Nanoarchitectonics of C70 hexagonal nanosheets: Synthesis and charge transport properties

Mahdaoui, Dorra; Hirata, Chika; Nagaoka, Kahori; Miyazawa, Kun’ichi; Fujii, Kazuko; Ando, Toshihiro; Matsushita, Yoshitaka; Abderrabba, Manef; Ito, Osamu; Tsukagoshi, Kazuhito; Wakahara, Takatsugu

doi:10.1016/j.diamond.2022.109217

Cited by 6 publications

(3 citation statements)

References 48 publications

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“…The ambipolar characteristics observed in the C70/Fc nanosheets were also found in the C60/Fc nanosheets [34]. However, this result is in stark contrast to our previous findings, in which C70 nanosheet-based FETs displayed n-type behavior only [45]. Additionally, Fc is not typically recognized as a semiconductor material [39].…”

Section: Resultscontrasting

confidence: 93%

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Mahdaoui,

Hirata,

Nagaoka

et al. 2023

Nanomaterials

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Organic cocrystals, which are assembled by noncovalent intermolecular interactions, have garnered intense interest due to their remarkable chemicophysical properties and practical applications. One notable feature, namely, the charge transfer (CT) interactions within the cocrystals, not only facilitates the formation of an ordered supramolecular network but also endows them with desirable semiconductor characteristics. Here, we present the intriguing ambipolar CT properties exhibited by nanosheets composed of single cocrystals of C70/ferrocene (C70/Fc). When heated to 150 °C, the initially ambipolar monoclinic C70/Fc nanosheet-based field-effect transistors (FETs) were transformed into n-type face-centered cubic (fcc) C70 nanosheet-based FETs owing to the elimination of Fc. This thermally induced alteration in the crystal structure was accompanied by an irreversible switching of the semiconducting behavior of the device; thus, the device transitions from ambipolar to unipolar. Importantly, the C70/Fc nanosheet-based FETs were also found to be much more thermally stable than the previously reported C60/Fc nanosheet-based FETs. Furthermore, we conducted visible/near-infrared diffuse reflectance and photoemission yield spectroscopies to investigate the crucial role played by Fc in modulating the CT characteristics. This study provides valuable insights into the overall functionality of these nanosheet structures.

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Section: Resultscontrasting

confidence: 93%

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Mahdaoui,

Hirata,

Nagaoka

et al. 2023

Nanomaterials

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“…23,24 In addition, there were sharp peaks at 13.21 and 26.61, which were different from the general XRD pattern of biochar. According to the software analysis and literature, the peak centered at 13.21 was assigned to the (002) plane of fullerite C70 (PDF#50-1364), 25 and the peak at 26.61 was related to the formation of graphene (PDF#75-2078), 26 which may also be an important reason to improve the catalytic performance of the composites, since both C70 and graphene had excellent electron transport ability. Fig.…”

Section: Characterization Of Catalystsmentioning

confidence: 99%

Photocatalytic degradation of different antibiotics using TiO₂–carbon composites: a case study of tetracycline and ciprofloxacin

Tian,

Huang,

Wei

et al. 2023

New J. Chem.

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“…It can be likened to the Theory of Everything in the world of physics [ 63 ], and can be called the Method for Everything in materials science [ 64 ]. In fact, the concept of nanoarchitectonics is used in fundamental areas such as fabrication and control of materials [ 65 , 66 , 67 ], micro/nano-structure organization [ 68 , 69 , 70 ], understanding of physical phenomena [ 71 , 72 , 73 ], and pursuit of basic biological and biochemical functions [ 74 , 75 , 76 ], as well as application-oriented fields such as catalysis [ 77 , 78 , 79 ], sensors [ 80 , 81 , 82 ], devices [ 83 , 84 , 85 ], energy-related applications [ 86 , 87 , 88 ], environment-related applications [ 89 , 90 , 91 ], and biomedical applications [ 92 , 93 , 94 ].…”

Section: Introduction: Nanoarchitectonicsmentioning

confidence: 99%

Molecular Machines and Microrobots: Nanoarchitectonics Developments and On-Water Performances

Ariga

2022

Micromachines

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This review will focus on micromachines and microrobots, which are objects at the micro-level with similar machine functions, as well as nano-level objects such as molecular machines and nanomachines. The paper will initially review recent examples of molecular machines and microrobots that are not limited to interfaces, noting the diversity of their functions. Next, examples of molecular machines and micromachines/micro-robots functioning at the air-water interface will be discussed. The behaviors of molecular machines are influenced significantly by the specific characteristics of the air-water interface. By placing molecular machines at the air-water interface, the scientific horizon and depth of molecular machine research will increase dramatically. On the other hand, for microrobotics, more practical and advanced systems have been reported, such as the development of microrobots and microswimmers for environmental remediations and biomedical applications. The research currently being conducted on the surface of water may provide significant basic knowledge for future practical uses of molecular machines and microrobots.

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Nanoarchitectonics of C70 hexagonal nanosheets: Synthesis and charge transport properties

Cited by 6 publications

References 48 publications

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Photocatalytic degradation of different antibiotics using TiO₂–carbon composites: a case study of tetracycline and ciprofloxacin

Molecular Machines and Microrobots: Nanoarchitectonics Developments and On-Water Performances

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Nanoarchitectonics of C70 hexagonal nanosheets: Synthesis and charge transport properties

Cited by 6 publications

References 48 publications

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Photocatalytic degradation of different antibiotics using TiO2–carbon composites: a case study of tetracycline and ciprofloxacin

Molecular Machines and Microrobots: Nanoarchitectonics Developments and On-Water Performances

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Photocatalytic degradation of different antibiotics using TiO₂–carbon composites: a case study of tetracycline and ciprofloxacin