

Section: Resultssupporting

confidence: 64%

Charge‐Transfer‐Controlled Growth of Organic Semiconductor Crystals on Graphene

et al. 2020

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Controlling the growth behavior of organic semiconductors (OSCs) is essential because it determines their optoelectronic properties. In order to accomplish this, graphene templates with electronic‐state tunability are used to affect the growth of OSCs by controlling the van der Waals interaction between OSC ad‐molecules and graphene. However, in many graphene‐molecule systems, the charge transfer between an ad‐molecule and a graphene template causes another important interaction. This charge‐transfer‐induced interaction is never considered in the growth scheme of OSCs. Here, the effects of charge transfer on the formation of graphene–OSC heterostructures are investigated, using fullerene (C60) as a model compound. By in situ electrical doping of a graphene template to suppress the charge transfer between C60 ad‐molecules and graphene, the layer‐by‐layer growth of a C60 film on graphene can be achieved. Under this condition, the graphene–C60 interface is free of Fermi‐level pinning; thus, barristors fabricated on the graphene–C60 interface show a nearly ideal Schottky–Mott limit with efficient modulation of the charge‐injection barrier. Moreover, the optimized C60 film exhibits a high field‐effect electron mobility of 2.5 cm2 V−1 s−1. These results provide an efficient route to engineering highly efficient optoelectronic graphene–OSC hybrid material applications.

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Section: Resultssupporting

confidence: 64%

Charge‐Transfer‐Controlled Growth of Organic Semiconductor Crystals on Graphene

et al. 2020

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“…[20] The fullerene monolayers in the sandwich architecture exhibited a lattice spacing of 9.6 Å, which was ≈5% smaller than the bulk spacing. [20] Bilayer films comprised of graphene and fullerene derivatives have also been studied. Furthermore, the graphene sandwich can play the role of a nanoscale reaction chamber, providing a clean interface to the microscope vacuum and affording some suppression of radiation damage.…”

Section: Fullerene Graphenementioning

confidence: 94%

“…Bilayer films Pristine Pristine a) Thermal evaporation deposition Excited-state charge transfer [73] Pristine Pristine Thermal evaporation deposition Graphene Moiré pattern [23] Pristine Pristine chemical vapor deposition Negative photoconductivity [26] Pristine Pristine Spray coating FET/p-type behavior [74] Pristine Pristine Thermal evaporation deposition FET/On/off ratio: 3 × 10 3 [25] Pristine Pristine Thermal evaporation deposition Strain lattice imprinting [24] Pristine Pristine Thermal evaporation deposition - [20] Pristine Pristine -Single-molecule junctions [22] Derivative Pristine Thermal evaporation deposition Single-molecule junctions [75] Derivative Pristine Immersed method Single-molecule junctions [76] Derivative Pristine Immersed method Single-molecule junctions [77] Physical blends Pristine Pristine Acid treatment Lithium ion batteries/capacity: 784 mAh g −1 [78] Pristine GO b) Thermal treatment Supercapacitors/capacity: 135.36 F g −1 [31] Pristine rGO c) Liquid-liquid interfacial precipitaion FET devices/p-type behavior [30] Pristine Pristine Ultrasonic treatment Solar cell PCE: 0.85% [83] Pristine GO Ultrasonic treatment Catalysis/redox of biomolecules [84] Pristine GO Ultrasonic treatment Sensor/oxidation of cis-jasmone [85] Pristine rGO c) Ultrasonic treatment Sensor/detection of glucose [87] Pristine Pristine graphene was synthesized by either chemical vapor deposition (CVD) or exfoliation of graphite; b) Graphene oxide (GO) was prepared by a modified Hummers method; c) Reduced graphene oxide (rGO) was synthesized via reduction of GO by a reductant such as hydrazine.…”

Section: Fullerene Graphenementioning

confidence: 99%

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Hybrids of Fullerenes and 2D Nanomaterials

2018

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Fullerene has a definite 0D closed‐cage molecular structure composed of merely sp2‐hybridized carbon atoms, enabling it to serve as an important building block that is useful for constructing supramolecular assemblies and micro/nanofunctional materials. Conversely, graphene has a 2D layered structure, possessing an exceptionally large specific surface area and high carrier mobility. Likewise, other emerging graphene‐analogous 2D nanomaterials, such as graphitic carbon nitride (g‐C3N4), transition‐metal dichalcogenides (TMDs), hexagonal boron nitride (h‐BN), and black phosphorus (BP), show unique electronic, physical, and chemical properties, which, however, exist only in the form of a monolayer and are typically anisotropic, limiting their applications. Upon hybridization with fullerenes, noncovalently or covalently, the physical/chemical properties of 2D nanomaterials can be tailored and, in most cases, improved, significantly extending their functionalities and applications. Here, an exhaustive review of all types of hybrids of fullerenes and 2D nanomaterials, such as graphene, g‐C3N4, TMDs, h‐BN, and BP, including their preparations, structures, properties, and applications, is presented. Finally, the prospects of fullerene‐2D nanomaterial hybrids, especially the opportunity of creating unknown functional materials by means of hybridization, are envisioned.

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“…Fullerenes (Buckyballs) are the spherical or ellipsoidal shaped molecules of carbon having different sizes and are 0D nanostructures. They have a band gap under ambient conditions [13] and can show metallic behavior if they are properly doped [14]. Carbon nanotubes (CNTs) are 1D cylindrical-shaped molecules of carbon and are considered to form by rolling a piece of graphene sheet.…”

Section: Single-walled Carbon Nanotube Structure and Optical Propertimentioning

confidence: 99%