Electron Transport and Electrochemistry of Mesomorphic Fullerenes with Long-Range Ordered Lamellae

Nakanishi, Takashi; Shen, Yanfei; Wang, Jiaobing; Yagai, Shiki; Funahashi, Masahiro; Kato, Takashi; Fernandes, Paulo; Möhwald, Helmuth; Kurth, Dirk G.

doi:10.1021/ja803593j

Cited by 88 publications

(82 citation statements)

References 35 publications

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“…2, the cast film of 1 on a glassy carbon electrode in 0.1 M aqueous n-Bu 4 NCl solution at 70 C exhibits two redox waves corresponding to the generation of C 60 mono-and dianions at potentials of E red , 1 À 697 mV and E red , 2 À 865 mV vs. Ag/AgCl, respectively. 40 1 is in a fluid-mesophase at 70 C, which facilitates the diffusion of molecules (e.g. the supporting electrolyte, solvent and C 60 molecules) throughout the system.…”

Section: Electrochemical Properties Of 1-swcnt Assemblymentioning

confidence: 99%

Assembly of carbon nanotubes and alkylated fullerenes: nanocarbon hybrid towards photovoltaic applications

et al. 2011

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Taking advantage of the non-covalent interaction between alkyl chains and the sidewalls of a singlewalled carbon nanotube (SWCNT), a nanocarbon hybrid of SWCNT and a fullerene (C 60 ) derivative with long alkyl chains was constructed as a donor-acceptor pair for photovoltaics and nanodevice investigations. It was found that SWCNT could be mostly unbundled by the alkylated C 60 (1) and was well-dispersed in organic solvents. As a photoactive material, the resultant nanocarbon hybrid, 1-SWCNT, performed well in light-energy harvesting applications in photoelectrochemical cells and nanoscale field-effect transistors (FET). Moreover, the 1-SWCNT assembly exhibited superhydrophobicity, providing an interesting opportunity to fabricate nanocarbon-based waterproof optoelectronic devices. In order to understand the photoexcitation process, the 1-SWCNT assembly was electrochemically and spectroscopically characterized. The electrochemical results showed that the SWCNT facilitated electronic communication between 1 and the electrode. The steady-state and timeresolved fluorescence and the photoluminescence excitation studies suggested efficient quenching of the singlet excited state of C 60 . Nanosecond transient absorption data revealed the one-electron reduction of fullerene, C 60 _ À , thereby demonstrating the photoinduced electron transfer from SWCNT to the C 60 unit in the 1-SWCNT assembly.

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Section: Electrochemical Properties Of 1-swcnt Assemblymentioning

confidence: 99%

Assembly of carbon nanotubes and alkylated fullerenes: nanocarbon hybrid towards photovoltaic applications

et al. 2011

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“…As an actual occurrence, multiple linear long alkyl chains attached C 60 derivatives (1 4), e.g. N methyl [60] fulleropyrrolidines carrying a phenyl substituent with multiple alkyloxy chains (Figure 1a), form a highly ordered lamellar mesophase 13,14 and dimensionally controlled nano/micro architectures. 15 19 Various solid objects such as spheres, bers, cones, owerlike, left and right handed microstructures, nano aked microparticles, and sheets are achieved by tuning the alkyl chain volume and varying the nature of solvent systems (Figure 1b j).…”

Section: A Pioneer In Room Temperature π Conjugated Molecular Liquidsmentioning

confidence: 99%

Room Temperature Liquid Formulation by Attaching Alkyl Chains on ^|^pi;-Conjugated Molecules

Nakanishi

2014

J. Synth. Org. Chem. Jpn.

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“…As Nakanishi et al demonstrated, self-assembly of alkyl-tail-attached fullerene derivatives in various solvents gives nanofibers, nanosheets, spheres, or flower-like nano-objects [55][56][57][58]. Fulleropyrrolidines functionalized with multi(alkyloxy)phenyl groups exhibit thermotropic polymorphism and were investigated for their high carrier mobilities [59]. These materials showed an electron mobility of ∼3 × 10-3 cm 2 V −1 s −1 in their highly ordered, compactly packed mesophase.…”

Section: Fullerene Assemblymentioning

confidence: 99%

Paradigm shift from self-assembly to commanded assembly of functional materials: recent examples in porphyrin/fullerene supramolecular systems

Ishihara

et al. 2012

Science and Technology of Advanced Materials

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Current nanotechnology based on top-down nanofabrication may encounter a variety of drawbacks in the near future so that development of alternative methods, including the so-called bottom-up approach, has attracted considerable attention. However, the bottom-up strategy, which often relies on spontaneous self-assembly, might be inefficient in the development of the requisite functional materials and systems. Therefore, assembly processes controlled by external stimuli might be a plausible strategy for the development of bottom-up nanotechnology. In this review, we demonstrate a paradigm shift from self-assembly to commanded assembly by describing several examples of assemblies of typical functional molecules, i.e. porphyrins and fullerenes. In the first section, we describe recent progress in the design and study of self-assembled and co-assembled supramolecular architectures of porphyrins and fullerenes. Then, we show examples of assembly induced by external stimuli. We emphasize the paradigm shift from self-assembly to commanded assembly by describing the recently developed electrochemical-coupling layer-by-layer (ECC-LbL) methodology.

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Electron Transport and Electrochemistry of Mesomorphic Fullerenes with Long-Range Ordered Lamellae

Cited by 88 publications

References 35 publications

Assembly of carbon nanotubes and alkylated fullerenes: nanocarbon hybrid towards photovoltaic applications

Assembly of carbon nanotubes and alkylated fullerenes: nanocarbon hybrid towards photovoltaic applications

Room Temperature Liquid Formulation by Attaching Alkyl Chains on ^|^pi;-Conjugated Molecules

Paradigm shift from self-assembly to commanded assembly of functional materials: recent examples in porphyrin/fullerene supramolecular systems

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